Proceedings of the Korean Society of Propulsion Engineers Conference (한국추진공학회:학술대회논문집)
- 2004.03a
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- Pages.657-664
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- 2004
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- 1975-342X(pISSN)
Experimental study of the frost formation on the cryogenic flat plate with temperature distribution
- Fujimatsu, Kiyoto (University of Tokyo Department of Aeronautics and Astronautics) ;
- Tanatsugu, Nobuhiro (University of Tokyo Department of Aeronautics and Astronautic) ;
- Sato, Tetsuya (University of Tokyo Department of Aeronautics and Astronautics)
- Published : 2004.03.01
Abstract
In this study, a fundamental experiment was carried out to investigate the frost formation on a cryogenic flat plate with/without temperature distribution from 230K to 160K under the convective flow. The effects of mixing ethanol as a condensable substance were also researched. From the test results, when surface temperature at the upstream is 230K, mass flux is high. On the other hand, when surface temperature at the downstream is 160K, mass flux is low. The degree of improvement to restrain frost formation by ethanol mixing is relatively larger at the upstream than at the downstream.