HEAT TRANSFER IN MICROCHANNEL HEAT EXCHANGER WITH ENHANCED SURFACE STRUCTURE

Fadi Alnaimat, Bobby Mathew, Saeed Al Nuaimi

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

Abstract

A simulation-based study is carried out on a counter-flow minichannel heat exchangers with smooth and staggered pin-fins. The heat exchangers consist of two layers of hot and cold fluids. Each layer contained 10 minichannels with width of 2 mm and length of 100 mm; the height of the minichannel is 2 mm and the spacing between each minichannel is 0.5 mm. The heat exchanger is studied with water-water fluids. The investigation is carried out for different Reynolds numbers between 150 and 2000. The effectiveness is determined using the inlet and outlet temperatures of the fluids. Based on the investigation, it is observed that increasing Reynolds number decreases the effectiveness, and increases the overall heat transfer coefficient. It is also observed increasing Reynolds number decreases the friction factor. It was clearly observed that the heat transfer rate is higher for pin-fin minichannel compared to smooth channel. It is also noted that overall friction factor in pin-fin minichannel is higher than that in smooth channel.

Original languageEnglish
Title of host publicationFluids Engineering; Heat Transfer and Thermal Engineering
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791886700
DOIs
Publication statusPublished - 2022
EventASME 2022 International Mechanical Engineering Congress and Exposition, IMECE 2022 - Columbus, United States
Duration: Oct 30 2022Nov 3 2022

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume8

Conference

ConferenceASME 2022 International Mechanical Engineering Congress and Exposition, IMECE 2022
Country/TerritoryUnited States
CityColumbus
Period10/30/2211/3/22

Keywords

  • heat exchanger
  • heat transfer coefficient
  • microchannel
  • pressure drop

ASJC Scopus subject areas

  • Mechanical Engineering

Fingerprint

Dive into the research topics of 'HEAT TRANSFER IN MICROCHANNEL HEAT EXCHANGER WITH ENHANCED SURFACE STRUCTURE'. Together they form a unique fingerprint.

Cite this