Citation: Nikolai Pushkarev. A CAP for Healthy LivingMainstreaming Health into the EU Common Agricultural PolicyEuropean Public Health Alliance (EPHA), 2015[J]. AIMS Public Health, 2015, 2(4): 844-887. doi: 10.3934/publichealth.2015.4.844
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The use of various sources of renewable energy becomes increasingly important in the worldwide effort of ameliorating problems associated with the use of fossil fuels. No doubt that solar energy is one of the most attractive sources of clean energy. Among different solar energy technologies,concentrated solar thermal power(CSP)is believed to be very promising for large-capacity power generation. Due to the possibility of incorporating solar thermal storage into the power generation system,CSP can better meet the power dem and at the time sun is down [1,2,3,4].
In the past decade we have seen a worldwide significant increase in solar thermal power generation capacity with the combination of solar thermal storage. The number of solar thermal power plants constructed in Southern Europe,USA,Africa,and Australia is increasing,which generate electricity by replacing conventional fuel-combustion facilities in power plants with solar thermal collection devices. Solar concentrators collect thermal energy and raise the temperature of the heat transfer fluid(HTF),which is fed to a heat exchanger and boils water into steam of high temperature and high pressure. The steam subsequently drives steam turbines,which generate electricity. There are four types of solar concentration technologies,parabolic trough,solar power tower,Fresnel reflectors,and solar dish Stirling engines. The first three use a HTF to take away the heat from the collectors and use the heat in power generation systems.
Heat transfer and heat storage are the two important roles of a HTF in concentrated solar power systems. The well-known HTF used in CSP systems in the earlier stage is made of organic substances,which is an eutectic mixture of biphenyl(C12H10) and diphenyl oxide(C12H10O),sold under the br and name of Therminol VP-1 and Dowtherm A [5,6]. It exhibits a low melting point of 12 °C(285 K)but is limited to an upper temperature of 390 °C(673 K)due to chemical dissociation above this temperature. This is not sufficiently high for the increasing dem and of thermal efficiency of a CSP system. The high vapor pressure(10 atm at 390 °C) and high cost of this HTF also significantly restrict its application.
Increasing the high temperature in a CSP plant from 390 ℃ to 500 ℃(using molten salts)would increase the Rankine cycle efficiency to the 40% range(compared to the efficiency of 37.6% using Therminol VP-1) and thereby reducing the levelized electricity cost by 2 cents/kWh [7,8]. For more development of CSP technologies,finding a heat transfer fluid working at much high temperatures is important.
There are multiple dem and s if a fluid serves as a heat transfer fluid in a large range of temperature variation. First the fluid should have a low freezing point to avoid solidification in the circulation system. Second,the fluid should be chemically stable at a high temperature,and at the same time to have low vapor pressures(below 1.0 atm)due to the safety requirement of containers and pipes. Third,the fluid must have minimum corrosion to the metal pipes and containers that hold the fluids. Forth,the heat transfer fluid should have favorable transport properties(low viscosity and high thermal conductivity)for efficient heat exchange and low pressure loss in the flow and circulation.
Molten salts have been studied for their possibility of high working temperatures,and in the meantime with low melting points,moderate density,high heat capacity,and high thermal conductivity. Other than favorable thermal and transport properties,long term thermal stability(or chemical stability with less corrosion to containers) and low cost of molten salt HTF is also very critical [9,10,11,12].
Due to the very strong dem and ,the research work for suitable molten salts for HTFs as well as thermal energy storage materials in solar thermal power plants [13,14] is very active recently. The studies on some inorganic salts used for thermal energy storage materials are available in several papers [15,16,17,18,19]. Zalba et al. [16] summarized thermal characteristics of some phase-change materials. Kenisarin [17] and Gil et al. [18,19] analyzed some phase change materials and the practical applications for solar thermal storage. So far,several well-recognized commercial molten salts by eutectic mixtures of nitrates or nitrites have been used in concentrated solar power systems mainly for thermal storage purpose,but can also be used as HTF. A binary mixture,Solar Salt(60 wt.% NaNO3/ 40 wt.% KNO3)has been used as thermal storage material in the 10 MWe solar-II central receiver project in California [20,21,22],in the 2-tank direct system of the Archimede project in
Italy [23],and the indirect thermal energy storage system for the Andasol plant in Spain [24,25].Solar Salt has a thermal stability(below 600 ℃) and a relatively high melting point(220 ℃). A new heat transfer fluid called Hitec,which is a ternary salt mixture of 53 wt.% KNO3/ 7wt.% NaNO3/
40 wt.% NaNO2,has been considered to replace the Solar Salt because of its low freezing point of
142 ℃ [26]. Hitec is thermally stable at temperatures up to 454 ℃,and may be used at temperature up to 538 ℃ for a short period [27]. A modified version,Hitec XL,is a mixture of 48 wt.% Ca(NO3)2/ 7 wt.% NaNO3/ 45 wt.% KNO3 which melts at about 133 ℃ and may be used at a temperature up to 500 ℃ [28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43]. Different compositions of Ca(NO3)2/ NaNO3/ KNO3 have been identified in the open literature as eutectic salts [29,30,31,32,33,34,35,36,37,38,39,40,41,42,43]. The ternary eutectic salt with composition of 44 wt.% Ca(NO3)2/ 12 wt.% NaNO3/ 44 wt.% KNO3 melts at 127.6 ℃ and its thermal stability is good at up to 622 ℃ [43]. Different phase diagrams also have been published for the Ca(NO3)2/ NaNO3/ KNO3 system [44,45,46,47].
There are also other ternary salts being developed and undergoing tests for industrial application. The eutectic salt in composition of 25.9 wt.% LiNO3/ 20.0 wt.% NaNO3/ 54.1 wt.% KNO3 melts at about 118 ℃ and thermal stability is up to 435 ℃ [48,49]. The salt in composition of 30wt.% LiNO3/ 18 wt.% NaNO3/ 52 wt.% KNO3 is reported to have thermal stabilities up to 550 ℃ and melting point of 120 ℃[50,51,52]. Another ternary nitrate salt mixtures consisting of 50-80 wt.% KNO3/ 0-25 wt.% LiNO3/ 10-45 wt.% Ca(NO3)2 melts below 100 ℃ and thermal stability is up to
500℃ [53]. S and ia National Laboratories developed a low-melting heat transfer fluid made of a mixture of four inorganic nitrate salts: 9-18 wt.%NaNO3/ 40-52 wt.%KNO3/ 13-21 wt.%LiNO3/20-27 wt.% Ca(NO3)2 [54]. This quaternary salts mixture has a melting temperature less than 100 ℃ and the thermal stability limit is greater than 500 ℃. The quaternary salt 17.77wt.% LiNO3/ 15.28 wt.% NaNO3/ 35.97wt.% KNO3/ 30.98 wt.% 2KNO3·Mg(NO3)2 melts at about 100.9 ℃ but there is no data about thermal stability [55]. Another quaternary nitrate salt mixture consisting of 17.5 wt.% LiNO3/ 14.2 wt.% NaNO3/ 50.5 wt.% KNO3/ 17.8 wt.% NaNO2 has a melting point of 99 ℃ and thermal stability at up to 500 ℃ [56]. Eutectic mixture with five species of salts also has been developed,for example,the salt with compositions of 6wt.% NaNO3/ 23 wt.% KNO3/ 8 wt.% LiNO3/ 19 wt.% Ca(NO3)2/ 44 wt.% CsNO3 melts at 65 ℃ and has thermal stability of up to 561 ℃ [29]. Nevertheless,nitrate and nitrite salt systems have been found not thermally stable at temperature above 600 ℃ from a large amount of research works. A summary of the above mentioned HTFs is in Table 1.
Name | Formula | Tmelt(℃) | Tmax(℃) |
Therminal VP-1 | (C12H10) and (C12H10O). Percentage not know. | 12 | 390 |
Solar Salt | wt. 60% NaNO3 /40% KNO3 | 220 | 600 |
Hitec | wt. 53% KNO3/7% NaNO3/40% NaNO2 | 142 | 454-538 |
Hitec XL | wt. 48% Ca(NO3)2/7% NaNO3/45% KNO3 | 133 | 500 |
NS-1 | wt. 44% Ca(NO3)2/12% NaNO3/44% KNO3 | 127.6 | 622 |
NS-2 | wt. 25.9% LiNO3/20.0% NaNO3/54.1% KNO3 | 118 | 435 |
NS-3 | wt. 30% LiNO3/18% NaNO3/52% KNO3 | 120 | 550 |
NS-4 | wt. 50-80% KNO3/0-25% LiNO3/10-45% Ca(NO3)2 | 100 | 500 |
NS-5 | wt. 17.77% LiNO3/15.28% NaNO3/35.97% KNO3/ 30.98% 2KNO3·Mg(NO3)2 | 100 | |
NS-6 | wt. 17.5% LiNO3/14.2% NaNO3/50.5% KNO3/ 17.8% NaNO2 | 99 | 500 |
NS-7 | wt. 6% NaNO3/23% KNO3/8% LiNO3/ 19% Ca(NO3)2/44% CsNO3 | 65 | 561 |
A target of high temperature at 800 ℃ for CSP has been proposed by US Department of Energy. This is possible to accomplish Brayton power cycle,which can further increase the heat-to-electricity efficiency. Therefore,it is proposed recently to replace molten nitrate-nitrite salt with other kinds of salts to possibly increase the applicable temperatures to the level of 800 ℃ and even up to 1000 ℃. Hundreds of inorganic salts and salt composites for HTF and latent heat storage in the temperature ranging from 120 ℃ to 1000 ℃ are listed in Kenisarin’s review paper [57]. Those materials are on the basis of chlorides,fluorides,bromides,hydroxides,nitrates,carbonates and other salts. He found out that almost no single inorganic salt possesses decent properties to serve as a qualified HTF. Binary and ternary eutectic compositions based on fluorides and chlorides are the most prospective materials in term of their possibly favorable thermal and transport properties,as well as reasonably low cost in particular.
The eutectics of fluoride salts have been utilized in space solar power and molten salt nuclear reactors because of their favorable thermal and transport properties,especially heat storage capacity,but with the disadvantage of high cost,material compatibility and toxicity [58,59,60]. Carbonates may also be used for high temperature HTF and latent heat storage materials,but with drawbacks of high viscosity and easy degradation [61,62]. Consequently,chlorides salts are attractive due to their possibly favorable properties and especially low cost [63].
Funded by U.S. Department of Energy,a team by researchers from the University of Arizona,Georgia Institute of Technology,and Arizona State University has been conducting studies to ternary,quaternary and even higher order eutectic salts based on five key species of halide salts—AlCl3,ZnCl2,FeCl3,NaCl,and KCl. These species are relatively inexpensive and also have great amount of reserve on the earth. The mixing of these ionic and covalent salts is expected to create favorable properties needed for HTF.
It is underst and able that ionic and covalent halide salts are different in molecule size,shape,and chemical bonding. The bonding of positive ion and negative ion can make disorder leading to eutectic mixture with low melting temperatures. In Figure 1,strong evidences of low melting points at some eutectic compositions are shown in the phase diagrams of some binary and ternary mixtures by halide ionic salt with covalent salt(NaCl-AlCl3,KCl-AlCl3,NaCl-ZnCl2,KCl-ZnCl2,NaCl-KCl-AlCl3,NaCl-KCl-ZnCl2). Although very promising,a significant amount of work needs to be conducted to fully underst and all the properties of these salts mixtures.
Obviously,identifying the eutectic compositions that have low melting points is only the first step of developing a HTF. As the final goal,a HTF should meet the target of thermal and transport properties in a relatively wide temperature range from below 250 ℃ to at least above 800 ℃. To obtain the thermal and transport properties(vapor pressure,density,viscosity,specific heat,thermal conductivity)for a high order mixture(of ternary and quaternary components),the properties of all individual components as well as all the low-order salt mixtures have to be identified. For this purpose,the present paper reviews the currently available experimental data for density,viscosity,
thermal conductivity,specific heat capacity,vapor pressure,and melting point of several halide salt single species as well as their binary to ternary mixtures. These data are expected to serve as the basis for further work of developing high order eutectic mixtures with underst and ing of their thermal and transport properties.
In this section,the thermal and transport properties of the five single species of molten salt(AlCl3,ZnCl2,FeCl3,NaCl,KCl)are provided for reference and evaluation on whether a salt can contribute to a better property of a possible eutectic salt mixture.
This salt has a relatively low melting point which is Tm = 465 K(192 ℃)[66]. However,it sublimes early at a temperature of 180 ℃. The surveyed properties for molten AlCl3 [66] are shown in Figure 2. The properties as functions of temperatures are given by the following equations:
ρ=3.7660038−1.3346×10−2T+2.7622×10−5T2−2.2331268×10−8T3 |
(1) |
where the units are p(g/cm3),T(K)in the range of 465-560 K.
μ=3.2146−9.6606×10−3T+7.4554×10−6T2 |
(2) |
where the unit of viscosity is 10-3(Pa s),and temperature is in K,in the range of 470-560K. The low viscosities may make AlCl3 a very good component for a eutectic salt mixture as the low viscosity is important to a HTF.
Pvap=10(7.42055−1948.55/T) |
(3) |
where the unit of pressure is Pvap(mm*Hg = 133.32 Pa),and the temperature is in K,in the range of 455-530K.
The s pecific heat capacity of liquid AlCl3 does not change greatly in a wide range of temperatures from466-1500K,which is around Cp=125.5 J/mol*K or equivalent to 941.2J/kg*K [67].
The vapor pressures of AlCl3 are quite high which are not favorable as a heat transfer fluid. It is thus expected that ionic salts in a eutectic mixture with AlCl3 can create inter-molecular bonding to suppress the vapor pressure. There are no thermal conductivity data found for liquid AlCl3 in the current survey.
Due to the low melting point and relatively low vapor pressure(compared to that of AlCl3),ZnCl2 is a very important species in halide salt family to contribute to a low melting point in a eutectic salt. The melting point of ZnCl2 is Tm = 556 K(283 ℃)[68]. Other properties are summarized as follows.
The density,viscosity,and vapor pressure of molten ZnCl2 versus temperatures are shown in Figure 3. The expressions for these properties as function of temperatures are given in Eqs.(4)-(6).
ρ=2.424−0.00046×(T−773) |
(4) |
where the units are p(g/cm3),T(K),and the equations is applicable in a temperature range of 758.7-823.7 K.
ln(μ)=0.2686−2665730.8×ln(T)/T2+19840539/T2 |
(5) |
where μ is in cp or 10-3 Pa s,and T is in(K); the range of temperature is in 571-893K.
It is interesting to see from Figure 3(b)that the viscosity at low temperatures is high but it decreases dramatically when temperature increases. The low viscosity at high temperature is advantageous; while the high viscosity at low temperature should be modified by adding other components in a eutectic salt mixture.
The vapor pressure of liquid ZnCl2 is relatively low compared to that of AlCl3. As shown in Figure 3(c)the vapor pressure of ZnCl2 is quite low at temperatures below 600 ℃,and at around 800 ℃ the vapor pressure reaches 2.0 atm. The correlation of vapor pressure and temperature reported by Keneshea and Cubicciotti [69] is in the form of
logp(mmHg)=(−8415.2/T)−5.034logT+26.420 |
(6) |
where the unit of temperature is K,mm*Hg = 133.32 Pa. The relatively low vapor pressure of ZnCl2 compared to that of AlCl3 makes it a more favorable component to contribute to a relatively lower vapor pressure in a eutectic salt mixture.
The specific heat capacityin the temperature range of 591-973K is around 24.1 cal/mol*K[70],or 739.54 J/(kg K). The present review could not find thermal conductivities for molten ZnCl2.
The melting point of salt FeCl3 is Tm = 555 K(282 ℃)[68]. The specific heat capacity of molten FeCl3 is Cp = 133.89 J/mol*K or 825.43 J/kg*K in the temperature range of 577-1500 K. This salt has a rather high vapor pressure as shown above in Figure 4. At about 340 ℃ the vapor pressure already reaches 2 atm [73]. For this salt to be a component in a eutectic salt mixture,its high vapor pressure can be a problem of concern. No other properties were found for molten FeCl3 in this survey.
Well known as the table salt,NaCl has a melting point of Tm = 1075 K(802 ℃)[66]. NaCl also has an almost unlimited reserve in seawater and thus has relatively low cost. Properties of molten NaCl are surveyed and given in Figure 5.
The correlations of the properties were given in Eqs.(7)to(9). For density there is
ρ=2.1393−5.430×10−4T |
(7) |
where the units are p(g/cm3) and T(K). The equation is applicable in the range of temperature of 1080-1290 K.
The expression of viscosity is
μ=0.08931exp(5248.1/RT) ) |
(8) |
the unit of viscosity is μ(cp) and that of temperature is T(K),the range of temperatures for this equation is 1090-1200 K and the universal gas constant is R = 1.98716(cal/K*mol). The relatively low viscosity of molten NaCl is favorable for it being used as a component in a eutectic salt mixture,which needs to have low viscosities at high temperatures.
The expression of thermal conductivity is
k=1.868×10−3+4.73×10−7T |
(9) |
where k has unit of(cal/cm*s*K = 418.4 W/m-K),and T is in(K),for the range of 1100-1200 K.
The expression of specific heat capacity is
Cp=−42.4478+113.526×t−43.6466×t2+5.89663×t3+39.1386/t2 |
(10) |
where unit of Cp is J/(mol*K),t = T(K)/1000,and T is in(K). The equation is applicable in a range of temperature from 1074 K to 2500 K.
The vapor pressure in a narrow temperature range for molten NaCl is expressed as:
Pvap=10(8.4459−9565/T) |
(11) |
where Pvap is in(mm*Hg = 133.32Pa),T is in(K),and the range of the temperature for the equation is 1250-1530 K. The low vapor pressure of molten NaCl is very favorable for a heat transfer fluid.
Potassium chloride has a melting point of Tm = 1043 K(770 ℃)[66]. The properties surveyed for molten salt KCl are given in Figure 6. The corresponding expressions of the properties against temperatures for the curves are given in Eqs.(12)to(15).
For density,there is
ρ=2.1359−5.831×10−4T |
(12) |
which is applicable in a temperature range of 1060-1200 K,the unit of density is p(g/cm3) and for T is(K). For viscosity there is
μ=0.0732exp(5601.7/RT) |
(13) |
where the unit of viscosity is μ(cp or 10-3 Pa s),T(K)is temperature,and R = 1.98716(cal/K*mol). The equation is applicable in a range of 1070-1170 K. The relatively low viscosities of this molten salt make it a favorable component for a eutectic salt mixture. The thermal conductivity is
k=−23.43×10−4+4.103×10−6T |
(14) |
where k has unit of cal/(cm*s*K = 418.4 W/m-K),temperature T has unit of(K),and the equations is applicable in the range of1050-1200 K. The thermal conductivities of molten salt KCl are slightly lower than that of molten NaCl.
Pvap=10(8.2800−9032/T) |
(15) |
where Pvap(mm*Hg = 133.32Pa)is vapor pressure,and T(K)is temperature which is in the range of 1180-1530 K. Obviously the low vapor pressure of molten KCl is helpful for it being used in a eutectic salt mixture.
The specific heat capacity of molten KCl is around Cp = 73.6 J/mol*K = 987.24 J/kg*K in the temperature range of 1044-2000 K.
This section surveyed properties of binary molten salts NaCl + AlCl3,KCl + AlCl3. The compositions mentioned in the discussion are all based on mole fractions. The covalent salts AlCl3 and ZnCl2 both have low melting point,while the ionic salts NaCl and KCl both have rather high boiling points or high temperature stability. It is thus promising that the mixture of covalent and ionic eutectic salts has the potential to possess both low melting point and good stability at high temperatures.
Eutectic melting pointfor NaCl + AlCl3 is generally low. For example,the mixture in a mole fraction of 36.8% NaCl + 63.2% AlCl3 has a melting point of Tm = 378-381 K(105-108 ℃)[66].
The densities of salt mixture NaCl + AlCl3 in three compositions under molten states at different temperatures are given in Table 2,which are also plotted in Figure 7(a). The more NaCl is included in the mixture,the high the densities are.
T(K) | p(kg/m3) | ||
27% NaCl + 73% AlCl3 | 38.2% NaCl + 61.8% AlCl3 | 48% NaCl + 52% AlCl3 | |
27%NaCl + 73%AlCl3: ρ=2011−0.92×T ,Temperature Range: 460-610K(16)
38.2%NaCl + 61.8%AlCl3:ρ=2034−0.866×T
,Temperature Range: 440-540K(17)
48%NaCl + 52%AlCl3: ρ=2068−0.838×T ,Temperature Range: 400-560K(18)
where p(kg/m3)is density and T(K)is temperature. | |||
400 | 1733 | ||
410 | 1724 | ||
420 | 1716 | ||
430 | 1708 | ||
440 | 1653 | 1699 | |
450 | 1644 | 1691 | |
460 | 1588 | 1635 | 1682 |
470 | 1579 | 1627 | 1674 |
480 | 1570 | 1618 | 1666 |
490 | 1561 | 1609 | 1657 |
500 | 1551 | 1601 | 1649 |
510 | 1542 | 1592 | 1641 |
520 | 1533 | 1583 | 1632 |
530 | 1524 | 1575 | 1624 |
540 | 1515 | 1566 | 1615 |
550 | 1505 | 1607 | |
560 | 1496 | 1598 | |
570 | 1487 | ||
580 | 1478 | ||
590 | 1469 | ||
600 | 1459 | ||
610 | 1450 |
Viscosities of molten salt mixture NaCl + AlCl3 in seven compositions are obtained from literature [66] as given in Table 3 and illustrated in Figure 7(b). The low viscosities are favorable for the eutectic molten salts being used as heat transfer fluids.
T(K) | μ(kg/m*s) | ||||||
50%NaCl | 45%NaCl | 40.01%NaCl | 35.04%NaCl | 30.08%NaCl | 25.20%NaCl | 20.28%NaCl | |
50%NaCl + 50%AlCl3 :
μ=7.2702×10−6exp(3285.3/RT) ,Range : 460-570 K(19)
45%NaCl + 55%AlCl3 : μ=6.8398×10−6exp(3413.5/RT) ,Range : 460-570 K(20)
40.01%NaCl + 59.99%AlCl3 : μ=5.7828×10−6exp(3661.1/RT) ,Range : 450-570 K(21)
35.04%NaCl + 64.96%AlCl3 : μ=4.9477×10−6exp(3850.2/RT) ,Range : 450-570 K(22)
30.08%NaCl + 69.92%AlCl3 : μ=4.2341×10−6exp(3966.7/RT) ,Range : 460-570 K(23)
25.20%NaCl + 74.80%AlCl3 : μ=3.6622×10−6exp(3977.5/RT) ,Range : 470-570 K(24)
20.28%NaCl + 79.72%AlCl3 :
μ=2.8309×10−6exp(3985.8/RT) ,Range : 480-570 K(25)
where μ(kg/m*s)is viscosity,T(K)is temperature,and R = 1.98716(cal/K*mol). | |||||||
50%AlCl3 | 55%AlCl3 | 59.99%AlCl3 | 64.96%AlCl3 | 69.92%AlCl3 | 74.80%AlCl3 | 79.72%AlCl3 | |
450 | 0.0003469 | 0.0003667 | |||||
460 | 0.0002645 | 0.000286 | 0.0003174 | 0.0003339 | 0.0003246 | ||
470 | 0.000245 | 0.000264 | 0.0002914 | 0.0003053 | 0.000296 | 0.000259 | |
480 | 0.0002277 | 0.000245 | 0.0002686 | 0.0002802 | 0.0002709 | 0.000237 | 0.0001848 |
490 | 0.0002123 | 0.000228 | 0.0002483 | 0.000258 | 0.0002489 | 0.0002177 | 0.0001697 |
500 | 0.0001984 | 0.000212 | 0.0002304 | 0.0002384 | 0.0002294 | 0.0002006 | 0.0001564 |
510 | 0.0001859 | 0.000199 | 0.0002143 | 0.000221 | 0.0002121 | 0.0001854 | 0.0001445 |
520 | 0.0001747 | 0.000186 | 0.0001999 | 0.0002054 | 0.0001967 | 0.000172 | 0.000134 |
530 | 0.0001645 | 0.000175 | 0.000187 | 0.0001915 | 0.000183 | 0.0001599 | 0.0001246 |
540 | 0.0001553 | 0.000165 | 0.0001753 | 0.0001789 | 0.0001707 | 0.0001491 | 0.0001162 |
550 | 0.0001469 | 0.000155 | 0.0001648 | 0.0001676 | 0.0001596 | 0.0001394 | 0.0001086 |
560 | 0.0001392 | 0.000147 | 0.0001552 | 0.0001574 | 0.0001496 | 0.0001306 | 0.0001017 |
570 | 0.0001322 | 0.000139 | 0.0001465 | 0.0001481 | 0.0001405 | 0.0001227 | 0.0000955 |
There is a very limited number of data for the thermal conductivity of NaCl + AlCl3 [66]. For a mixture in mole fraction of 27%NaCl + 73%AlCl3(with a melting point of 460 K)the liquid thermal conductivity at 467 K is 0.2217 W/(m K).
V apor pressures of NaCl + AlCl3 in a dozen of different compositions are shown in Table 4 and Figure 7(c). The corresponding equations of the vapor pressures are also provided in the table.
T(K) | Pvap(kPa) | |||||||||||
46.21% NaCl 53.79% AlCl3 | 45.75% NaCl 54.25% AlCl3 | 44.49% NaCl 55.51% AlCl3 | 41.94% NaCl 58.06% AlCl3 | 39.02% NaCl 60.98% AlCl3 | 37.32% NaCl 62.68% AlCl3 | 36.94% NaCl 63.06% AlCl3 | 34.10% NaCl 65.90% AlCl3 | 33.96% NaCl 66.04% AlCl3 | 30.72% NaCl 69.28% AlCl3 | 29.75% NaCl 70.25% AlCl3 | 26.07% NaCl 73.93% AlCl3 | |
46.21%NaCl + 53.79%AlCl3 :
Pvap=10(4.71496−1771/T)/760×101.325 ,Range : 440-490K(26) 45.75%NaCl + 54.25%AlCl3 : Pvap=10(5.94281−2304.5/T)/760×101.325 ,Range : 420-520K(27) 44.487%NaCl + 55.513%AlCl3 : Pvap=10(5.77583−2177.5/T)/760×101.325 ,Range : 420-470K(28) 41.938%NaCl + 58.062%AlCl3 : Pvap=10(6.72729−2416.6/T)/760×101.325 ,Range : 380-520K(29) 39.023%NaCl + 60.977%AlCl3: Pvap=10(7.34912−2542.8/T)/760×101.325 ,Range : 410-520K(30) 37.323%NaCl + 62.677%AlCl3 : Pvap=10(7.27205−2427.5/T)/760×101.325 ,Range : 410-520K(31) 36.954%NaCl + 63.046%AlCl3 : Pvap=10(7.09260−2304.9/T)/760×101.325 ,Range : 410-520K(32) 34.096%NaCl + 65.904%AlCl3 : Pvap=10(6.66296−1952.0/T)/760×101.325 ,Range : 430-520K(33) 33.964%NaCl + 66.036%AlCl3 : Pvap=10(7.20848−2208.4/T)/760×101.325 ,Range : 430-520K(34) 30.723%NaCl + 69.277%AlCl3 : Pvap=10(6.96901−1951.6/T)/760×101.325 ,Range : 440-520K(35) 29.745%NaCl + 70.255%AlCl3 : Pvap=10(7.04376−1956.6/T)/760×101.325 ,Range : 450-480K(36) 26.071%NaCl + 73.929%AlCl3 : Pvap=10(7.14703−1894.8/T)/760×101.325 ,Range : 460-520K(37) where Pvap(kPa)is vapor pressure and T(K)is temperature. | ||||||||||||
380 | 0.311 | |||||||||||
390 | 0.453 | |||||||||||
400 | 0.647 | |||||||||||
410 | 0.908 | 1.871 | 2.994 | 3.942 | ||||||||
420 | 0.381 | 0.52 | 1.255 | 2.629 | 4.142 | 5.366 | ||||||
430 | 0.511 | 0.687 | 1.707 | 3.636 | 5.645 | 7.199 | 17.715 | 15.76 | ||||
440 | 0.653 | 0.676 | 0.895 | 2.29 | 4.954 | 7.585 | 9.53 | 22.465 | 20.608 | 45.547 | ||
450 | 0.803 | 0.884 | 1.153 | 3.033 | 6.658 | 10.058 | 12.46 | 28.19 | 26.658 | 57.151 | 66.171 | |
460 | 0.977 | 1.143 | 1.469 | 3.969 | 8.835 | 13.176 | 16.101 | 35.026 | 34.081 | 71.009 | 82.26 | 142.171 |
470 | 1.18 | 1.461 | 1.852 | 5.134 | 11.583 | 17.064 | 20.581 | 43.12 | 43.119 | 87.414 | 101.318 | 173.96 |
480 | 1.413 | 1.848 | 6.57 | 15.015 | 21.861 | 26.039 | 52.626 | 54.02 | 106.681 | 123.714 | 211.076 | |
490 | 1.681 | 2.316 | 8.325 | 19.26 | 27.726 | 32.631 | 63.708 | 67.858 | 129.14 | 254.098 | ||
500 | 2.876 | 10.447 | 24.458 | 34.83 | 40.523 | 76.536 | 82.525 | 155.139 | 303.627 | |||
510 | 3.541 | 12.995 | 30.771 | 43.367 | 49.9 | 91.288 | 100.738 | 185.034 | 360.285 | |||
520 | 4.325 | 16.028 | 38.373 | 53.541 | 60.955 | 108.15 | 122.03 | 219.201 | 424.712 |
The melting point of this binary salt system is relatively low. For the mole composition of 33%KCl + 67%AlCl3 there is Tm = 401 K(128 ℃)[66]. The densities for mixtures in four different compositions at different temperatures are shown in Table 5 and drawn in Figure 8(a)[66]. Vapor pressures of the mixtures at four different compositions are shown in Table 6 and Figure 8(b)[66].
T(K) | p(kg/m3) | |||
20%KCl 80%AlCl3 | 33.33%KCl 66.67%AlCl3 | 50.03%KCl 49.97%AlCl3 | 52.78%KCl 47.22%AlCl3 | |
20%KCl + 80%AlCl3 :
ρ=2025.2−1.0038×T ,Range : 480-540K(38) 33.33%KCl + 66.67%AlCl3 : ρ=1988.9−0.7901×T ,Range : 500-780K(39) 50.03%KCl + 49.97%AlCl3 : ρ=1955.6−0.6622×T ,Range : 740-1040K(40) 66.66%KCl + 33.34%AlCl3 : ρ=1973.4−0.6101×T ,Range : 960-1040K(41) where ρ (kg/m3)is density and T(K)is temperature. | ||||
480 | 1543 | |||
500 | 1523 | 1594 | ||
520 | 1503 | 1578 | ||
540 | 1483 | 1562 | ||
560 | 1547 | |||
580 | 1531 | |||
600 | 1515 | |||
620 | 1499 | |||
640 | 1483 | |||
660 | 1468 | |||
680 | 1452 | |||
700 | 1436 | |||
720 | 1420 | |||
740 | 1404 | 1466 | ||
760 | 1389 | 1452 | ||
780 | 1373 | 1439 | ||
800 | 1426 | |||
820 | 1413 | |||
840 | 1399 | |||
860 | 1386 | |||
880 | 1373 | |||
900 | 1360 | |||
920 | 1346 | |||
940 | 1333 | |||
960 | 1320 | 1388 | ||
980 | 1307 | 1376 | ||
1000 | 1293 | 1363 | ||
1020 | 1280 | 1351 | ||
1040 | 1267 | 1339 |
T(K) | Pvap(kPa) | |||
49.9%KCl + 50.01%AlCl3 | 51.5%KCl + 48.5%AlCl3 | 57.6%KCl + 42.4%AlCl3 | 63.8%KCl + 36.2%AlCl3 | |
49.9%KCl + 50.01%AlCl3:
Pvap=(107.395−5860/T)/760×101.325 ,Range: 870-1070K(42) 51.5%KCl + 48.5%AlCl3: Pvap=(109.2386−7846/T)/760×101.325 ,Range: 910-1070K(43) 57.6%KCl + 42.4%AlCl3: Pvap=(108.943−7634/T)/760×101.325 ,Range: 920-1030K(44) 63.8%KCl + 36.2%AlCl3: Pvap=(108.4231−7212/T)/760×101.325 ,Range: 950-1030K(45) where Pvap is in kPa,unit of temperature is in K. | ||||
870 | 0.613 | |||
880 | 0.72 | |||
890 | 0.867 | |||
900 | 1.027 | |||
910 | 1.2 | 0.547 | ||
920 | 1.413 | 0.68 | 0.587 | |
930 | 1.653 | 0.84 | 0.72 | |
940 | 1.933 | 1.04 | 0.88 | |
950 | 2.24 | 1.267 | 1.08 | 0.907 |
960 | 2.6 | 1.547 | 1.307 | 1.08 |
970 | 3.013 | 1.88 | 1.573 | 1.293 |
980 | 3.466 | 2.28 | 1.893 | 1.547 |
990 | 3.986 | 2.746 | 2.28 | 1.827 |
1000 | 4.573 | 3.293 | 2.72 | 2.173 |
1010 | 5.226 | 3.933 | 3.226 | 2.56 |
1020 | 5.96 | 4.693 | 3.84 | 3 |
1030 | 6.773 | 5.573 | 4.533 | 3.52 |
1040 | 7.679 | 6.599 | ||
1050 | 8.693 | 7.786 | ||
1060 | 9.813 | 9.159 | ||
1070 | 11.052 | 10.732 |
This section surveyed properties of two ternary molten salts,NaCl + KCl + AlCl3 and NaCl + KCl + ZnCl2. All the compositions referred to are based on mole fraction.
There are two eutectic points for NaCl + KCl + AlCl3 [66]. The one with a composition of 20%NaCl + 16.5%KCl + 63.5%AlCl3 has a melting point ofTm = 361.9 K(88.9 ℃). The densities of the ternary salt with different compositions at different temperatures are given in Table 7 and Figure 9. There is no vapor pressure data found for this ternary system. However,the high vapor pressure of AlCl3 could make this system to have high vapor pressures and thus not suitable as a HTF.
T(K) | p(kg/m3) | ||||||
50%NaCl +40%KCl +10%AlCl3 | 55%NaCl +25%KCl +20%AlCl3 | 60%NaCl +30%KCl +10%AlCl3 | 60%NaCl +20%KCl +20%AlCl3 | 60%NaCl +10%KCl +30%AlCl3 | 65%NaCl +25%KCl +10%AlCl3 | 65%NaCl +10%KCl +25%AlCl3 | |
50%NaCl+40%KCl+10%AlCl3:
ρ=2136−0.923×T ,for T(K)in 500-540K(46) 55%NaCl+25%KCl+20%AlCl3: ρ=2105−0.903×T ,for T(K)in 440-480K(47) 60%NaCl+30%KCl+10%AlCl3: ρ=2096−0.882×T ,for T(K)in 430-480K(48) 60%NaCl+20%KCl+20%AlCl3: ρ=2117−0.97×T ,for T(K)in 430-480K(49) 60%NaCl+10%KCl+30%AlCl3: ρ=2059−0.822×T ,for T(K)in 470-520K(50) 65%NaCl+25%KCl+10%AlCl3: ρ=2059−0.877×T ,for T(K)in 430-480K(51) 65%NaCl+10%KCl+25%AlCl3: ρ=2115−1.02×T ,for T(K)in 960-1170K(52) where unit of density is p(kg/m3) and T is in(K). | |||||||
430 | 1716.7 | 1699.9 | 1681.9 | 1676.4 | |||
440 | 1707.7 | 1707.9 | 1690.2 | 1673.1 | 1666.2 | ||
450 | 1698.7 | 1699.1 | 1680.5 | 1664.4 | 1656.0 | ||
460 | 1689.6 | 1690.3 | 1670.8 | 1655.6 | 1645.8 | ||
470 | 1680.6 | 1681.5 | 1661.1 | 1672.7 | 1646.8 | 1635.6 | |
480 | 1671.6 | 1672.6 | 1651.4 | 1664.4 | 1638.0 | 1625.4 | |
490 | 1656.2 | ||||||
500 | 1674.5 | 1648.0 | |||||
510 | 1665.3 | 1639.8 | |||||
520 | 1656.0 | 1631.6 | |||||
530 | 1646.8 | ||||||
540 | 1637.6 |
There are three eutectic mixtures for this ternary system that may have melting temperatures below 250 ℃. One particular composition is 20% NaCl + 20% KCl + 60% ZnCl2 that has a melting point of Tm = 476 K(203 ℃). Because of the relatively low vapor pressure of ZnCl2,this eutectic salt may also have a low vapor pressure and thus is very promising to be a HTF. The densities of this eutectic mixture are given in Table 8 and Figure 10(a). Viscosities of the salt are given in Table 9 and Figure 10(b).
T(K) | p(g/cm3) | p(kg/m3) |
ρ=2.59−6.36×10−4(T−273) ; where the units are p(kg/m3),and T(K),in the range of 473-573K.(53) | ||
473 | 2.46 | 2462.8 |
483 | 2.46 | 2456.44 |
493 | 2.45 | 2450.08 |
503 | 2.44 | 2443.72 |
513 | 2.44 | 2437.36 |
523 | 2.43 | 2431 |
533 | 2.42 | 2424.64 |
543 | 2.42 | 2418.28 |
553 | 2.41 | 2411.92 |
563 | 2.41 | 2405.56 |
573 | 2.4 | 2399.2 |
T(K) | μ(cp) | μ(kg/m*s) |
μ=1.23×10−2√Texp(1.21×103T−283) ; where the units areμ(cp),and T(K),within the range of 473-573K.(54) | ||
473 | 155.9932 | 0.15599 |
483 | 114.6464 | 0.11465 |
493 | 86.8344 | 0.08683 |
503 | 67.5008 | 0.0675 |
513 | 53.6699 | 0.05367 |
523 | 43.5235 | 0.04352 |
533 | 35.9132 | 0.03591 |
543 | 30.0916 | 0.03009 |
553 | 25.5594 | 0.02556 |
563 | 21.9752 | 0.02198 |
573 | 19.1002 | 0.0191 |
This paper gave a brief introduction to the currently available high temperature HTFs and the necessity of developing new-generation materials for even higher working temperatures(at least 800 ℃)for the goal of high thermal efficiency in concentrated solar thermal power plant.
The authors particularly gave attention to possible mixtures of ionic and covalent halide salts for the potential of creating a eutectic salts to meet the basic criteria for a HTF. Low cost and almost unlimited reserve of halide salts is also important due to the large dem and in industry. The reviewing has found that some binary and ternary halide salts could have eutectic mixtures with low melting points,which therefore are recommendable for the components of a HTF.
For those halide salts recommended as the components of mixture eutectic molten salts,available properties of the individual c and idate and binary and ternary mixtures are surveyed and presented for reference of further studying and investigation of all the properties that remaining unknown so far. Table 10 summaries the availability of results obtained from literature. Some key conclusions from the survey are drawn:
(1)It is understood that the three covalent halide salts AlCl3,ZnCl2,and FeCl3 have relatively low melting points which may contribute to the low eutectic melting point for a mixture of ionic and covalent halide salts. However,the relatively very high vapor pressures of AlCl3 and FeCl3 are of concerns to the possible high vapor pressures of eutectic salt mixtures.
(2)Two binary eutectics salts NaCl-AlCl3 and KCl-AlCl3 show low eutectic melting points below 250 ℃. The system of NaCl-AlCl3 still has rather high vapor pressure which may come from the high vapor pressure of AlCl3. However,the eutectic of KCl-AlCl3 show relatively lower vapor pressure compared to that of NaCl-AlCl3. This is an indication that KCl is an important component to suppress the vapor pressure of eutectic mixtures. The viscosities of these two binary systems are low and very favorable.
(3)Two ternary eutectic salts from the system of NaCl-KCl-AlCl3 and NaCl-KCl-ZnCl2 showed low viscosities that are very favorable for heat transfer fluids. The densities of the two eutectic salts are also acceptable. However,there are no other thermal and transport properties,which need research and investigation.
Last but not least,the chemical corrosion of the surveyed salts to metals of pipes and containers is a very important issue. A detailed survey is yet to be carried out. However,one recent article [75] showed results of corrosion of Hastelloys in 13.4NaCl-33.7KCl-52.9ZnCl2(mol%)eutectic system. Evaluated from both electrochemical method and immersion test,the type N Hastelloy showed a higher corrosion rate of > 150 µm per year at 500 ℃,but the Hastelloy C-276 exhibited the lowest corrosion rate of 40 µm per year at 500 ℃. More results on corrosions of these salts to metals are expected to see in the future.
Referring to the available properties for these halide salts,the researchers teamed-up from the University of Arizona,Georgia Institute of Technology,and Arizona State University have been investigating details of properties of ternary salt systems(KCl-NaCl-AlCl3),(KCl-NaCl-ZnCl2),and (KCl-NaCl-FeCl3),as well as quaternary systems. Simulations and fast screening method are applied for searching eutectic salt compositions; while experimental tests are followed up to measure all the properties,including corrosion to metals,for evaluation of the suitability for a HTF.
Single Molten Salt | Binary Molten Salt | Ternary Molten Salt | ||||||||
AlCl3 | ZnCl2 | FeCl3 | NaCl | KCl | NaCl+AlCl3 | KCl+AlCl3 | NaCl+KCl | NaCl+KCl +AlCl3 | NaCl+KCl +ZnCl2 | |
√ : Data obtained from literature;× : No data available from literature | ||||||||||
Density | √ | √ | × | √ | √ | √ | √ | √ | √ | √ |
Viscosity | √ | √ | × | √ | √ | √ | × | √ | × | √ |
Thermal Conductivity | × | × | × | √ | √ | × | × | × | × | × |
Specific Heat Capacity | √ | √ | √ | √ | √ | × | × | × | × | × |
Vapor Pressure | √ | √ | √ | √ | √ | √ | √ | √ | × | × |
Melting Point | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ |
The support from the U.S. Office of DOE under the Contract DE-EE0005942 is gratefully acknowledged.
All authors declare no conflicts of interest in this paper.
[1] | Phil Hogan EU Commissioner for Agriculture (2015) Interview at the Forum for the Future of Agriculture by Views.eu, [online]. While using this quote EPHA however disagrees that the CAP should not be about farmers. |
[2] | Tim Lang (2004) European agricultural policy: Is health the missing link? In: London School of Economics and Political Science, Eurohealth issue: Integrating Public Health with European food and agricultural policy. online. Of course the policy also aimed to provide economic security for the farming population, which is visible in the CAP's mission statement. |
[3] | Also, in the past nutrient recommendation for protein intake, especially animal protein, was around twice as high as it is today, see for instance: J. Périssé (1981) Joint FAO/WHO/UNU Expert Consultation on Energy and Protein Requirements [online]. |
[4] | WHO Europe (2015) European Health Report 2015. [online] |
[5] | Art 168 Treaty on the Functioning of the European Union (TFEU). [online] |
[6] | WHO Europe (2012) Action plan for implementation of the European strategy for the Prevention and Control of Noncommunicable Diseases 2012-2016, p. 5. [online] |
[7] | Outcome of the “Global Burden of Disease” study (2013), a collaboration between seven leading international scientific institutes to systematically quantify the main causes of health loss. Institute for Health Metrics and Evaluation. University of Washington (2013) The global burden of disease. Generating evidence, guiding policy. European Union and European Free Trade Association Regional Edition. [online] |
[8] | The Disability Adjusted Life Year (DALY) is a measure of overall disease burden expressed as the number of years lost due to ill-health, disability or early death. The measure combines mortality and disease into one indicator. |
[9] | European Commission. Infographic: Tobacco in the EU. [online] |
[10] | FAO (2012) Sustainable diets and biodiversity. Directions and solutions for policy research and action. Proceedings of International Scientific Symposium. [online] |
[11] | Tim Lang et al. (2012) Ecological public health: the 21st century's big idea? The BMJ. [online] |
[12] | Lancet Commission on planetary health (2015) Safeguarding human health in the Anthropocene epoch. The Lancet. [online] |
[13] | Nick Watts et al. (2015) Health and climate change: policy responses to protect public health. The Lancet. [online] |
[14] | National Nutrition Council of Finland (2014) Finnish Nutrition Recommendations 2014. [online] |
[15] | Global Meat News (2015) Latest US dietary advice to avoid limiting meat. [online] |
[16] | European Commission (2013) Overview of CAP Reform 2014-2020. [online] |
[17] | OECD (2015) Focus on Health Spending. Health Statistics 2015. [online] |
[18] | OECD iLibrary, Health at a Glance: Europe 2012. [online] |
[19] | Vytenis Andriukaitis (16 July 2015) Speech outlining priorities for health until 2019 at European Policy Centre, [online] |
[20] | Sophie Hawkesworth et al. (2010) Feeding the world healthily: the challenge of measuring the effects of agriculture on health. Philosophical Transactions B of The Royal Society. [online] |
[21] | Schäfer Elinder (2003) Public health aspects of the EU Common Agricultural Policy. Developments and recommendations for change in four sectors: Fruit and vegetables, dairy, wine and tobacco. National Institute of Public Health, Sweden |
[22] | Christopher Birt et al. (2007) A CAP on Health? The impact of the EU Common Agricultural Policy on public health. Faculty of Public Health. [online] |
[23] | Boyd Swinburn et al. (2011) The global obesity pandemic: shaped by global drivers and local environments. The Lancet. [online] |
[24] | Stefanie Vandevijvere et al. (2015) Increased food energy supply as a major driver of the obesity epidemic: a global perspective. Bulletin of the World Health Organisation. [online] |
[25] | Boyd Swinburn et al. (2009) Increased food energy supply is more than sufficient to explain the US epidemic of obesity. Am J Clin Nutr. [online] |
[26] | P. Scarborough et al. (2011) Increased energy intake entirely accounts for increase in body weight in women but not in men in the UK between 1968 and 2000. Br J Nutr. [online] |
[27] | T. Rawe et al. (2015) Cultivating equality: delivering just and sustainable food systems in a changing climate. CGIAR. [online] |
[28] | Josef Schmidhuber (2007) The EU Diet - Evolution, Evaluation and Impacts of the CAP. FAO. [online] |
[29] | Ralf Peters (2006) Roadblock to reform: the persistence of agricultural export subsidies. UNCTAD. [online] |
[30] | Eurostat. Cross-country comparison of final consumption expenditures on food and housing in 2011. [online] |
[31] | Franco Sassi (2010) Obesity and the Economics of Prevention - Fit not fat. OECD. [online] |
[32] | D. Lakdawalla et al. (2002) The Growth of Obesity and Technological Change: A theoretical and Empirical Examination. National Bureau for Economic Research. Working Paper W8946. [online] |
[33] | Alan Matthews (2015) Forum for the Future of Agriculture 2015 - Remarks on EU agricultural trade policy. CAPreform.eu. [online] |
[34] | Corinna Hawkes et al. (2012) Linking agricultureal policies with obesity and noncommunicable diseases: A new perspective for a globalising world. Food Policy. [online] |
[35] | A similar case was made by: The Netherlands Scientific Council for Government Policy (2014) Towards a food policy. English synopsis. [online] |
[36] | WHO Europe (2000) The First Action Plan for Food and Nutrition Policy (2000-2005). [online] |
[37] | EPHA (2010) Response to the “The Future of the Common Agricultural Policy” consultation. online. European Public Health & Agriculture Consortium (2011) Response to the “Reform of the CAP towards 2020 - impact assessment”. [online] |
[38] | Olivier de Schutter (2014) Report of the Special Rapporteur on the right to food, Final report: The transformative potential of the right to food. UN. [online] |
[39] | Regulation (EU) No 1307/2013 establishing rules for direct payments to farmers under support schemes within the framework of the common agricultural policy. [online] |
[40] | Regulation (EU) No 1308/2013 establishing a common organisation of the markets in agricultural products. [online] |
[41] | Regulation (EU) No 1305/2013 on support for rural development. [online] |
[42] | Treaty on the European Union. online. Treaty on the Functioning of the European Union. [online] |
[43] | Karen Lock et al. (2003) Health impact assessment of agriculture and food policies: lessons learnt from the Republic of Slovenia. Bulletin of the World Health Organisation. [online] |
[44] | Vytenis Andriukaitis. EU Commissioner for Health (2015) Letter to the EU Ministers of Health. [online] |
[45] | Scotch Whisky Association, the European Spirits Association and the Comité Européen des Entreprises Vins. |
[46] | Scottish Court of Session (2013) Opinion by Lord Doherty. online. Judiciary of Scotland (2013) Petition for Judicial Review by Scotch Whisky Association & Others, [online] |
[47] | Politico (2015) Health chief blasts alcohol lobbyists. [online] |
[48] | Case C-333/14: Reference for a preliminary ruling from Court of Session, Scotland (United Kingdom) made on 8 July 2014 — The Scotch Whisky Association and others against The Lord Advocate, The Advocate General for Scotland. [online] |
[49] | Opinion of Advocate General Yves Bot (2015) In the case: The Scotch Whisky Association and others against The Lord Advocate, The Advocate General for Scotland. [online] |
[50] | WHO (2014) Global Status Report on Alcohol and Health 2014. [online] |
[51] | OECD (2015) Tackling harmful alcohol use. online. OECD (2015) Policy Brief. Tackling harmful alcohol use, [online] |
[52] | Giulia Meloni et al. (2012) The Political Economy of European Wine Regulation. Centre for Institutions and Economic Performance. Catholic University of Leuven. [online] |
[53] | European Commission (2006) Towards a sustainable European wine sector. [online] |
[54] | European Court of Auditors (2014) Is the EU investment and promotion support to the wine sector well managed and are its results on the competitiveness of EU wines demonstrated?. [online] |
[55] | European Court of Auditors (2012) The reform of the common organisation of the market in wine: progress to date. [online] |
[56] | Article 63 CMO Regulation. Member States may also choose to authorise less, but it may not be 0% or lower. |
[57] | European Court of Auditors (2014) Is the EU investment and promotion support to the wine sector well managed and are its results on the competitiveness of EU wines demonstrated? [online] |
[58] | Article 39 CMO Regulation |
[59] | Articles 45 to 52 of the CMO Regulation |
[60] | Article 44 CMO Regulation referring to Annex VI |
[61] | European Commission (2013) Wine CMO: First submission of financial table of the national support programme. [online]. Submissions were made under the previous CMO for wine, reviewed national envelopes are forthcoming. |
[62] | Article 45 CMO Regulation |
[63] | European Court of Auditors (2014) Is the EU investment and promotion support to the wine sector well managed and are its results on the competitiveness of EU wines demonstrated? [online] |
[64] | Articles 50 and 51 CMO Regulation |
[65] | European Court of Auditors (2014) Is the EU investment and promotion support to the wine sector well managed and are its results on the competitiveness of EU wines demonstrated? [online] |
[66] | Articles 48 and 49 CMO Regulation |
[67] | Articles 47 CMO Regulation |
[68] | Articles 52 CMO Regulation |
[69] | For more on the effects of the previous distillation support regimes: Schäfer Elinder (2003) Public health aspects of the EU Common Agricultural Policy. Developments and recommendations for change in four sectors: Fruit and vegetables, dairy, wine and tobacco. National Institute of Public Health, Sweden. |
[70] | European Commission (2002) Ex-post evaluation of the CMO for wine, Chapter 5. Distillation. [online] |
[71] | Article 46 CMO Regulation |
[72] | European Court of Auditors (2012) The reform of the common organisation of the market in wine: progress to date. [online] |
[73] | Giulia Meloni et al. (2015) L'Histoire se repete. Why the liberalization of the EU vineyard planting rights regime may require another French Revolution. Centre for Institutions and Economic Performance. Catholic University of Leuven. [online] |
[74] | European Court of Auditors (2012) The reform of the common organisation of the market in wine: progress to date. [online] |
[75] | Giulia Meloni et al. (2015) L'Histoire se repete. Why the liberalization of the EU vineyard planting rights regime may require another French Revolution. Centre for Institutions and Economic Performance. Catholic University of Leuven. [online] |
[76] | Nick Sheron, University of Southampton, unpublished graph. Values are measured in Purchasing Power Standard (PPS) based on data provided by DG AGRI, Eurostat and the WHO HFA database and analysed in SPSS(48, 78). |
[77] | The Brewers of Europe (2014) Beer Statistics 2014 edition. [online]WHO (2014) Global Status Report on Alcohol and Health 2014. [online] |
[78] | European Commission. DG Agriculture and Rural Development. Hops. [online] |
[79] | Deloitte, LEI Wageningen, Arcadia International (2009) Evaluation of the CAP measures relating to hops. [online] |
[80] | Article 52 Direct Payments Regulation |
[81] | European Commission. Infographic: Tobacco in the EU. online. In the past tobacco was also quite widely used in medicinal applications. See: Anne Charlton (2004) Medicinal uses of tobacco in history, Journal of the Royal Society of Medicine, [online]. |
[82] | Anna Gilmore et al. (2004) Tobacco-control policy in the European Union in: Eric Feldman et al. (ed) (2004) Unfiltered: Conflicts Over Tobacco Policy and Public Health. Harvard University Press. |
[83] | European Court of Auditors (1987) Special Report No 3/87. The common organisation of the market in raw tobacco accompanied by the Commission's replies. [online] |
[84] | Luk Joossens et al. (1996) Are tobacco subsidies a misuse of public funds? BMJ. [online] |
[85] | Anna Gilmore et al. (2004) Tobacco-control policy in the European Union in: Eric Feldman et al. (ed) (2004) Unfiltered: Conflicts Over Tobacco Policy and Public Health. Harvard University Press. |
[86] | Joy Townsend (1991) Tobacco and the European common agricultural policy. BMJ Clinical Research. [online] |
[87] | COGEA (2009) Evaluation of the CAP measures relating to the raw tobacco sector Synopsis. [online] |
[88] | Article 52 Direct Payments Regulation |
[89] | Under Article 68 of Council Regulation (EC) No 73/2009. The scheme runs until 2014. See: European Commission Answer to a written MEP question by Brian Hayes (E-005093-15). [online] |
[90] | See discussion below under the section: “Towards forward-looking direct payments”. |
[91] | As the principle of decoupled payments applies, it may no longer be possible to identify a tobacco farmer according to the documentation submitted to payment authorities. A separate question should therefore be included on whether the applicant cultivates tobacco. In case of fraud all granted support should be returned accompanied by an administrative penalty. |
[92] | WHO (2015) WHO calls on countries to reduce sugars intake among adults and children. [online] |
[93] | WHO (2015) Guideline: Sugars intake for adults and children. [online] |
[94] | For instance cardiovascular disease: Q. Yang et.al. (2014) Added sugar intake and cardiovascular disease mortality among US adults. JAMA Intern Med. [online] |
[95] | UCLA Newsroom (2012) This is your brain on sugar: UCLA study shows high-fructose diet sabotages learning, memory. [online] |
[96] | Arthur Westover et.al. (2002) A cross-national relationship between sugar consumption and major depression? Depression and Anxiety. [online] |
[97] | Emory Health Sciences (2014) High-fructose diet in adolescence may exacerbate depressive-like behaviour. Science Daily. [online] |
[98] | European Commission (1978), Commission Communication Future development of the Common Agricultural Policy. [online] |
[99] | Emilie Aguirre et al. (2015) Liberalising agricultural policy for sugar in Europe risks damaging public health. [online] |
[100] | ""Allison Burell et al. (2014) EU sugar policy: A sweet transition after 2015? Joint Research Centre. online. Restructuring of the sugar sector in 2006 also lead to a strong centralisation of sugar production and processing with many factory closings in countries like Poland and Italy. Much of the sugar processing is now concentrated, which drops a shadow over regional and rural development objectives. |
[101] | Article 124 and further and Article 232 CMO Regulation |
[102] | European Commission (2014) Prospects for EU agricultural markets and income 2014-2024. [online] |
[103] | Allison Burell et al. (2014) EU sugar policy: A sweet transition after 2015? Joint Research Centre. [online] |
[104] | Alan Mathews (2014) EU beet sugar prices to fall by 22-23% when quotas eliminated. CAPreform.eu. [online] |
[105] | C. Bonnet et al. (2011) Does the EU sugar policy reform increase added sugar consumption? An empirical evidence on the soft drink market. Health Economics. [online] |
[106] | Roya Kelishadi, et al. (2014) Association of fructose consumption and components of metabolic syndrome in human studies: A systematic review and meta-analysis, Nutrition. [online] |
[107] | Victoria Schoen et al. (2015) Should the UK be concerned about sugar? Food Research Collaboration. [online] |
[108] | Kawther Hashem et al. (2015) Does sugar pass the environmental and social test? Food Research Collaboration [online] |
[109] | Allison Burell et al. (2014) EU sugar policy: A sweet transition after 2015? Joint Research Centre. [online] |
[110] | Article 52 Direct payments Regulation |
[111] | European Commission (2014) The CAP towards 2020, Implementation of the new system of direct payments. MS notifications. [online] |
[112] | WHO (2015) Healthy Diet. Fact sheet No 394. [online] |
[113] | Henk Westhoek et al. (2011) The protein puzzle, the consumption and production of meat, dairy and fish in the European Union. Netherlands Environmental Assessment Agency. [online] |
[114] | European Commission (2012) Consultation paper: options for resource efficiency indicators. [online] |
[115] | International Agency for Research on Cancer (2015) Press release. IARC Monographs evaluate consumption of red meat and processed meat. online. Red meat includes beef, pork, lamb and mutton, goat |
[116] | World Cancer Research Fund. Red and processed meat and cancer prevention. online. Referring to meats which are preserved through smoking, curing, salting or through addition of preservatives, including ham, salami, bacon, sausages, hot dogs etc. |
[117] | World Cancer Research Fund, American Institute of Cancer Research (2007) Second Expert Report: Food, Nutrition, Physical activity and the Prevention of Cancer: a Global Perspective. [online] |
[118] | Henk Westhoek et.al. (2014) Food choices, health and environment: Effects of cutting Europe's meat and dairy intake. Global Environmental Change. [online] |
[119] | Mark Sutton et al. (ed) (2011) The European Nitrogen Assessment. Sources, effects and policy perspectives. [online] |
[120] | European Commission (2004) The meat sector in the European Union. [online] |
[121] | See for instance: World Resource Institute. Data series: Meat consumption per capita. [online] |
[122] | European Commission (1980) Agriculture and the problem of surpluses. p. 18-19. [online] |
[123] | Article 52 Direct payments Regulation |
[124] | Article 53 Direct payments Regulation |
[125] | 15% from all net ceilings added up. See Annex III Direct payments Regulation. |
[126] | European Commission. EU Draft Budget for 2016. online. Budget lines starting from code 05. |
[127] | Alan Mathews (2015) Two steps forward, one step back: coupled payments in the CAP. CAPreform.eu. [online] |
[128] | European Commission (2014) The CAP towards 2020. Implementation of the new system of direct payments. MS notifications. [online]. Promoting protein crop production in Europe can however be considered positive as a way to replace soy import from South America. |
[129] | European Court of Auditors (2012) Suckler cow and ewe and goat direct aids under partial implementation of SPS arrangements. online. Both these schemes expired in 2014 together with Regulation (EC) No 73/2009 on direct support schemes for farmers under the common agricultural policy. |
[130] | Article 52(8) Direct payment Regulation |
[131] | Article 26 CMO Regulation and further |
[132] | European Parliament Procedure File 2014/0014 COD. Aid scheme for the supply of fruit and vegetables, bananas and milk in the educational establishments. online. See also: Text adopted in EP Plenary on 27 May. [online] |
[133] | Eurostat (2011) Food: From farm to fork statistics. [online] |
[134] | FAO. Milk and Dairy products in human nutrition - questions and answers. [online] |
[135] | FAO. Food-based dietary guidelines, Food guidelines by country. online. . For criticism on reduced fat milk see for instance: David Ludwig et al. (2011) Three daily servings of reduced-fat milk - an evidence based recommendation? JAMA Pediatrics. [online] |
[136] | Articles 11 and 16 CMO Regulation |
[137] | Article 17 CMO Regulation |
[138] | European Commission (2015) Private storage in the pig meat sector. [online] |
[139] | European Commission Press release (2015) Safety net measures for dairy, fruit and vegetables to be extended. [online] |
[140] | Article 196 CMO Regulation |
[141] | Article 219 CMO Regulation. See also: Alan Mathews (2013) The end of export subsidies? CAPreform.eu. [online] |
[142] | Article 220 CMO Regulation |
[143] | European Parliament Resolution of 7 July 2015 on prospects for the EU dairy sector - review of the implementation of the Dairy Package online. See also: European Parliament News (2015) End of milk quotas: “Opportunities to build a more confident and robust dairy sector”. [online] |
[144] | Euractiv (2014) Moscow pork embargo causes havoc in Brussels. [online] |
[145] | AHDB Dairy (2015) EU Farmgate milk prices. [online] |
[146] | Copa-Cogeca Press release (2015) Copa and Cogeca warn at EU Milk Market Observatory meeting market deteriorated rapidly in past 4 weeks and EU action crucial. online. See also: Euractiv (2015) France promises emergency aid to farmers, online. & Euractiv (2015), Farmers look to EU food aid to boost meat market. [online] |
[147] | See for instance: VILT.be (2015) Landbouworganisaties komen met gemeeschappelijke eisen. online. A coalition of Belgian farmers' organizations demands what farmers really want i.e. fair prices. |
[148] | Aileen Robertson et al. (ed) (2004) Food and health in Europe: a new basis for action. WHO Europe. [online] |
[149] | M. Crawford et al. (1970) Comparative studies on fatty acid composition of wild and domestic meats. International Journal of Biochemistry. [online] |
[150] | Compassion in World Farming (2012) Nutritional benefits of higher welfare animal products. [online] |
[151] | B. H. Schwendel et al. (2014) Organic and conventionally produced milk - An evaluation of factors influencing milk quality. Journal of Dairy Science. [online] |
[152] | Liesbet Smit et al. (2010) Conjugated linoleic acid in adipose tissue and risk of myocardial infarction. The American Journal of Clinical Nutrition. [online] |
[153] | Compassion in World Farming, World Society for the Protection of Animals (2013) Zoonotic diseases, human health and farm animal welfare. [online] |
[154] | WHO (2015) Healthy Diet. Fact sheet No 394. [online] |
[155] | EUFIC (2012) Fruit and vegetables consumption in Europe - do Europeans get enough? [online] |
[156] | European Association for the Fresh Fruit and Vegetables Sector (2015) Freshfel Consumption Monitor. [online] |
[157] | AFC Management Consulting (2012) Evaluation of the European School Fruit Scheme - Final report. For the European Commission. [online] |
[158] | WHO (2009) Global Health Risks Summary Tables. [online] |
[159] | Article 23 CMO Regulation and further |
[160] | European Parliament Procedure File 2014/0014 COD. Aid scheme for the supply of fruit and vegetables, bananas and milk in the educational establishments. online. See also: Text adopted in EP Plenary on 27 May. [online] |
[161] | See for instance: Joint Open letter: Save the EU School Fruit Scheme: ‘Better Regulation' cannot go against the wellbeing of European children (2015). [online] |
[162] | European Court of Auditors (2011) Are the School milk and School fruit schemes effective? [online] |
[163] | AFC Management Consulting (2012) Evaluation of the European School Fruit Scheme - Final report. For the European Commission. [online] |
[164] | Processed fruits and vegetables are allowed but without added sugar, added fat, added salt, added sweeteners and/or artificial flavour enhancers (artificial food additive codes E620-E650) |
[165] | European Parliament Policy Study (2011) The EU Fruit and vegetables sector: overview and post-2013 CAP perspective. [online] |
[166] | Article 32 CMO Regulation and further |
[167] | European Commission. EU Draft Budget for 2016. online. Budget lines starting with code 05. |
[168] | European Parliament Policy Study (2015) Towards new rules for the EU's fruit and vegetables sector. [online] |
[169] | Schäfer Elinder (2003) Public health aspects of the EU Common Agricultural Policy. Developments and recommendations for change in four sectors: Fruit and vegetables, dairy, wine and tobacco. National Institute of Public Health, Sweden |
[170] | Lennert Veerman et al. (2005) The European Common Agricultural Policy on fruits and vegetables: exploring potential health gain from reform. European Journal of Public Health. [online] |
[171] | European Commission. Fruit and vegetables: crisis prevention and management. [online] |
[172] | Steve Wiggins et al. (2015) The rising cost of a healthy diet - changing relative prices of food in high income and emerging economies. Overseas Development Institute, UK. [online] |
[173] | European Parliament resolution of 7 July 2015 on the fruit and vegetables sector since the 2007 reform. [online] |
[174] | Luciano Trentini (2015) Les fruits et légumes européens dans le monde. Fruit and Horticultural European Regions Assembly. [online] |
[175] | Luciano Trentini (2015) Fruit and Horticultural European Regions Assembly. [online] |
[176] | Jos Bijman (2015) Towards new rules for the EU's fruit and vegetables sector. European Parliament policy study. [online] |
[177] | European Heart Network (2008) Response to “Towards a possible European school fruit scheme - Consultation document for impact assessment”. [online] |
[178] | Karen Lock et al. (2005) Fruit and vegetable policy in the European Union: Its effects on the burden of cardiovascular disease. London School of Hygiene and Tropical Medicine, European Heart Network. [online] |
[179] | European Parliament resolution of 7 July 2015 on the fruit and vegetables sector since the 2007 reform. [online] |
[180] | An Ruopeng (2015) Nationwide Expansion of a Financial Incentive Program on Fruit and Vegetable Purchases among Supplemental Nutrition Assistance Program Participants: A Cost-effectiveness Analysis. Social Science & Medicine. [online] |
[181] | F. Ford et al. (2009) Effect of the introduction of ‘Healthy start' on dietary behaviour during and after pregnancy: early results from the ‘before and after'. [online] |
[182] | European Commission (2014) First Commission interim report on the implementation of Pilot Projects and Preparatory Actions 2014. [online] |
[183] | Anne-Marie Mayer (1997) Historical changes in the mineral content of fruits and vegetables. British Food Journal. [online] |
[184] | Aileen Robertson et al. (ed) (2004) Food and health in Europe: a new basis for action. WHO Europe. [online] |
[185] | See: Directive 2009/128/EC establishing a framework for Community action to achieve the sustainable use of pesticides. [online] |
[186] | European Commission (2015) Annex Promotion on the internal market and in third countries. online. See also: European Commission Press release (2015) The Commission approves new promotion programmes for agricultural products. [online] |
[187] | European Commission (2014) Formal adoption of new EU promotion rules for agricultural products. [online] |
[188] | European Commission (2015) The new promotion policy. Synoptic presentation. [online] |
[189] | Regulation (EU) No 1144/2014 on information provision and promotion measures. [online] |
[190] | Graph: European Commission (2013) Overview of CAP Reform 2014-2020. online. First pillar funding amount is in current prices. |
[191] | European Commission DG AGRI (2011) The Future of CAP Direct Payments. [online] |
[192] | Article 25 and further Direct Payments Regulation |
[193] | European Parliament Policy Study (2015) Implementation of the First Pillar of the CAP 2014-2020 in the EU Member States. [online] |
[194] | European Commission DG AGRI (2013) CAP reform - an explanation of the main elements. [online] |
[195] | Article 36 Direct Payments Regulation |
[196] | Article 21 Direct Payments Regulation |
[197] | See for instance: Alan Mathews (2009) How decoupled is the single farm payment? CAPreform.eu. [online] |
[198] | The Economist (2005) Europe's farm follies. [online] |
[199] | European Parliament Policy Study (2015) Extent of Land Grabbing in the EU. [online] |
[200] | Article 41 and further Direct payments Regulation |
[201] | Article 61 and further Direct payments Regulation |
[202] | Article 11 Direct payments Regulation |
[203] | European Commission DG AGRI (2013) Structure and dynamics of EU farms: changes, trends and policy relevance. [online] |
[204] | European Commission (2010) Does population decline lead to economic decline in EU rural regions? [online] |
[205] | The Economist (2015) Rural France. Village croissant. [online] |
[206] | WHO Europe (2012) Addressing the social determinants of health: the urban dimension and the role of local government [online] |
[207] | John Bryden et al. (2004) Rural development and food policy in Europe. In: London School of Economics and Political Science. Eurohealth issue: Integrating Public Health with European food and agricultural policy. [online] |
[208] | European Parliament Policy Study (2015) Towards new rules for the EU's fruit and vegetables sector. [online] |
[209] | Article 5 Direct payments Regulation referring to Regulation (EU) online. which contains the list of cross-compliance measures in Annex II |
[210] | European Council of the European Union. Simplification of the EU's Common Agricultural Policy (CAP). [online] |
[211] | Article 43 and further Direct payments Regulation |
[212] | Directive 2009/128/EC establishing a framework for Community action to achieve the sustainable use of pesticides |
[213] | Recital 2 Rural development Regulation |
[214] | European Commission (2013) Overview of CAP Reform 2014-2020. [online]. In current prices. Rural development measures, unlike direct payments or market measures, are co-financed by Member States. |
[215] | Article 13 and further Rural development Regulation |
[216] | Joris Aertsen et.al. (2013) Valuing the carbon sequestration potential for European agriculture. Land Use Policy. [online] |
[217] | FAO (2013) Advancing agroforestry on the policy agenda. [online] |
[218] | European Commission (2014) Investment support under Rural Development Policy. online. Implementation of the First Pillar of the CAP 2014-2020 in the EU Member States |
[219] | European Court of Auditors (2014) Special report no 23/2014: Errors in rural development spending: what are the causes, and how are they being addressed? [online] |
[220] | Article 14 Direct payments Regulation. See also: Wageningen University, IEEP (2009) Study on the impact of modulation. [online] |
[221] | European Parliament Policy Study (2015) Implementation of the First Pillar of the CAP 2014-2020 in the EU Member States. [online] |
[222] | FAO (2012) Sustainable diets and biodiversity. Directions and solutions for policy research and action. Proceedings of International Scientific Symposium. [online] |
[223] | European Commission (2011) Evaluation of effects of direct support on farmers' incomes. [online] |
[224] | Eurostat. Cross-country comparison of final consumption expenditures on food and housing in 2011. online. In UK and Luxembour the average is below 10%, while in Latvia and Estonia it is near 20% of total expenditure. |
[225] | OECD (2012) Income inequality in the European Union. [online] |
[226] | UCL Institute of Health Equity (2014) Review of social determinants and the health divide in the WHO European Region: final report. WHO Europe. [online] |
[227] | Eurostat data in: Euractiv (2014) One out of four EU citizens at risk of poverty. [online] |
[228] | Aileen Robertson et al. (2007) Obesity and socio-economic groups in Europe: Evidence review and implications for action. Report for European Commission. [online] |
[229] | A. Drewnowski (2009) Obesity, diets and social inequality, Nutrition Reviews, online. See also: WHO (2012) Environmental Health Inequalities in Europe. [online] |
[230] | Belinda Loring et al. (2014) Obesity and inequities Guidance for addressing inequities in overweight and obesity. [online] |
[231] | European Commission (2005) The contribution of health to the economy in the European Union. [online] |
[232] | Lancet Commission on planetary health (2015) Safeguarding human health in the Anthropocene epoch. The Lancet. [online] |
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Name | Formula | Tmelt(℃) | Tmax(℃) |
Therminal VP-1 | (C12H10) and (C12H10O). Percentage not know. | 12 | 390 |
Solar Salt | wt. 60% NaNO3 /40% KNO3 | 220 | 600 |
Hitec | wt. 53% KNO3/7% NaNO3/40% NaNO2 | 142 | 454-538 |
Hitec XL | wt. 48% Ca(NO3)2/7% NaNO3/45% KNO3 | 133 | 500 |
NS-1 | wt. 44% Ca(NO3)2/12% NaNO3/44% KNO3 | 127.6 | 622 |
NS-2 | wt. 25.9% LiNO3/20.0% NaNO3/54.1% KNO3 | 118 | 435 |
NS-3 | wt. 30% LiNO3/18% NaNO3/52% KNO3 | 120 | 550 |
NS-4 | wt. 50-80% KNO3/0-25% LiNO3/10-45% Ca(NO3)2 | 100 | 500 |
NS-5 | wt. 17.77% LiNO3/15.28% NaNO3/35.97% KNO3/ 30.98% 2KNO3·Mg(NO3)2 | 100 | |
NS-6 | wt. 17.5% LiNO3/14.2% NaNO3/50.5% KNO3/ 17.8% NaNO2 | 99 | 500 |
NS-7 | wt. 6% NaNO3/23% KNO3/8% LiNO3/ 19% Ca(NO3)2/44% CsNO3 | 65 | 561 |
T(K) | p(kg/m3) | ||
27% NaCl + 73% AlCl3 | 38.2% NaCl + 61.8% AlCl3 | 48% NaCl + 52% AlCl3 | |
27%NaCl + 73%AlCl3: ρ=2011−0.92×T ,Temperature Range: 460-610K(16)
38.2%NaCl + 61.8%AlCl3:ρ=2034−0.866×T
,Temperature Range: 440-540K(17)
48%NaCl + 52%AlCl3: ρ=2068−0.838×T ,Temperature Range: 400-560K(18)
where p(kg/m3)is density and T(K)is temperature. | |||
400 | 1733 | ||
410 | 1724 | ||
420 | 1716 | ||
430 | 1708 | ||
440 | 1653 | 1699 | |
450 | 1644 | 1691 | |
460 | 1588 | 1635 | 1682 |
470 | 1579 | 1627 | 1674 |
480 | 1570 | 1618 | 1666 |
490 | 1561 | 1609 | 1657 |
500 | 1551 | 1601 | 1649 |
510 | 1542 | 1592 | 1641 |
520 | 1533 | 1583 | 1632 |
530 | 1524 | 1575 | 1624 |
540 | 1515 | 1566 | 1615 |
550 | 1505 | 1607 | |
560 | 1496 | 1598 | |
570 | 1487 | ||
580 | 1478 | ||
590 | 1469 | ||
600 | 1459 | ||
610 | 1450 |
T(K) | μ(kg/m*s) | ||||||
50%NaCl | 45%NaCl | 40.01%NaCl | 35.04%NaCl | 30.08%NaCl | 25.20%NaCl | 20.28%NaCl | |
50%NaCl + 50%AlCl3 :
μ=7.2702×10−6exp(3285.3/RT) ,Range : 460-570 K(19)
45%NaCl + 55%AlCl3 : μ=6.8398×10−6exp(3413.5/RT) ,Range : 460-570 K(20)
40.01%NaCl + 59.99%AlCl3 : μ=5.7828×10−6exp(3661.1/RT) ,Range : 450-570 K(21)
35.04%NaCl + 64.96%AlCl3 : μ=4.9477×10−6exp(3850.2/RT) ,Range : 450-570 K(22)
30.08%NaCl + 69.92%AlCl3 : μ=4.2341×10−6exp(3966.7/RT) ,Range : 460-570 K(23)
25.20%NaCl + 74.80%AlCl3 : μ=3.6622×10−6exp(3977.5/RT) ,Range : 470-570 K(24)
20.28%NaCl + 79.72%AlCl3 :
μ=2.8309×10−6exp(3985.8/RT) ,Range : 480-570 K(25)
where μ(kg/m*s)is viscosity,T(K)is temperature,and R = 1.98716(cal/K*mol). | |||||||
50%AlCl3 | 55%AlCl3 | 59.99%AlCl3 | 64.96%AlCl3 | 69.92%AlCl3 | 74.80%AlCl3 | 79.72%AlCl3 | |
450 | 0.0003469 | 0.0003667 | |||||
460 | 0.0002645 | 0.000286 | 0.0003174 | 0.0003339 | 0.0003246 | ||
470 | 0.000245 | 0.000264 | 0.0002914 | 0.0003053 | 0.000296 | 0.000259 | |
480 | 0.0002277 | 0.000245 | 0.0002686 | 0.0002802 | 0.0002709 | 0.000237 | 0.0001848 |
490 | 0.0002123 | 0.000228 | 0.0002483 | 0.000258 | 0.0002489 | 0.0002177 | 0.0001697 |
500 | 0.0001984 | 0.000212 | 0.0002304 | 0.0002384 | 0.0002294 | 0.0002006 | 0.0001564 |
510 | 0.0001859 | 0.000199 | 0.0002143 | 0.000221 | 0.0002121 | 0.0001854 | 0.0001445 |
520 | 0.0001747 | 0.000186 | 0.0001999 | 0.0002054 | 0.0001967 | 0.000172 | 0.000134 |
530 | 0.0001645 | 0.000175 | 0.000187 | 0.0001915 | 0.000183 | 0.0001599 | 0.0001246 |
540 | 0.0001553 | 0.000165 | 0.0001753 | 0.0001789 | 0.0001707 | 0.0001491 | 0.0001162 |
550 | 0.0001469 | 0.000155 | 0.0001648 | 0.0001676 | 0.0001596 | 0.0001394 | 0.0001086 |
560 | 0.0001392 | 0.000147 | 0.0001552 | 0.0001574 | 0.0001496 | 0.0001306 | 0.0001017 |
570 | 0.0001322 | 0.000139 | 0.0001465 | 0.0001481 | 0.0001405 | 0.0001227 | 0.0000955 |
T(K) | Pvap(kPa) | |||||||||||
46.21% NaCl 53.79% AlCl3 | 45.75% NaCl 54.25% AlCl3 | 44.49% NaCl 55.51% AlCl3 | 41.94% NaCl 58.06% AlCl3 | 39.02% NaCl 60.98% AlCl3 | 37.32% NaCl 62.68% AlCl3 | 36.94% NaCl 63.06% AlCl3 | 34.10% NaCl 65.90% AlCl3 | 33.96% NaCl 66.04% AlCl3 | 30.72% NaCl 69.28% AlCl3 | 29.75% NaCl 70.25% AlCl3 | 26.07% NaCl 73.93% AlCl3 | |
46.21%NaCl + 53.79%AlCl3 :
Pvap=10(4.71496−1771/T)/760×101.325 ,Range : 440-490K(26) 45.75%NaCl + 54.25%AlCl3 : Pvap=10(5.94281−2304.5/T)/760×101.325 ,Range : 420-520K(27) 44.487%NaCl + 55.513%AlCl3 : Pvap=10(5.77583−2177.5/T)/760×101.325 ,Range : 420-470K(28) 41.938%NaCl + 58.062%AlCl3 : Pvap=10(6.72729−2416.6/T)/760×101.325 ,Range : 380-520K(29) 39.023%NaCl + 60.977%AlCl3: Pvap=10(7.34912−2542.8/T)/760×101.325 ,Range : 410-520K(30) 37.323%NaCl + 62.677%AlCl3 : Pvap=10(7.27205−2427.5/T)/760×101.325 ,Range : 410-520K(31) 36.954%NaCl + 63.046%AlCl3 : Pvap=10(7.09260−2304.9/T)/760×101.325 ,Range : 410-520K(32) 34.096%NaCl + 65.904%AlCl3 : Pvap=10(6.66296−1952.0/T)/760×101.325 ,Range : 430-520K(33) 33.964%NaCl + 66.036%AlCl3 : Pvap=10(7.20848−2208.4/T)/760×101.325 ,Range : 430-520K(34) 30.723%NaCl + 69.277%AlCl3 : Pvap=10(6.96901−1951.6/T)/760×101.325 ,Range : 440-520K(35) 29.745%NaCl + 70.255%AlCl3 : Pvap=10(7.04376−1956.6/T)/760×101.325 ,Range : 450-480K(36) 26.071%NaCl + 73.929%AlCl3 : Pvap=10(7.14703−1894.8/T)/760×101.325 ,Range : 460-520K(37) where Pvap(kPa)is vapor pressure and T(K)is temperature. | ||||||||||||
380 | 0.311 | |||||||||||
390 | 0.453 | |||||||||||
400 | 0.647 | |||||||||||
410 | 0.908 | 1.871 | 2.994 | 3.942 | ||||||||
420 | 0.381 | 0.52 | 1.255 | 2.629 | 4.142 | 5.366 | ||||||
430 | 0.511 | 0.687 | 1.707 | 3.636 | 5.645 | 7.199 | 17.715 | 15.76 | ||||
440 | 0.653 | 0.676 | 0.895 | 2.29 | 4.954 | 7.585 | 9.53 | 22.465 | 20.608 | 45.547 | ||
450 | 0.803 | 0.884 | 1.153 | 3.033 | 6.658 | 10.058 | 12.46 | 28.19 | 26.658 | 57.151 | 66.171 | |
460 | 0.977 | 1.143 | 1.469 | 3.969 | 8.835 | 13.176 | 16.101 | 35.026 | 34.081 | 71.009 | 82.26 | 142.171 |
470 | 1.18 | 1.461 | 1.852 | 5.134 | 11.583 | 17.064 | 20.581 | 43.12 | 43.119 | 87.414 | 101.318 | 173.96 |
480 | 1.413 | 1.848 | 6.57 | 15.015 | 21.861 | 26.039 | 52.626 | 54.02 | 106.681 | 123.714 | 211.076 | |
490 | 1.681 | 2.316 | 8.325 | 19.26 | 27.726 | 32.631 | 63.708 | 67.858 | 129.14 | 254.098 | ||
500 | 2.876 | 10.447 | 24.458 | 34.83 | 40.523 | 76.536 | 82.525 | 155.139 | 303.627 | |||
510 | 3.541 | 12.995 | 30.771 | 43.367 | 49.9 | 91.288 | 100.738 | 185.034 | 360.285 | |||
520 | 4.325 | 16.028 | 38.373 | 53.541 | 60.955 | 108.15 | 122.03 | 219.201 | 424.712 |
T(K) | p(kg/m3) | |||
20%KCl 80%AlCl3 | 33.33%KCl 66.67%AlCl3 | 50.03%KCl 49.97%AlCl3 | 52.78%KCl 47.22%AlCl3 | |
20%KCl + 80%AlCl3 :
ρ=2025.2−1.0038×T ,Range : 480-540K(38) 33.33%KCl + 66.67%AlCl3 : ρ=1988.9−0.7901×T ,Range : 500-780K(39) 50.03%KCl + 49.97%AlCl3 : ρ=1955.6−0.6622×T ,Range : 740-1040K(40) 66.66%KCl + 33.34%AlCl3 : ρ=1973.4−0.6101×T ,Range : 960-1040K(41) where ρ (kg/m3)is density and T(K)is temperature. | ||||
480 | 1543 | |||
500 | 1523 | 1594 | ||
520 | 1503 | 1578 | ||
540 | 1483 | 1562 | ||
560 | 1547 | |||
580 | 1531 | |||
600 | 1515 | |||
620 | 1499 | |||
640 | 1483 | |||
660 | 1468 | |||
680 | 1452 | |||
700 | 1436 | |||
720 | 1420 | |||
740 | 1404 | 1466 | ||
760 | 1389 | 1452 | ||
780 | 1373 | 1439 | ||
800 | 1426 | |||
820 | 1413 | |||
840 | 1399 | |||
860 | 1386 | |||
880 | 1373 | |||
900 | 1360 | |||
920 | 1346 | |||
940 | 1333 | |||
960 | 1320 | 1388 | ||
980 | 1307 | 1376 | ||
1000 | 1293 | 1363 | ||
1020 | 1280 | 1351 | ||
1040 | 1267 | 1339 |
T(K) | Pvap(kPa) | |||
49.9%KCl + 50.01%AlCl3 | 51.5%KCl + 48.5%AlCl3 | 57.6%KCl + 42.4%AlCl3 | 63.8%KCl + 36.2%AlCl3 | |
49.9%KCl + 50.01%AlCl3:
Pvap=(107.395−5860/T)/760×101.325 ,Range: 870-1070K(42) 51.5%KCl + 48.5%AlCl3: Pvap=(109.2386−7846/T)/760×101.325 ,Range: 910-1070K(43) 57.6%KCl + 42.4%AlCl3: Pvap=(108.943−7634/T)/760×101.325 ,Range: 920-1030K(44) 63.8%KCl + 36.2%AlCl3: Pvap=(108.4231−7212/T)/760×101.325 ,Range: 950-1030K(45) where Pvap is in kPa,unit of temperature is in K. | ||||
870 | 0.613 | |||
880 | 0.72 | |||
890 | 0.867 | |||
900 | 1.027 | |||
910 | 1.2 | 0.547 | ||
920 | 1.413 | 0.68 | 0.587 | |
930 | 1.653 | 0.84 | 0.72 | |
940 | 1.933 | 1.04 | 0.88 | |
950 | 2.24 | 1.267 | 1.08 | 0.907 |
960 | 2.6 | 1.547 | 1.307 | 1.08 |
970 | 3.013 | 1.88 | 1.573 | 1.293 |
980 | 3.466 | 2.28 | 1.893 | 1.547 |
990 | 3.986 | 2.746 | 2.28 | 1.827 |
1000 | 4.573 | 3.293 | 2.72 | 2.173 |
1010 | 5.226 | 3.933 | 3.226 | 2.56 |
1020 | 5.96 | 4.693 | 3.84 | 3 |
1030 | 6.773 | 5.573 | 4.533 | 3.52 |
1040 | 7.679 | 6.599 | ||
1050 | 8.693 | 7.786 | ||
1060 | 9.813 | 9.159 | ||
1070 | 11.052 | 10.732 |
T(K) | p(kg/m3) | ||||||
50%NaCl +40%KCl +10%AlCl3 | 55%NaCl +25%KCl +20%AlCl3 | 60%NaCl +30%KCl +10%AlCl3 | 60%NaCl +20%KCl +20%AlCl3 | 60%NaCl +10%KCl +30%AlCl3 | 65%NaCl +25%KCl +10%AlCl3 | 65%NaCl +10%KCl +25%AlCl3 | |
50%NaCl+40%KCl+10%AlCl3:
ρ=2136−0.923×T ,for T(K)in 500-540K(46) 55%NaCl+25%KCl+20%AlCl3: ρ=2105−0.903×T ,for T(K)in 440-480K(47) 60%NaCl+30%KCl+10%AlCl3: ρ=2096−0.882×T ,for T(K)in 430-480K(48) 60%NaCl+20%KCl+20%AlCl3: ρ=2117−0.97×T ,for T(K)in 430-480K(49) 60%NaCl+10%KCl+30%AlCl3: ρ=2059−0.822×T ,for T(K)in 470-520K(50) 65%NaCl+25%KCl+10%AlCl3: ρ=2059−0.877×T ,for T(K)in 430-480K(51) 65%NaCl+10%KCl+25%AlCl3: ρ=2115−1.02×T ,for T(K)in 960-1170K(52) where unit of density is p(kg/m3) and T is in(K). | |||||||
430 | 1716.7 | 1699.9 | 1681.9 | 1676.4 | |||
440 | 1707.7 | 1707.9 | 1690.2 | 1673.1 | 1666.2 | ||
450 | 1698.7 | 1699.1 | 1680.5 | 1664.4 | 1656.0 | ||
460 | 1689.6 | 1690.3 | 1670.8 | 1655.6 | 1645.8 | ||
470 | 1680.6 | 1681.5 | 1661.1 | 1672.7 | 1646.8 | 1635.6 | |
480 | 1671.6 | 1672.6 | 1651.4 | 1664.4 | 1638.0 | 1625.4 | |
490 | 1656.2 | ||||||
500 | 1674.5 | 1648.0 | |||||
510 | 1665.3 | 1639.8 | |||||
520 | 1656.0 | 1631.6 | |||||
530 | 1646.8 | ||||||
540 | 1637.6 |
T(K) | p(g/cm3) | p(kg/m3) |
ρ=2.59−6.36×10−4(T−273) ; where the units are p(kg/m3),and T(K),in the range of 473-573K.(53) | ||
473 | 2.46 | 2462.8 |
483 | 2.46 | 2456.44 |
493 | 2.45 | 2450.08 |
503 | 2.44 | 2443.72 |
513 | 2.44 | 2437.36 |
523 | 2.43 | 2431 |
533 | 2.42 | 2424.64 |
543 | 2.42 | 2418.28 |
553 | 2.41 | 2411.92 |
563 | 2.41 | 2405.56 |
573 | 2.4 | 2399.2 |
T(K) | μ(cp) | μ(kg/m*s) |
μ=1.23×10−2√Texp(1.21×103T−283) ; where the units areμ(cp),and T(K),within the range of 473-573K.(54) | ||
473 | 155.9932 | 0.15599 |
483 | 114.6464 | 0.11465 |
493 | 86.8344 | 0.08683 |
503 | 67.5008 | 0.0675 |
513 | 53.6699 | 0.05367 |
523 | 43.5235 | 0.04352 |
533 | 35.9132 | 0.03591 |
543 | 30.0916 | 0.03009 |
553 | 25.5594 | 0.02556 |
563 | 21.9752 | 0.02198 |
573 | 19.1002 | 0.0191 |
Single Molten Salt | Binary Molten Salt | Ternary Molten Salt | ||||||||
AlCl3 | ZnCl2 | FeCl3 | NaCl | KCl | NaCl+AlCl3 | KCl+AlCl3 | NaCl+KCl | NaCl+KCl +AlCl3 | NaCl+KCl +ZnCl2 | |
√ : Data obtained from literature;× : No data available from literature | ||||||||||
Density | √ | √ | × | √ | √ | √ | √ | √ | √ | √ |
Viscosity | √ | √ | × | √ | √ | √ | × | √ | × | √ |
Thermal Conductivity | × | × | × | √ | √ | × | × | × | × | × |
Specific Heat Capacity | √ | √ | √ | √ | √ | × | × | × | × | × |
Vapor Pressure | √ | √ | √ | √ | √ | √ | √ | √ | × | × |
Melting Point | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ |
Name | Formula | Tmelt(℃) | Tmax(℃) |
Therminal VP-1 | (C12H10) and (C12H10O). Percentage not know. | 12 | 390 |
Solar Salt | wt. 60% NaNO3 /40% KNO3 | 220 | 600 |
Hitec | wt. 53% KNO3/7% NaNO3/40% NaNO2 | 142 | 454-538 |
Hitec XL | wt. 48% Ca(NO3)2/7% NaNO3/45% KNO3 | 133 | 500 |
NS-1 | wt. 44% Ca(NO3)2/12% NaNO3/44% KNO3 | 127.6 | 622 |
NS-2 | wt. 25.9% LiNO3/20.0% NaNO3/54.1% KNO3 | 118 | 435 |
NS-3 | wt. 30% LiNO3/18% NaNO3/52% KNO3 | 120 | 550 |
NS-4 | wt. 50-80% KNO3/0-25% LiNO3/10-45% Ca(NO3)2 | 100 | 500 |
NS-5 | wt. 17.77% LiNO3/15.28% NaNO3/35.97% KNO3/ 30.98% 2KNO3·Mg(NO3)2 | 100 | |
NS-6 | wt. 17.5% LiNO3/14.2% NaNO3/50.5% KNO3/ 17.8% NaNO2 | 99 | 500 |
NS-7 | wt. 6% NaNO3/23% KNO3/8% LiNO3/ 19% Ca(NO3)2/44% CsNO3 | 65 | 561 |
T(K) | p(kg/m3) | ||
27% NaCl + 73% AlCl3 | 38.2% NaCl + 61.8% AlCl3 | 48% NaCl + 52% AlCl3 | |
27%NaCl + 73%AlCl3: ρ=2011−0.92×T ,Temperature Range: 460-610K(16)
38.2%NaCl + 61.8%AlCl3:ρ=2034−0.866×T
,Temperature Range: 440-540K(17)
48%NaCl + 52%AlCl3: ρ=2068−0.838×T ,Temperature Range: 400-560K(18)
where p(kg/m3)is density and T(K)is temperature. | |||
400 | 1733 | ||
410 | 1724 | ||
420 | 1716 | ||
430 | 1708 | ||
440 | 1653 | 1699 | |
450 | 1644 | 1691 | |
460 | 1588 | 1635 | 1682 |
470 | 1579 | 1627 | 1674 |
480 | 1570 | 1618 | 1666 |
490 | 1561 | 1609 | 1657 |
500 | 1551 | 1601 | 1649 |
510 | 1542 | 1592 | 1641 |
520 | 1533 | 1583 | 1632 |
530 | 1524 | 1575 | 1624 |
540 | 1515 | 1566 | 1615 |
550 | 1505 | 1607 | |
560 | 1496 | 1598 | |
570 | 1487 | ||
580 | 1478 | ||
590 | 1469 | ||
600 | 1459 | ||
610 | 1450 |
T(K) | μ(kg/m*s) | ||||||
50%NaCl | 45%NaCl | 40.01%NaCl | 35.04%NaCl | 30.08%NaCl | 25.20%NaCl | 20.28%NaCl | |
50%NaCl + 50%AlCl3 :
μ=7.2702×10−6exp(3285.3/RT) ,Range : 460-570 K(19)
45%NaCl + 55%AlCl3 : μ=6.8398×10−6exp(3413.5/RT) ,Range : 460-570 K(20)
40.01%NaCl + 59.99%AlCl3 : μ=5.7828×10−6exp(3661.1/RT) ,Range : 450-570 K(21)
35.04%NaCl + 64.96%AlCl3 : μ=4.9477×10−6exp(3850.2/RT) ,Range : 450-570 K(22)
30.08%NaCl + 69.92%AlCl3 : μ=4.2341×10−6exp(3966.7/RT) ,Range : 460-570 K(23)
25.20%NaCl + 74.80%AlCl3 : μ=3.6622×10−6exp(3977.5/RT) ,Range : 470-570 K(24)
20.28%NaCl + 79.72%AlCl3 :
μ=2.8309×10−6exp(3985.8/RT) ,Range : 480-570 K(25)
where μ(kg/m*s)is viscosity,T(K)is temperature,and R = 1.98716(cal/K*mol). | |||||||
50%AlCl3 | 55%AlCl3 | 59.99%AlCl3 | 64.96%AlCl3 | 69.92%AlCl3 | 74.80%AlCl3 | 79.72%AlCl3 | |
450 | 0.0003469 | 0.0003667 | |||||
460 | 0.0002645 | 0.000286 | 0.0003174 | 0.0003339 | 0.0003246 | ||
470 | 0.000245 | 0.000264 | 0.0002914 | 0.0003053 | 0.000296 | 0.000259 | |
480 | 0.0002277 | 0.000245 | 0.0002686 | 0.0002802 | 0.0002709 | 0.000237 | 0.0001848 |
490 | 0.0002123 | 0.000228 | 0.0002483 | 0.000258 | 0.0002489 | 0.0002177 | 0.0001697 |
500 | 0.0001984 | 0.000212 | 0.0002304 | 0.0002384 | 0.0002294 | 0.0002006 | 0.0001564 |
510 | 0.0001859 | 0.000199 | 0.0002143 | 0.000221 | 0.0002121 | 0.0001854 | 0.0001445 |
520 | 0.0001747 | 0.000186 | 0.0001999 | 0.0002054 | 0.0001967 | 0.000172 | 0.000134 |
530 | 0.0001645 | 0.000175 | 0.000187 | 0.0001915 | 0.000183 | 0.0001599 | 0.0001246 |
540 | 0.0001553 | 0.000165 | 0.0001753 | 0.0001789 | 0.0001707 | 0.0001491 | 0.0001162 |
550 | 0.0001469 | 0.000155 | 0.0001648 | 0.0001676 | 0.0001596 | 0.0001394 | 0.0001086 |
560 | 0.0001392 | 0.000147 | 0.0001552 | 0.0001574 | 0.0001496 | 0.0001306 | 0.0001017 |
570 | 0.0001322 | 0.000139 | 0.0001465 | 0.0001481 | 0.0001405 | 0.0001227 | 0.0000955 |
T(K) | Pvap(kPa) | |||||||||||
46.21% NaCl 53.79% AlCl3 | 45.75% NaCl 54.25% AlCl3 | 44.49% NaCl 55.51% AlCl3 | 41.94% NaCl 58.06% AlCl3 | 39.02% NaCl 60.98% AlCl3 | 37.32% NaCl 62.68% AlCl3 | 36.94% NaCl 63.06% AlCl3 | 34.10% NaCl 65.90% AlCl3 | 33.96% NaCl 66.04% AlCl3 | 30.72% NaCl 69.28% AlCl3 | 29.75% NaCl 70.25% AlCl3 | 26.07% NaCl 73.93% AlCl3 | |
46.21%NaCl + 53.79%AlCl3 :
Pvap=10(4.71496−1771/T)/760×101.325 ,Range : 440-490K(26) 45.75%NaCl + 54.25%AlCl3 : Pvap=10(5.94281−2304.5/T)/760×101.325 ,Range : 420-520K(27) 44.487%NaCl + 55.513%AlCl3 : Pvap=10(5.77583−2177.5/T)/760×101.325 ,Range : 420-470K(28) 41.938%NaCl + 58.062%AlCl3 : Pvap=10(6.72729−2416.6/T)/760×101.325 ,Range : 380-520K(29) 39.023%NaCl + 60.977%AlCl3: Pvap=10(7.34912−2542.8/T)/760×101.325 ,Range : 410-520K(30) 37.323%NaCl + 62.677%AlCl3 : Pvap=10(7.27205−2427.5/T)/760×101.325 ,Range : 410-520K(31) 36.954%NaCl + 63.046%AlCl3 : Pvap=10(7.09260−2304.9/T)/760×101.325 ,Range : 410-520K(32) 34.096%NaCl + 65.904%AlCl3 : Pvap=10(6.66296−1952.0/T)/760×101.325 ,Range : 430-520K(33) 33.964%NaCl + 66.036%AlCl3 : Pvap=10(7.20848−2208.4/T)/760×101.325 ,Range : 430-520K(34) 30.723%NaCl + 69.277%AlCl3 : Pvap=10(6.96901−1951.6/T)/760×101.325 ,Range : 440-520K(35) 29.745%NaCl + 70.255%AlCl3 : Pvap=10(7.04376−1956.6/T)/760×101.325 ,Range : 450-480K(36) 26.071%NaCl + 73.929%AlCl3 : Pvap=10(7.14703−1894.8/T)/760×101.325 ,Range : 460-520K(37) where Pvap(kPa)is vapor pressure and T(K)is temperature. | ||||||||||||
380 | 0.311 | |||||||||||
390 | 0.453 | |||||||||||
400 | 0.647 | |||||||||||
410 | 0.908 | 1.871 | 2.994 | 3.942 | ||||||||
420 | 0.381 | 0.52 | 1.255 | 2.629 | 4.142 | 5.366 | ||||||
430 | 0.511 | 0.687 | 1.707 | 3.636 | 5.645 | 7.199 | 17.715 | 15.76 | ||||
440 | 0.653 | 0.676 | 0.895 | 2.29 | 4.954 | 7.585 | 9.53 | 22.465 | 20.608 | 45.547 | ||
450 | 0.803 | 0.884 | 1.153 | 3.033 | 6.658 | 10.058 | 12.46 | 28.19 | 26.658 | 57.151 | 66.171 | |
460 | 0.977 | 1.143 | 1.469 | 3.969 | 8.835 | 13.176 | 16.101 | 35.026 | 34.081 | 71.009 | 82.26 | 142.171 |
470 | 1.18 | 1.461 | 1.852 | 5.134 | 11.583 | 17.064 | 20.581 | 43.12 | 43.119 | 87.414 | 101.318 | 173.96 |
480 | 1.413 | 1.848 | 6.57 | 15.015 | 21.861 | 26.039 | 52.626 | 54.02 | 106.681 | 123.714 | 211.076 | |
490 | 1.681 | 2.316 | 8.325 | 19.26 | 27.726 | 32.631 | 63.708 | 67.858 | 129.14 | 254.098 | ||
500 | 2.876 | 10.447 | 24.458 | 34.83 | 40.523 | 76.536 | 82.525 | 155.139 | 303.627 | |||
510 | 3.541 | 12.995 | 30.771 | 43.367 | 49.9 | 91.288 | 100.738 | 185.034 | 360.285 | |||
520 | 4.325 | 16.028 | 38.373 | 53.541 | 60.955 | 108.15 | 122.03 | 219.201 | 424.712 |
T(K) | p(kg/m3) | |||
20%KCl 80%AlCl3 | 33.33%KCl 66.67%AlCl3 | 50.03%KCl 49.97%AlCl3 | 52.78%KCl 47.22%AlCl3 | |
20%KCl + 80%AlCl3 :
ρ=2025.2−1.0038×T ,Range : 480-540K(38) 33.33%KCl + 66.67%AlCl3 : ρ=1988.9−0.7901×T ,Range : 500-780K(39) 50.03%KCl + 49.97%AlCl3 : ρ=1955.6−0.6622×T ,Range : 740-1040K(40) 66.66%KCl + 33.34%AlCl3 : ρ=1973.4−0.6101×T ,Range : 960-1040K(41) where ρ (kg/m3)is density and T(K)is temperature. | ||||
480 | 1543 | |||
500 | 1523 | 1594 | ||
520 | 1503 | 1578 | ||
540 | 1483 | 1562 | ||
560 | 1547 | |||
580 | 1531 | |||
600 | 1515 | |||
620 | 1499 | |||
640 | 1483 | |||
660 | 1468 | |||
680 | 1452 | |||
700 | 1436 | |||
720 | 1420 | |||
740 | 1404 | 1466 | ||
760 | 1389 | 1452 | ||
780 | 1373 | 1439 | ||
800 | 1426 | |||
820 | 1413 | |||
840 | 1399 | |||
860 | 1386 | |||
880 | 1373 | |||
900 | 1360 | |||
920 | 1346 | |||
940 | 1333 | |||
960 | 1320 | 1388 | ||
980 | 1307 | 1376 | ||
1000 | 1293 | 1363 | ||
1020 | 1280 | 1351 | ||
1040 | 1267 | 1339 |
T(K) | Pvap(kPa) | |||
49.9%KCl + 50.01%AlCl3 | 51.5%KCl + 48.5%AlCl3 | 57.6%KCl + 42.4%AlCl3 | 63.8%KCl + 36.2%AlCl3 | |
49.9%KCl + 50.01%AlCl3:
Pvap=(107.395−5860/T)/760×101.325 ,Range: 870-1070K(42) 51.5%KCl + 48.5%AlCl3: Pvap=(109.2386−7846/T)/760×101.325 ,Range: 910-1070K(43) 57.6%KCl + 42.4%AlCl3: Pvap=(108.943−7634/T)/760×101.325 ,Range: 920-1030K(44) 63.8%KCl + 36.2%AlCl3: Pvap=(108.4231−7212/T)/760×101.325 ,Range: 950-1030K(45) where Pvap is in kPa,unit of temperature is in K. | ||||
870 | 0.613 | |||
880 | 0.72 | |||
890 | 0.867 | |||
900 | 1.027 | |||
910 | 1.2 | 0.547 | ||
920 | 1.413 | 0.68 | 0.587 | |
930 | 1.653 | 0.84 | 0.72 | |
940 | 1.933 | 1.04 | 0.88 | |
950 | 2.24 | 1.267 | 1.08 | 0.907 |
960 | 2.6 | 1.547 | 1.307 | 1.08 |
970 | 3.013 | 1.88 | 1.573 | 1.293 |
980 | 3.466 | 2.28 | 1.893 | 1.547 |
990 | 3.986 | 2.746 | 2.28 | 1.827 |
1000 | 4.573 | 3.293 | 2.72 | 2.173 |
1010 | 5.226 | 3.933 | 3.226 | 2.56 |
1020 | 5.96 | 4.693 | 3.84 | 3 |
1030 | 6.773 | 5.573 | 4.533 | 3.52 |
1040 | 7.679 | 6.599 | ||
1050 | 8.693 | 7.786 | ||
1060 | 9.813 | 9.159 | ||
1070 | 11.052 | 10.732 |
T(K) | p(kg/m3) | ||||||
50%NaCl +40%KCl +10%AlCl3 | 55%NaCl +25%KCl +20%AlCl3 | 60%NaCl +30%KCl +10%AlCl3 | 60%NaCl +20%KCl +20%AlCl3 | 60%NaCl +10%KCl +30%AlCl3 | 65%NaCl +25%KCl +10%AlCl3 | 65%NaCl +10%KCl +25%AlCl3 | |
50%NaCl+40%KCl+10%AlCl3:
ρ=2136−0.923×T ,for T(K)in 500-540K(46) 55%NaCl+25%KCl+20%AlCl3: ρ=2105−0.903×T ,for T(K)in 440-480K(47) 60%NaCl+30%KCl+10%AlCl3: ρ=2096−0.882×T ,for T(K)in 430-480K(48) 60%NaCl+20%KCl+20%AlCl3: ρ=2117−0.97×T ,for T(K)in 430-480K(49) 60%NaCl+10%KCl+30%AlCl3: ρ=2059−0.822×T ,for T(K)in 470-520K(50) 65%NaCl+25%KCl+10%AlCl3: ρ=2059−0.877×T ,for T(K)in 430-480K(51) 65%NaCl+10%KCl+25%AlCl3: ρ=2115−1.02×T ,for T(K)in 960-1170K(52) where unit of density is p(kg/m3) and T is in(K). | |||||||
430 | 1716.7 | 1699.9 | 1681.9 | 1676.4 | |||
440 | 1707.7 | 1707.9 | 1690.2 | 1673.1 | 1666.2 | ||
450 | 1698.7 | 1699.1 | 1680.5 | 1664.4 | 1656.0 | ||
460 | 1689.6 | 1690.3 | 1670.8 | 1655.6 | 1645.8 | ||
470 | 1680.6 | 1681.5 | 1661.1 | 1672.7 | 1646.8 | 1635.6 | |
480 | 1671.6 | 1672.6 | 1651.4 | 1664.4 | 1638.0 | 1625.4 | |
490 | 1656.2 | ||||||
500 | 1674.5 | 1648.0 | |||||
510 | 1665.3 | 1639.8 | |||||
520 | 1656.0 | 1631.6 | |||||
530 | 1646.8 | ||||||
540 | 1637.6 |
T(K) | p(g/cm3) | p(kg/m3) |
ρ=2.59−6.36×10−4(T−273) ; where the units are p(kg/m3),and T(K),in the range of 473-573K.(53) | ||
473 | 2.46 | 2462.8 |
483 | 2.46 | 2456.44 |
493 | 2.45 | 2450.08 |
503 | 2.44 | 2443.72 |
513 | 2.44 | 2437.36 |
523 | 2.43 | 2431 |
533 | 2.42 | 2424.64 |
543 | 2.42 | 2418.28 |
553 | 2.41 | 2411.92 |
563 | 2.41 | 2405.56 |
573 | 2.4 | 2399.2 |
T(K) | μ(cp) | μ(kg/m*s) |
μ=1.23×10−2√Texp(1.21×103T−283) ; where the units areμ(cp),and T(K),within the range of 473-573K.(54) | ||
473 | 155.9932 | 0.15599 |
483 | 114.6464 | 0.11465 |
493 | 86.8344 | 0.08683 |
503 | 67.5008 | 0.0675 |
513 | 53.6699 | 0.05367 |
523 | 43.5235 | 0.04352 |
533 | 35.9132 | 0.03591 |
543 | 30.0916 | 0.03009 |
553 | 25.5594 | 0.02556 |
563 | 21.9752 | 0.02198 |
573 | 19.1002 | 0.0191 |
Single Molten Salt | Binary Molten Salt | Ternary Molten Salt | ||||||||
AlCl3 | ZnCl2 | FeCl3 | NaCl | KCl | NaCl+AlCl3 | KCl+AlCl3 | NaCl+KCl | NaCl+KCl +AlCl3 | NaCl+KCl +ZnCl2 | |
√ : Data obtained from literature;× : No data available from literature | ||||||||||
Density | √ | √ | × | √ | √ | √ | √ | √ | √ | √ |
Viscosity | √ | √ | × | √ | √ | √ | × | √ | × | √ |
Thermal Conductivity | × | × | × | √ | √ | × | × | × | × | × |
Specific Heat Capacity | √ | √ | √ | √ | √ | × | × | × | × | × |
Vapor Pressure | √ | √ | √ | √ | √ | √ | √ | √ | × | × |
Melting Point | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ |