Developing adiabatic two phase flow in headers - Distribution issue in parallel flow microchannel heat exchangers

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

Abstract

Heat exchangers with microchannels (hydraulic diameter less than 1mm) are attracting significant attention lately. Performance of these heat exchangers, evaporators mostly, are greatly affected by imperfect distribution of a two-phase fluid to each channel. This paper presents overview of the issue, shows basic option to evenly distribute single and two-phase fluid, and methods to determine maldistribution. Special attention is given to describing two-phase regimes in an adiabatic horizontal header with R134a as a fluid, describing a two-phase map with area of good distribution.

Original languageEnglish (US)
Title of host publicationInternational Conference on Microchannels and Minichannels
EditorsS.G. Kandlikar
Pages207-214
Number of pages8
StatePublished - Dec 1 2003
EventFirst International Conference on Microchannels and Minichannels - Rochester, NY, United States
Duration: Apr 24 2003Apr 25 2003

Publication series

NameInternational Conference on Microchannels and Minichannels
Volume1

Other

OtherFirst International Conference on Microchannels and Minichannels
CountryUnited States
CityRochester, NY
Period4/24/034/25/03

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Hrnjak, P. S. (2003). Developing adiabatic two phase flow in headers - Distribution issue in parallel flow microchannel heat exchangers. In S. G. Kandlikar (Ed.), International Conference on Microchannels and Minichannels (pp. 207-214). (International Conference on Microchannels and Minichannels; Vol. 1).