Thermodynamic properties. The appearance change actual should possess:3
Melting temperature in the adapted operating temperature range
Top abeyant calefaction of admixture per assemblage volume
Top specific heat, top body and top thermal conductivity
Baby aggregate changes on appearance transformation and baby breath burden at operating temperatures to abate the ascendancy problem
Congruent melting
Kinetic properties
Top nucleation amount to abstain supercooling of the aqueous phase
Top amount of clear growth, so that the arrangement can accommodated demands of calefaction accretion from the accumulator system
Chemical properties
Chemical stability
Complete capricious freeze/melt cycle
No abasement afterwards a ample amount of freeze/melt cycle
Non-corrosiveness, non-toxic, non-flammable and non-explosive materials
Economic properties
Low cost
Availability
edit Thermophysical backdrop of called PCMs
Material
Organic
PCM
Melting
point
oC
Heat of
fusion
kJ·kg−1
Heat of
fusion
MJ·m−3
cp
solid
kJ·kg−1·K−1
cp
liquid
kJ·kg−1·K−1
ρ
solid
kg·m−3
ρ
liquid
kg·m−3
k
solid
W·m−1·K−1
VHC
solid
kJ·m−3·K−1
VHC
liquid
kJ·m−3·K−1
e
solid
J·m−2·K−1·s−1/2
Cost
USD·kg−1
Water No 0 333.6 319.8 2.05 4.186 917 1,000 1.64-2.225 1,880 4,186 1,890 0.0031256
Lauric acerbic Yes78 44.29 211.6 197.7 1.76 2.27 1,007 862 ? 1,772 1,957 ? 1.6 1011
TME(63%w/w)+H2O(37%w/w) Yes78 29.8 218.0 240.9 2.75 3.58 1,120 1,090 ? 3,080 3,902 ? ?
Mn(NO3)2·6H2O+MnCl2·4H2O(4%w/w) No1213 15–25 125.9 221.8 2.34 2.78 1,795 1,728 ? 4,200 4,804 ? ?
Na2SiO3·5H2O No1213 48 267.0 364.5 3.83 4.57 1,450 1,280 0.103−0.12814 5,554 5,850 801 8.0415
Aluminium No 660.32 396.9 1,007.2 0.8969 ? 2,700 2,375 2371617 2,422 ? 23,960 2.0462618
Copper No 1,084.62 208.7 1,769.5 0.3846 ? 8,940 8,020 40119 3,438 ? 37,130 6.8125620
Gold No 1,064.18 63.72 1,166.3 0.129 ? 19,300 17,310 31821 2,491 ? 28,140 34,297.820
Iron No 1,538 247.3 1,836.6 0.4495 ? 7,874 6,980 80.422 3,539 ? 16,870 0.324823
Lead No 327.46 23.02 253.2 0.1286 ? 11,340 10,660 35.324 1,459 ? 7,180 2.115120
Lithium No 180.54 432.2 226.0 3.5816 ? 534 512 84.825 1,913 ? 12,740 62.216426
Silver No 961.78 104.6 1,035.8 0.235 ? 10,490 9,320 42927 2,465 ? 32,520 492.52420
Titanium No 1,668 295.6 1,273.5 0.5235 ? 4,506 4,110 21.928 2,359 ? 7,190 8.046929
Zinc No 419.53 112.0 767.5 0.3896 ? 7,140 6,570 11630 2,782 ? 17,960 2.1573520
Volumetric calefaction accommodation (VHC) J·m−3·K−1
VHC = \rho\cdot c_p
Thermal Inertia (I) = Thermal effusivity (e) J·m−2·K−1·s−1/2
I = \sqrt{k\cdot\rho\cdot c_p} = e = {(k\cdot\rho\cdot c_p)}^{1/2}
Melting temperature in the adapted operating temperature range
Top abeyant calefaction of admixture per assemblage volume
Top specific heat, top body and top thermal conductivity
Baby aggregate changes on appearance transformation and baby breath burden at operating temperatures to abate the ascendancy problem
Congruent melting
Kinetic properties
Top nucleation amount to abstain supercooling of the aqueous phase
Top amount of clear growth, so that the arrangement can accommodated demands of calefaction accretion from the accumulator system
Chemical properties
Chemical stability
Complete capricious freeze/melt cycle
No abasement afterwards a ample amount of freeze/melt cycle
Non-corrosiveness, non-toxic, non-flammable and non-explosive materials
Economic properties
Low cost
Availability
edit Thermophysical backdrop of called PCMs
Material
Organic
PCM
Melting
point
oC
Heat of
fusion
kJ·kg−1
Heat of
fusion
MJ·m−3
cp
solid
kJ·kg−1·K−1
cp
liquid
kJ·kg−1·K−1
ρ
solid
kg·m−3
ρ
liquid
kg·m−3
k
solid
W·m−1·K−1
VHC
solid
kJ·m−3·K−1
VHC
liquid
kJ·m−3·K−1
e
solid
J·m−2·K−1·s−1/2
Cost
USD·kg−1
Water No 0 333.6 319.8 2.05 4.186 917 1,000 1.64-2.225 1,880 4,186 1,890 0.0031256
Lauric acerbic Yes78 44.29 211.6 197.7 1.76 2.27 1,007 862 ? 1,772 1,957 ? 1.6 1011
TME(63%w/w)+H2O(37%w/w) Yes78 29.8 218.0 240.9 2.75 3.58 1,120 1,090 ? 3,080 3,902 ? ?
Mn(NO3)2·6H2O+MnCl2·4H2O(4%w/w) No1213 15–25 125.9 221.8 2.34 2.78 1,795 1,728 ? 4,200 4,804 ? ?
Na2SiO3·5H2O No1213 48 267.0 364.5 3.83 4.57 1,450 1,280 0.103−0.12814 5,554 5,850 801 8.0415
Aluminium No 660.32 396.9 1,007.2 0.8969 ? 2,700 2,375 2371617 2,422 ? 23,960 2.0462618
Copper No 1,084.62 208.7 1,769.5 0.3846 ? 8,940 8,020 40119 3,438 ? 37,130 6.8125620
Gold No 1,064.18 63.72 1,166.3 0.129 ? 19,300 17,310 31821 2,491 ? 28,140 34,297.820
Iron No 1,538 247.3 1,836.6 0.4495 ? 7,874 6,980 80.422 3,539 ? 16,870 0.324823
Lead No 327.46 23.02 253.2 0.1286 ? 11,340 10,660 35.324 1,459 ? 7,180 2.115120
Lithium No 180.54 432.2 226.0 3.5816 ? 534 512 84.825 1,913 ? 12,740 62.216426
Silver No 961.78 104.6 1,035.8 0.235 ? 10,490 9,320 42927 2,465 ? 32,520 492.52420
Titanium No 1,668 295.6 1,273.5 0.5235 ? 4,506 4,110 21.928 2,359 ? 7,190 8.046929
Zinc No 419.53 112.0 767.5 0.3896 ? 7,140 6,570 11630 2,782 ? 17,960 2.1573520
Volumetric calefaction accommodation (VHC) J·m−3·K−1
VHC = \rho\cdot c_p
Thermal Inertia (I) = Thermal effusivity (e) J·m−2·K−1·s−1/2
I = \sqrt{k\cdot\rho\cdot c_p} = e = {(k\cdot\rho\cdot c_p)}^{1/2}
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