Effect of Salt Additives on Film Boiling Heat Transfer and Mechanism of Quenching Temperature Rise(<Special Issue>Challenge to Ultimate Cooling Technique Using Phase Change Process)
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- ARAI Takahiro
- Central Research Institute of Electric Power Industry
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- FURUYA Masahiro
- Central Research Institute of Electric Power Industry
Bibliographic Information
- Other Title
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- 塩添加による膜沸騰熱伝達向上効果とクエンチ温度上昇機構(<小特集>究極の除熱性能を目指して)
- 塩添加による膜沸騰熱伝達向上効果とクエンチ温度上昇機構
- シオ テンカ ニ ヨル マク フットウ ネツ デンタツ コウジョウ コウカ ト クエンチ オンド ジョウショウ キコウ
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Abstract
A high-temperature stainless-steel sphere was immersed into various salt solutions to test film boiling behavior at vapor film collapse. The film boiling behavior around the sphere was observed with a digital-video camera. Because salt additives enhanced condensation heat transfer, the observed vapor film was thinner. Surface temperature of the sphere was measured. Salt additives increased the quenching (vapor film collapse) temperature, because frequency of direct contact between sphere surface and coolant increased. Quenching temperature rises with increased salt concentration. The quenching temperature is well correlated with ion molar concentration, which is a number density of ions, regardless of the type of hydrated salts.
Journal
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- TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
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TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 75 (758), 1932-1938, 2009
The Japan Society of Mechanical Engineers
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Details 詳細情報について
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- CRID
- 1390001206295752320
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- NII Article ID
- 110007387059
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- NII Book ID
- AN00187441
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- ISSN
- 18848346
- 03875016
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- NDL BIB ID
- 10473972
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed