Spectrally Controlled Thermal Radiation Based on Surface Microstructures for High-Efficiency Solar Thermophotovoltaic system

Asaka Kohiyama, Makoto Shimizu, Hiroaki Kobayashi, Fumitada Iguchi, Hiroo Yugami

研究成果: Conference article査読

6 被引用数 (Scopus)

抄録

Thermophotovoltaic (TPV) system is expected to generate electrical power from various heat sources. One of the key devices of TPV system is spectrally control thermal emitters. The performance is not sufficient to achieve high efficient TPV systems. In this study, we developed new type spectral selective emitters with closed-end surface microcavity array. The simulated spectral thermal radiation band width is only 70nm and Q-value=26.4. This Q-value is 5 times larger than the conventional open-end microcavity emitters. The design of Solar-TPV system which is driven by concentrated solar energy using refractory metal emitters with multilayer coating. The estimated system efficiency and electric power density using the experimentally obtained spectral property of the selective emitters is 16.6% and 2.9W/cm2, respectively.

本文言語English
ページ(範囲)517-523
ページ数7
ジャーナルEnergy Procedia
57
DOI
出版ステータスPublished - 2014
イベント2013 ISES Solar World Congress, SWC 2013 - Cancun, Mexico
継続期間: 2013 11 32013 11 7

ASJC Scopus subject areas

  • Energy(all)

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