Condensation of R1234ze(Z) inside a vertical plate-fin heat exchanger

Sho Fukuda, Hongcheng Zhang, Nobuo Takata, Tatsuya Matsumoto, Shigeru Koyama

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

1 Citation (Scopus)

Abstract

In the present study, the condensation of a newly developed low-GWP refrigerant R1234ze(Z) in a vertical plate-fin heat exchanger has been investigated experimentally and theoretically. In the experiment, the local condensation heat transfer characteristics of R1234ze(Z) flowing downward inside a finned vertical path made of SUS 316 were measured with a pressure transducer, some thermocouples and some heat flux sensors. The experimental results were compared with a semi-empirical correlation of mixed convection condensation heat transfer of pure refrigerant inside a vertical smooth tube, which were proposed by Dilao (1993). The experimental results were about two times higher than the semi-empirical correlation. In the theoretical analysis, the conjugate problem of the mixed convection condensation on a finned vertical surface and the heat conduction in a fin was solved numerically. Then, the numerical results on the heat transfer characteristics were compared with the experimental ones. The effects of fin shapes on the heat transfer characteristics were also examined by the present numerical analysis.

Original languageEnglish
Title of host publication24th IIR International Congress of Refrigeration, ICR 2015
PublisherInternational Institute of Refrigeration
Pages1107-1114
Number of pages8
ISBN (Electronic)9782362150128
DOIs
Publication statusPublished - Jan 1 2015
Event24th IIR International Congress of Refrigeration, ICR 2015 - Yokohama, Japan
Duration: Aug 16 2015Aug 22 2015

Publication series

NameRefrigeration Science and Technology
ISSN (Print)0151-1637

Other

Other24th IIR International Congress of Refrigeration, ICR 2015
CountryJapan
CityYokohama
Period8/16/158/22/15

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All Science Journal Classification (ASJC) codes

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

Cite this

Fukuda, S., Zhang, H., Takata, N., Matsumoto, T., & Koyama, S. (2015). Condensation of R1234ze(Z) inside a vertical plate-fin heat exchanger. In 24th IIR International Congress of Refrigeration, ICR 2015 (pp. 1107-1114). (Refrigeration Science and Technology). International Institute of Refrigeration. https://doi.org/10.18462/iir.icr.2015.0361