Development of PCM-based shell-and-tube thermal energy storages for efficient EV thermal management

Hyuntae Kim, Jangpyo Hong, Hongseok Choi, Jinwoo Oh, Hoseong Lee

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Electric vehicles face significant challenges in cold climates. Battery efficiency decreases, and cabin heating demands additional electricity, which diminishes the energy available for vehicle propulsion. In this context, a thermal energy storage system based on a phase change material (PCM) with diverse designs of shell-and-tube heat exchangers is investigated to meet cabin thermal load demands independently. A simulation model for a two-phase PCM heat exchanger is developed and validated using experimental data. The comparison revealed average temperature differences of 1.59 K and 1.61 K for the melting and solidification processes, respectively. Compared to the single tube design, the heat transfer performance of finned multitube design improved the melting process and reduced the melting time by 92.9% and reduced the solidification time by 87.6%. The average heat transfer rate of the finned multitube during the solidification process is 2.9 times higher than that of the single tube. Additionally, the use of PCM incorporating different types of nanomaterials is explored to enhance the melting and solidification performance through increased thermal conductivity. The graphene nanoplatelet PCM exhibited the most substantial improvements in thermal conductivity, resulting in melting and solidification time reductions by 54.2% and 48.9%, respectively.

Original languageEnglish
Article number107401
JournalInternational Communications in Heat and Mass Transfer
Volume154
DOIs
Publication statusPublished - 2024 May

Bibliographical note

Publisher Copyright:
© 2024 Elsevier Ltd

Keywords

  • Electric vehicle
  • Nanoparticles
  • Phase change material
  • Thermal energy storage
  • Thermal management

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • General Chemical Engineering
  • Condensed Matter Physics

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