Thermal Properties of Graphene Enhanced Composite Phase Change Materials for Energy Storage

Abstract

Abstract: Thermal enhanced composite phase change materials for energy storage (TCPCMs) were fabricated by the spontaneous infiltration treatment, with adding graphene and iron tailing porous ceramics as the carrier. Based on the tests of thermal properties and stability, TCPCMs with thermal conductivity of 0.41~0.59 W/(m·K), latent heat of 69~120 kJ/kg, and good stability are obtained by adjusting the porosity of the carrier. Thethermal conductivity of TCPCMs has a linear relationship to the porosity of ceramic carrier by fitting test data. Besides, the latent heat and thermal conductivity of TCPCMs decrease by 3.2% and 16.7% after 100 times melting/solidification cycles. This research provides a new idea for the application of solid iron tailings in thermal and energy storage materials.

Key words: paraffin, composite phase change material for energy storage, iron tailing porous ceramics, grapheme, thermal property, thermal stability

CLC Number:

TU523

LI Runfeng, LIU Yanjun, TU Yubo, WANG Linjun, WEN Xiaoqing, REN Lei. Thermal Properties of Graphene Enhanced Composite Phase Change Materials for Energy Storage[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2022, 41(7): 2542-2548.

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