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Flow-Boiling Critical Heat Flux Experiments Performed in Reduced GravityPoor understanding of flow boiling in microgravity has recently emerged as a key obstacle to the development of many types of power generation and advanced life support systems intended for space exploration. The critical heat flux (CHF) is perhaps the most important thermal design parameter for boiling systems involving both heatflux-controlled devices and intense heat removal. Exceeding the CHF limit can lead to permanent damage, including physical burnout of the heat-dissipating device. The importance of the CHF limit creates an urgent need to develop predictive design tools to ensure both the safe and reliable operation of a two-phase thermal management system under the reduced-gravity (like that on the Moon and Mars) and microgravity environments of space. At present, very limited information is available on flow-boiling heat transfer and the CHF under these conditions.
Document ID
Document Type
Hasan, Mohammad M.
(NASA Glenn Research Center Cleveland, OH, United States)
Mudawar, Issam
(Purdue Univ. West Lafayette, IN, United States)
Date Acquired
September 7, 2013
Publication Date
June 1, 2005
Publication Information
Publication: Research and Technology 2004
Subject Category
Fluid Mechanics And Thermodynamics
Distribution Limits
Work of the US Gov. Public Use Permitted.
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