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Fundamental study on thermoradiative energy conversion for space applications
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- SHIBUYA Hiroto
- Graduate School of Science and Technology, Niigata University
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- NAGUMO Nobuhiro
- Graduate School of Science and Technology, Niigata University
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- KUMAGAI Kio
- Department of Mechanical Engineering, Niigata University
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- SAKURAI Atsushi
- Graduate School of Science and Technology, Niigata University Department of Mechanical Engineering, Niigata University
Description
<p>Spacecraft use photovoltaics as power-generation systems. Although photovoltaics have advantages such as no requirement of fossil fuel or moving parts, a disadvantage is that generating power without sunlight is impossible. Spacecraft require new power-generation systems that do not depend on sunlight to make power generation possible in deep space where sunlight cannot reach. In this study, a thermoradiative (TR) system was investigated. The TR system generates power by thermal radiation from the TR cells to the surrounding environment. The possibility that the TR system would be most effective in spacecraft for which the surrounding temperature is 3 K was considered. Because the power generation of the TR system depends on the amount of radiation from the TR cells, the ideal state was simulated by assuming that the TR cell emits blackbody radiation to obtain the upper limit of the power generation. Furthermore, the effects of output voltage, cell bandgap, and TR cell temperature on the power generation were investigated numerically by using a HgCdTe photodiode, and the results were compared with those for blackbody radiation.</p>
Journal
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- Journal of Thermal Science and Technology
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Journal of Thermal Science and Technology 17 (2), 22-00051-22-00051, 2022
The Japan Society of Mechanical Engineers and The Heat Transfer Society of Japan
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Details 詳細情報について
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- CRID
- 1390292096417761024
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- ISSN
- 18805566
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- OpenAIRE
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- Abstract License Flag
- Disallowed