2009 Fiscal Year Final Research Report
Control of Degree of Supercooling by Controlling Wettability
| Project/Area Number |
19560853
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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 | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
HIRANO Satoshi National Institute of Advanced Industrial Science and Technology, エネルギー技術研究部門, 研究グループ長 (60357861)
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| Project Period (FY) |
2007 – 2009
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| Keywords | エネルギー輸送・貯蔵 / 結晶制御 / 相変化蓄熱材 / 過冷却 / 濡れ性 |
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| Research Abstract |
Effective thermal energy storage is essential for effective use of solar heat, industrial waste heat, and urban waste heat. Latent heat thermal energy storage uses the characteristic that materials release heat during the change from liquid to solid. This work aims at control of nucleating temperatures of materials by controlling wettability. The influences of insoluble particles in the melt of several kinds of representative phase change materials (PCMs), mass of the PCMs that are filled up in storage capsules, and contact angles of the PCMs on the capsules, on the maximum degree of supercooling were investigated. From the experiments, control effect of wettability on the starting temperature of solidification was evaluated.
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