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This paper aims to study the application of graphene composite materials in improving the thermal conductivity of solid heat storage materials, focusing on the preparation process and heat storage performance of graphene composite materials. High quality graphene powder was prepared by supercritical CO2 stripping technology, and then functionalized by ball milling assisted agitation, and graphene composite materials were successfully prepared. Finally, the three-dimensional heat transfer and flow numerical model and the numerical simulation analysis of the actual heat storage and recovery process are established to verify the effectiveness of the graphene composite. The experimental results show that the graphene composite material can effectively improve the thermal conductivity of the heat storage medium, which is conducive to improving the efficiency of the heat storage system, and also provides a theoretical basis for the subsequent construction of low-cost and efficient heat storage system. We recognize the potential of graphene composites and the significant social and economic value that will be brought by the widespread application of this technology. In this paper, a universal method is proposed to improve the thermal conductivity of solid matrix, which provides a new idea for the construction of low-cost and efficient heat storage system. It is expected to promote the development of the field of renewable energy, and has important technical contributions and social significance.

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The Synthesis and Thermal Storage Performance Simulation of Graphene Composite Phase Change Materials

  • 章节

  • 发表日期：

    2025年

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  • Li-li Wei,
  • Li Guo,
  • Wen-hua Lin,
  • Yi-ming Meng,
  • Sheng-li Zhang,
  • Meng Liu,
  • Zi-ao Zhang,
  • Shao-sen Bian

摘要

This paper aims to study the application of graphene composite materials in improving the thermal conductivity of solid heat storage materials, focusing on the preparation process and heat storage performance of graphene composite materials. High quality graphene powder was prepared by supercritical CO2 stripping technology, and then functionalized by ball milling assisted agitation, and graphene composite materials were successfully prepared. Finally, the three-dimensional heat transfer and flow numerical model and the numerical simulation analysis of the actual heat storage and recovery process are established to verify the effectiveness of the graphene composite. The experimental results show that the graphene composite material can effectively improve the thermal conductivity of the heat storage medium, which is conducive to improving the efficiency of the heat storage system, and also provides a theoretical basis for the subsequent construction of low-cost and efficient heat storage system. We recognize the potential of graphene composites and the significant social and economic value that will be brought by the widespread application of this technology. In this paper, a universal method is proposed to improve the thermal conductivity of solid matrix, which provides a new idea for the construction of low-cost and efficient heat storage system. It is expected to promote the development of the field of renewable energy, and has important technical contributions and social significance.