Condensation heat transfer and pressure drop characteristics of low GWP refrigerants in plate heat exchanger

Oh Jin Kwon, Jae Hoon Jung, Yong Tae Kang

Research output: Contribution to journalConference article

Abstract

Due to the environmental problems such as global warming and the destruction of the ozone layer, the conventional refrigerants such as CFCs(Choloro Fluoro Carbon), HCFCs(Hydro Chloro Fluoro Carbon), and HFCs(Hydro Fluoro Carbon) are supposed to be phased out soon. Therefore, studies on low GWP (Global Warming Potential) refrigerants have been extensively paid attention. In this study, experimental studies are conducted to investigate the characteristics of condensation heat transfer and frictional pressure drop for R-1233zd(E), which is a kind of HCFO (Hydro Chloro Fluoro Olefin) with a GWP value lower than 7. It is found that the average condensation heat transfer coefficient of R-1233zd(E) varies from 0.75 to 1.82 kW/m2K with mean vapor quality range of 0.21 to 0.82. Also the frictional pressure drop ranges 4.66 to 13.54 kPa with same mean vapor quality range. During the partial condensation process, the condensation heat transfer coefficients increase as the heat fluxes increase. However, no significant change in frictional pressure drop is observed while the heat fluxes change.

Original languageEnglish
Pages (from-to)5019-5024
Number of pages6
JournalInternational Heat Transfer Conference
Volume2018-August
Publication statusPublished - 2018 Jan 1
Event16th International Heat Transfer Conference, IHTC 2018 - Beijing, China
Duration: 2018 Aug 102018 Aug 15

Fingerprint

global warming
refrigerants
Global warming
Refrigerants
heat exchangers
pressure drop
Pressure drop
Heat exchangers
Condensation
condensation
heat transfer
Heat transfer
Carbon
heat transfer coefficients
Heat transfer coefficients
Heat flux
heat flux
carbon
Stratospheric Ozone
Vapors

Keywords

  • Condensation heat transfer
  • Low GWP refrigerant
  • Plat heat exchanger
  • Pressure drop
  • R-1233zd(E)

ASJC Scopus subject areas

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

Cite this

Condensation heat transfer and pressure drop characteristics of low GWP refrigerants in plate heat exchanger. / Kwon, Oh Jin; Jung, Jae Hoon; Kang, Yong Tae.

In: International Heat Transfer Conference, Vol. 2018-August, 01.01.2018, p. 5019-5024.

Research output: Contribution to journalConference article

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