2014 Fiscal Year Final Research Report
Radiative Characteristics of Liquid Droplet Radiator for Large Space Structures
Project/Area Number |
24360346
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Aerospace engineering
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Research Institution | Hokkaido University |
Principal Investigator |
TOTANI Tsuyoshi 北海道大学, 工学(系)研究科(研究院), 准教授 (00301937)
|
Project Period (FY) |
2012-04-01 – 2015-03-31
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Keywords | 排熱特性 / 液滴ラジエータ / 液滴 / 排熱器 / ラジエータ / 実効放射率 |
Outline of Final Research Achievements |
One of the candidates to solve the waste heat problem of large space systems such as space solar power systems is a liquid droplet radiator. The data of the effective emissivity of the radiating surface formed by the droplet stream is essential in order to design the liquid droplet radiator. In this study, a technique for obtaining the effective emissivity by a radiative heat transfer experiment and numerical analysis using Monte Carlo method has been established. It is clarified from this approach that the effective emissivities of three kinds of a single droplet flow (droplet diameter: 0.118, 0.106, 0.090 mm, droplet spacing: 0.630, 0.435, 0.212 mm) are 0.073, 0.087, and 0.12, respectively.
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Free Research Field |
宇宙工学
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