The Direct Contact Condensation of Steam in a Pool at Low Mass Flux
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概要
- 論文の詳細を見る
The direct contact condensation of steam at low mass flux (in the chugging region) and the pressure oscillation induced by steam condensation were investigated and analyzed. During the experiment, the steam was discharged into a square subcooled water pool in the horizontal direction. The main experimental parameters were the steam mass flux in the range of 10–80 kg/m2·s and the subcooled water temperature in the range of 30–80°C. Also, two different nozzles (5/8, 6/8 inch) were used. In the chugging region, the high pressure pulses were generated with relatively low frequency. The frequency was little affected by the subcooled water temperature, but increased with increasing steam mass flux. A critical value of steam mass flux was found where the pressure pulse generation rate increased suddenly. This critical value for the 5/8 inch nozzle was found to be lower than that for the 6/8 inch nozzle. The pressure pulse was observed to be generated on the occurrence of sudden condensation of the steam bubble which was detached from the nozzle exit by the necking phenomenon.
- 社団法人 日本原子力学会の論文
- 2003-10-25
著者
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LEE Young
Department of Food Science and Nutrition, Pusan National University
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Kim Moo
Department Of Chemical Engineering Dong-a University
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Youn Deok
Department Of Mechanical Engineering Pohang University Of Science And Technology
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PARK Jong
Korea Ginseng and Tobacco Research Institute
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Ko Kyung
Department Of Materials Science And Engineering Ajou University
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Ko Kyung
Department Of Mechanical Engineering Pohang University Of Science And Technology
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Lee Young
Department Of Aerospace Information Engineering The Konkuk University
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BAE Youn
Korea Atomic Energy Research Institute,
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Bae Youn
Korea Atomic Energy Research Institute
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Park Jong
Korea Advanced Institute Of Science And Technology
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Park Jong
Korea Atomic Energy Research Institute
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Lee Young
Department Of Mechanical Engineering Pohang University Of Science And Technology
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Kim Moo
Department of Cardiology, Dong-A University Hospital
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