Working Paper Article Version 1 This version is not peer-reviewed

Review on Heat Transfer Enhancement of Phase-change Materials Using Expanded Graphite for Thermal Energy Storage and Thermal Management

Version 1 : Received: 29 July 2020 / Approved: 30 July 2020 / Online: 30 July 2020 (12:23:53 CEST)

How to cite: Wang, X.; Shi, Y.; Zhai, X.; Dong, B.; Wang, Y.; Wang, R.; Sun, S.; Hua, Y. Review on Heat Transfer Enhancement of Phase-change Materials Using Expanded Graphite for Thermal Energy Storage and Thermal Management. Preprints 2020, 2020070721 Wang, X.; Shi, Y.; Zhai, X.; Dong, B.; Wang, Y.; Wang, R.; Sun, S.; Hua, Y. Review on Heat Transfer Enhancement of Phase-change Materials Using Expanded Graphite for Thermal Energy Storage and Thermal Management. Preprints 2020, 2020070721

Abstract

Phase-change materials (PCMs) are particularly attractive for latent heat storage because they provide a high energy storage density at a constant temperature, which corresponds to the phase transition temperature of the material. Various techniques have been introduced to enhance the thermal conductivity of PCMs. Expanded graphite (EG) is a thermal enhancer because of its high thermal conductivity, low density, and chemical inertness. This paper provides a brief introduction of several techniques for heat transfer enhancement and EG preparation. The present review focuses on studies that examined the preparation and characterization of EG/PCM composites, as well as the simulations and applications of EG/PCM composites in thermal management and thermal energy storage systems. , melt-blending, impregnation, and compression methods are used to prepare the binary system which only contains PCMs and EG. Melt-blending, hot-pressing, impregnation, polymerization, sol-gel, and piercing-solidifying incuber methods are used to prepare the ternary system, which contains PCMs, EG, and matrix. EG/PCMs have been used for various applications such as thermal management, thermal energy storage, heat exchanger and building applications. the coupling effects with the other systems are also introduced. The simulation and application data also confirm that EG has heat transfer reinforcement effects in thermal management and thermal energy storage systems.

Subject Areas

expanded graphite; phase change materials; heat transfer enhancement; latent heat; thermal energy storage; thermal management

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.