A Study on Characteristics of Cooling Heat Transfer of Supercritical Pressure Fluids in a Plate Heat Exchanger

Hideo Mori, Shin Nakamura, Fuka Ono, Keishi Kariya, Shuichi Umezawa

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

For the development of industrial heat pump systems supplying a high-temperature heat source over 130°C, experiments were carried out on cooling heat transfer of supercritical pressure fluids flowing in a plate heat exchanger (PHE). Using two refrigerants of HFC134a and HCFC22 as the test fluids, heat transfer coefficient data were obtained at different pressure, flow rate, and heat load conditions. The heat transfer coefficient generally had a maximum in the vicinity of the pseudocritical point and showed seven- to ninefold values compared with tube flow. Based on the measurements, characteristics of cooling heat transfer of supercritical pressure fluids in the PHE were clarified and a correlation of heat transfer coefficient was developed.

Original languageEnglish
Pages (from-to)659-667
Number of pages9
JournalHeat Transfer Engineering
Volume37
Issue number7-8
DOIs
Publication statusPublished - May 23 2016

All Science Journal Classification (ASJC) codes

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

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