Numerical simulation on characteristics of cooling heat transfer and pressure drop of supercritical pressure fluids flowing in a chevron-type plate heat exchanger

Yuki Yamasaki, Naoto Watanabe, Kazushi Miyata, Hideo Mori, Yoshinori Hamamoto, Shuichi Umezawa, Katsuhiko Sugita, Kizuku Kurose

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In industrial fields, heat source over 130°C are widely needed, and for this the development of industrial high-temperature heat pump systems has been promoted. For the heat release process in such the heat pump systems, the authors have studied on cooling heat transfer of refrigerants at supercritical pressures in chevron-type plate heat exchangers (PHEs). In this study, to establish a simulation model which estimates the cooling heat transfer coefficient of supercritical pressure refrigerants flowing in the chevron-type PHEs, a CFD analysis was carried out. The results of this analysis agreed well with the experimental results including the data in pseudocritical region where the physical properties of the refrigerant change rapidly with temperature. From the simulation results, characteristics of temperature distribution and heat flux distribution in the chevron PHE were discussed.

Original languageEnglish
Title of host publicationICR 2019 - 25th IIR International Congress of Refrigeration
EditorsVasile Minea
PublisherInternational Institute of Refrigeration
Pages2798-2804
Number of pages7
ISBN (Electronic)9782362150357
DOIs
Publication statusPublished - 2019
Event25th IIR International Congress of Refrigeration, ICR 2019 - Montreal, Canada
Duration: Aug 24 2019Aug 30 2019

Publication series

NameRefrigeration Science and Technology
Volume2019-August
ISSN (Print)0151-1637

Conference

Conference25th IIR International Congress of Refrigeration, ICR 2019
CountryCanada
CityMontreal
Period8/24/198/30/19

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Condensed Matter Physics

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