Improvement of thermal characteristics of latent heat thermal energy storage units using carbon-fiber brushes: Experiments and modeling

Jun Fukai, Yuichi Hamada, Yoshio Morozumi, Osamu Miyatake

Research output: Contribution to journalArticle

128 Citations (Scopus)

Abstract

Brushes made of carbon fibers with a high thermal conductivity are inserted on the shell side of a heat exchanger to enhance the conductive heat transfer rates in phase change materials. The experimental results show that the brushes essentially improve the heat exchange rate during the charge and discharge processes even when the volume fractions of the fibers are about one percent. A three-dimensional model describing the heat transfer in the heat exchanger is numerically solved. The model predicts well the experimental outlet fluid temperatures and the local temperatures in the composite.

Original languageEnglish
Pages (from-to)4513-4525
Number of pages13
JournalInternational Journal of Heat and Mass Transfer
Volume46
Issue number23
DOIs
Publication statusPublished - Nov 2003

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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