An investigation of evaporation, boiling, and heat transport performance in pulsating heat pipe

Qingjun Cai*, Reh Lin Chen, Chung-Lung Chen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

18 Scopus citations

Abstract

Pulsating heat pipe (PHP) is a latest development in heat pipe technology. In this paper, evaporation and boiling phenomena are investigated, and liquid heat transport performance in a PHP is measured at different fill ratio as well. The observation results show that phase change in the evaporator may occur by two different mechanisms: 1) evaporation and boiling in thin liquid film on the evaporator wall, 2) generation and collapse of tiny bubbles suspended in the liquid slug. Meanwhile, the temperature measurement indicates that temperature gradient between the evaporator and the condenser is related to liquid latent heat, density, viscosity, and mass filled in.

Original languageEnglish
Title of host publicationHeat Transfer
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages99-104
Number of pages6
Volume372
Edition7
ISBN (Print)079183638X, 9780791836385
DOIs
StatePublished - 1 Dec 2002
Event2002 ASME International Mechanical Engineering Congress and Exposition - New Orleans, LA, United States
Duration: 17 Nov 200222 Nov 2002

Publication series

NameAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
PublisherAmerican Society of Mechanical Engineers(ASME)
ISSN (Print)0272-5673

Conference

Conference2002 ASME International Mechanical Engineering Congress and Exposition
CountryUnited States
CityNew Orleans, LA
Period17/11/0222/11/02

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