| Project/Area Number |
17560751
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Energy engineering
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| Research Institution | Kyoto University |
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Principal Investigator |
MISHIMA Kaichiro (2006-2007) Kyoto University, Research Reactor Institute, Professor (60027472)
齊藤 泰司 (2005) 京都大学, 原子炉実験所, 助手 (40283684)
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| Co-Investigator(Kenkyū-buntansha) |
SHEN Xiuzhong Kyoto University, Research Reactor Institute, Instructor (20362410)
三島 嘉一郎 京都大学, 原子炉実験所, 教授 (60027472)
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| Project Period (FY) |
2005 – 2007
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| Project Status |
Completed (Fiscal Year 2007)
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| Budget Amount *help |
¥3,550,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2006: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2005: ¥2,100,000 (Direct Cost: ¥2,100,000)
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| Keywords | neutron radiography / boiling heat transfer / liquid-liquid interface / liquid metal / fast breeder reactor / direct contact heat transfer / multiphase flow / visulalization / 液体金属流れ / 鉛ビスマス / 熱交換器 / 自然循環 / 液滴蒸発 / 沸騰熱伝達 |
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| Research Abstract |
Direct contact evaporation of a water droplet was studied in a molten-metal pool. Dynamic behavior of a two-phase bubble evaporating in molten alloy was clearly observed by using high-frame rate neutron radiography. Measurements of drag coefficient of a single two-phase bubble showed Mat the relationship between the rising velocity of a single two-phase bubble in the molten Newton's alloy was not much different from that for an ordinary one. The growth rate of a two-phase bubble was measured to determine the interfacial beat transfer coefficient in a molten alloy-water system. An empirical equation of overall heat transfer coefficient was presented for practical application.
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