Expanded graphite for thermal conductivity and reliability enhancement and supercooling decrease of MgCl2⋅6H2O phase change material
Source abstract
Abstract
Abstract Expanded graphite (EG) is considered as a promising supporter for phase change material (PCM) due to its unique porous structure and excellent heat transfer ability. In the study, EG with different mass fractions (9 wt.%, 13 wt.%, 16.67 wt.%, and 20 wt.%) was respectively blended with MgCl 2·6H2 O. The thermal conductivity data of composite PCMs with 9 wt.%, 13 wt.%, 16.67 wt.%, and 20 wt.% of EG was respectively measured to be 0.942 W/m K, 1.053 W/m K, 1.354 W/m K and 1.658 W/m K. DSC analysis showed that 16.67 wt.% of EG decreased the degree of supercooling by 29.4 °C and that the addition of 3.0 wt.% SrCO 3 further decreased the degree of supercooling by 17.9 °C. The maximum encapsulation weight percentage of MgCl2·6H2O reached 83.33 wt.% after 30 phase change cycles without significantly reducing its latent heat value, exhibiting the relatively stable thermal reliability.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Phase Change Materials Research · Adsorption and Cooling Systems · Solar Thermal and Photovoltaic Systems
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (29)
Show source-provided references
1. Energy storage: applications and challenges10.1016/j.solmat.2013.08.015 ↗
2. Thermal conductivity enhancement of polyethylene glycol/expanded vermiculite shape-stabilized composite phase change materials with silver nanowire for thermal energy storage10.1016/j.cej.2016.03.068 ↗
3. A review for phase change materials (PCMs) in solar absorption refrigeration systems10.1016/j.rser.2017.03.070 ↗
4. Preparation and performances of bulk porous Al foams impregnated with phase-change-materials for thermal storage10.1016/j.pnsc.2012.05.004 ↗
5. Thermophysical characterization of MgCl2 center dot 6H(2)O, xylitol and erythritol as phase change materials (PCM) for latent heat thermal energy storage (LHTES)10.3390/ma10040444 ↗
6. One thousand thermal cycles of magnesium chloride hexahydrate as a promising PCM for indoor solar cooking10.1016/j.enconman.2010.10.043 ↗
7. Thermal characteristics of magnesium nitrate hexahydrate and magnesium chloride hexahydrate mixture as a phase change material for effective utilization of urban waste heat10.1016/j.applthermaleng.2003.09.003 ↗
8. Enhancement of heat transfer by inserting a metal matrix into a phase change material10.1080/10407789608913832 ↗
9. Fast thermal cycling of acetanilide and magnesium chloride hexahydrate for indoor solar cooking10.1016/j.enconman.2009.08.020 ↗
10. Enhanced thermal properties of Li2CO3-Na2CO3-K2CO3 nanofluids with nanoalumina for heat transfer in high-temperature CSP systems10.1007/s10973-016-6050-1 ↗
11. Thermal conductivity improvement of stearic acid using expanded graphite and carbon fiber for energy storage applications10.1016/j.renene.2006.11.011 ↗
12. Heat transfer enhancement of fatty acids when used as PCMs in thermal energy storage10.1002/er.1348 ↗
13. A capric-palmitic-stearic acid ternary eutectic mixture/expanded graphite composite phase change material for thermal energy storage10.1016/j.compositesa.2016.04.024 ↗
14. Preparation and characterization of KNO3/diatomite shape-stabilized composite phase change material for high temperature thermal energy storage10.1016/j.jmst.2016.02.011 ↗
15. Thermal properties and reliability of eutectic mixture of stearic acid-acetamide as phase change material for latent heat storage10.1016/j.jct.2016.11.022 ↗
16. Preparation and thermal reliability of N-butyl stearate/methyl palmitate composite phase change material10.1007/s10973-017-6112-z ↗
17. A review on supercooling of phase change materials in thermal energy storage systems10.1016/j.rser.2016.11.272 ↗
18. Preparation and thermal characterization of expanded graphite/paraffin composite phase change material10.1016/j.carbon.2010.03.030 ↗
19. Preparation and thermal properties of polyethylene glycol/expanded graphite blends for energy storage10.1016/j.apenergy.2008.12.004 ↗
20. Dual-level packaged phase change materials – thermal conductivity and mechanical properties10.1016/j.solmat.2017.05.030 ↗
21. Preparation and thermal energy storage properties of LiNO3-KCl-NaNO3/expanded graphite composite phase change material10.1016/j.solmat.2017.05.035 ↗
22. A review on phase change energy storage: materials and applications10.1016/j.enconman.2003.09.015 ↗
23. Largely improved thermal conductivity of HDPE/expanded graphite/carbon nanotubes ternary composites via filler network-network synergy10.1016/j.compositesa.2017.04.001 ↗
24. Preparation and characterization of polyethylene glycol/active carbon composites as shape-stabilized phase change materials10.1016/j.solmat.2010.09.033 ↗
25. Pore structure modified diatomite-supported PEG composites for thermal energy storage10.1038/srep32392 ↗
26. Study of magnesium chloride hexahydrate as heat storage material10.1016/j.tca.2012.07.021 ↗
27. Phase change materials for energy storage nucleation to prevent supercooling10.1016/0927-0248(92)90116-7 ↗
28. Solar energy storage in phase change materials: first-principles thermodynamic modeling of magnesium chloride hydrates10.1021/jp411461m ↗
29. Thermal characteristics of expanded perlite/paraffin composite phase change material with enhanced thermal conductivity using carbon nanotubes10.1016/j.enconman.2016.12.053 ↗