When heat fluxes and heat transport exceed 100 W/cm2, heat transfer efficiencies decrease rapidly. Experimental work will be presented exploring how micro jet arrays and structured surfaces can be used to increase heat transfer efficiency. Using water, ethanol, and HFE-7000 as working fluids, the effect of jet momentum, subcooling temperature and surface wetting are experimentally investigated on 1cm2 smooth and structured surfaces. From results obtained so far, heat transfer efficiency increases with increasing surface tension (decreasing surface wetting) with micro-jet arrays. Further, existing correlations for two-phase jet impingement cannot predict the heat transfer performance with acceptable accuracy as they do not account for surface wetting characteristics.
ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference
July 8–12, 2007
Vancouver, British Columbia, Canada
Conference Sponsors:
- Heat Transfer Division
ISBN:
0-7918-4276-2
PROCEEDINGS PAPER
Effect of Jet Arrays and Structured Surfaces on Two-Phase Impingement Heat Transfer
Xin Feng
,
Xin Feng
University of Missouri, Columbia, MO
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James E. Bryan
James E. Bryan
University of Missouri, Columbia, MO
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Author Information
Xin Feng
University of Missouri, Columbia, MO
James E. Bryan
University of Missouri, Columbia, MO
Paper No:
HT2007-32864, pp. 367-373; 7 pages
Published Online:
August 24, 2009
Citation
Feng, Xin, and Bryan, James E. "Effect of Jet Arrays and Structured Surfaces on Two-Phase Impingement Heat Transfer." Proceedings of the ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference. ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference, Volume 3. Vancouver, British Columbia, Canada. July 8–12, 2007. pp. 367-373. ASME. https://doi.org/10.1115/HT2007-32864
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