Thermal and hydraulic performance of sinusoidal corrugated plate heat exchanger for low temperature lift heat pump

Hoseong Lee, Yunho Hwang, Reinhard Radermacher, Ho Hwan Chun

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Thermal and hydraulic performance of a sinusoidal corrugated plate heat exchanger (PHX) was investigated for the application of a low temperature lift heat pump (LTLHP), which requires unique operating conditions. The water-side heat transfer coefficient and pressure drop of the PHX were obtained through the experimental test. The refrigerant-side heat transfer performance was investigated by varying several parameters. The PHX performance was poor due to low refrigerant mass flux. The PHX needs better balance in two fluids for the LTLHP application. From the current study, it is concluded that the conventional PHX applied for the LTLHP application is limited by two main factors: a large pressure drop on the water-side due to corrugated shape, and a low heat transfer performance due to the low refrigerant-side heat transfer performance. In order to address these drawbacks, heat exchanger designs must be improved by optimizing its geometry and flow area asymmetrically for each fluid.

Original languageEnglish
Pages (from-to)689-700
Number of pages12
JournalInternational Journal of Refrigeration
Volume36
Issue number3
DOIs
Publication statusPublished - 2013 May 1
Externally publishedYes

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Keywords

  • Corrugated
  • Heat pump
  • Low temperature lift
  • Plate heat exchanger

ASJC Scopus subject areas

  • Building and Construction
  • Mechanical Engineering

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