| Project/Area Number |
62550141
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Thermal engineering
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| Research Institution | Okayama University (1989)
Kitami Institute of Technology (1987-1988) |
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Principal Investigator |
INABA Hideo OKAYAMA UNIVERSITY, FACULTY OF ENGINEERING, PROFESSOR, 工学部, 教授 (40133805)
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| Co-Investigator(Kenkyū-buntansha) |
MIURA Setuo KITAMI INSTITUTE OF TECHNOLOGY, FACULTY OF ENGINEERING, ASSISTANT, 工学部, 助手 (20113714)
BABA Hiromu KITAMI INSTITUTE OF TECHNOLOGY, FACULTY OF ENGINEERING, ASSISTANT, 工学部, 助手 (50003190)
OIWAKE Shigeyoshi KITAMI INSTITUTE OF TECHNOLOGY, FACULTY OF ENGINEERING, PROFESSOR, 工学部, 教授 (20003155)
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| Project Period (FY) |
1987 – 1989
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| Project Status |
Completed (Fiscal Year 1989)
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| Budget Amount *help |
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1989: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1988: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1987: ¥1,100,000 (Direct Cost: ¥1,100,000)
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| Keywords | Snow Melting by Solar Radiation / Solar Radiative Absorption Black Material / Water Saturation / Snow Melting Rate / 日射量 |
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| Research Abstract |
The melting behavior of a snow layer was investigated experimentally for the case where the snow layer was melted from the upper surface by the aid of solar radiative absorption material ( Black Calium Carbonate Powder ). The experiments were carried out under various factors of solar radiative absorption material density, environmental temperature, solar radiation intensity and snow density. It was clarified that the optimum density of the absorption material existed for the enhancement of the snow layer melting. in the low density of the absorption material, the appearance of snow surface due to the gathering effect of the absorption material brought the decrease of snow melting rate, on the other hand in the high density of the absorption material, the snow melting rate was decreased with an increase of thermal insulation effect of it. The useful non-dimensional correlation equations for the snow meting were derived in accordance with various parameter's ranges.
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