Two-phase refrigerant distribution in a two-row/six-pass mini-channel aluminum evaporator

Yousaf Shah, Saleem Abbas, Cheol Hwan Kim, Nae Hyun Kim*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

R-134a distribution in an evaporator having two-row/six-pass configuration was experimentally studied with the inlet quality 0.2 and the outlet superheat 5°C. The mass flux was varied from 63 kg/m2s to 117 kg/m2s. The flow distribution generally followed the expected trend. The insert configuration (multi-hole or a single rectangular hole) affected only nearly passes. Furthermore, better liquid distribution was obtained for the single rectangular hole insert. The effect of tube protrusion depth was only significant at the first pass. As a result, flow distribution correlations obtained from the two-row/four-pass configuration predicted the two-row/six-pass configuration data reasonably well.

Original languageEnglish
Pages (from-to)79-98
Number of pages20
JournalExperimental Heat Transfer
Volume35
Issue number1
DOIs
Publication statusPublished - 2022
Externally publishedYes

Keywords

  • evaporator
  • Flow distribution
  • header
  • R-134
  • six pass
  • two row

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Instrumentation
  • Electrical and Electronic Engineering

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