scholarly journals Determination of thermo-physical properties and stability testing of high-temperature phase-change materials for CSP applications

2015 ◽  
Vol 139 ◽  
pp. 81-87 ◽  
Author(s):  
Ming Liu ◽  
J.C. Gomez ◽  
C.S. Turchi ◽  
N.H.S. Tay ◽  
W. Saman ◽  
...  
Keyword(s):  
High Temperature ◽  
Physical Properties ◽  
Phase Change ◽  
Phase Change Materials ◽  
High Temperature Phase ◽  
Temperature Phase ◽  
Stability Testing ◽  
Thermo Physical Properties

Research on Expanded Graphite/Nitrate High-Temperature Composite Phase Change Materials

2015 ◽  
Vol 740 ◽  
pp. 11-14 ◽  
Author(s):  
Yue Feng Li
Keyword(s):  
Thermal Conductivity ◽  
High Temperature ◽  
Phase Change ◽  
Phase Change Materials ◽  
Water Solution ◽  
Expanded Graphite ◽  
High Temperature Phase ◽  
Temperature Phase ◽  
Solidification Temperature ◽  
Saturated Water Solution

In order to enhance the thermal conductivity of high-temperature phase change materials (PCMs), expanded graphite (EG) /NaNO3-LiNO3 composite was prepared by the method of eutectic aqueous solution infiltration porous structure of EG. The composites with an EG amount of 10%, 20% and 30% were prepared in the similar way. The results proved that the eutectic was an excellent PCM, for its melting (solidification) temperature was 193.7 (191.7) °C, and its latent heat was 272.6(262.6) kJ/kg. With the increasing in graphite amount, the thermal conductivity of the composite was found to progressively increase with intensifications up to 10. We can conclude that the saturated water solution method was a simple and effective way to strengthen the thermal conductivity of the eutectic.

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