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

研究成果: ジャーナルへの寄稿学術誌査読

16 被引用数 (Scopus)

抄録

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.

本文言語英語
ページ(範囲)659-667
ページ数9
ジャーナルHeat Transfer Engineering
37
7-8
DOI
出版ステータス出版済み - 5月 23 2016

!!!All Science Journal Classification (ASJC) codes

  • 凝縮系物理学
  • 機械工学
  • 流体および伝熱

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