Experimental investigations of the single-phase flow distribution in brazed plate heat exchangers and its impact on the heat exchanger

Wenzhe Li, Pega Hrnjak

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

Abstract

Maldistribution of fluid among parallel channels is one of the main issues in applications of brazed plate heat exchangers (BPHEs). This paper presents an experimental investigation of the single-phase flow distribution in BPHEs and its impact on the heat exchanger performance. In the experiments, water is used as the working fluid on both sides. Probes are placed into the headers of the BPHEs to measure the pressure change along the headers, as well as the pressure drop and temperature change across different channels. The results show that the maldistribution is more significant as the number of plates and total mass flow rate increase. The entrance effect would decrease the flow rate in first several channels. The maldistribution in channel flow rate results in the non-uniformity of the channel heat capacity.

Original languageEnglish (US)
Title of host publicationICR 2019 - 25th IIR International Congress of Refrigeration
EditorsVasile Minea
PublisherInternational Institute of Refrigeration
Pages2746-2753
Number of pages8
ISBN (Electronic)9782362150357
DOIs
StatePublished - Jan 1 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

Keywords

  • Brazed Plate Heat Exchangers
  • Distribution
  • Single-phase

ASJC Scopus subject areas

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

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