雪面反射日射を考慮した追尾式両面太陽光発電 システムに入射する日射量の推定

DOI

書誌事項

タイトル別名
  • Estimation of Incident Solar Radiation on Solar Tracker System with Bifacial Photovoltaics Considering Solar Radiation Reflected from Snow Surface

抄録

We have collaborated with companies to design a solar tracker system with bifacial photovoltaics, which electric power generation to vigorous power demands in snowy climates. Since the Sun’s altitude is low in winter and the ground surface is covered by snow, we assume that the solar irradiance reaching the system is significantly influenced by reflection from the snow surface. In this paper, therefore, we consider theoretical models for the solar radiation reflected from the snow surface. We also calculated the ratio of the solar radiation reflected from the snow surface to the solar irradiance reflecting from inclined surfaces. Since Rayleigh scattering and Mie scattering have particularly important effects, we calculated the wavelength characteristics based on the examination of each parameter. As a result, assuming that the snow surface reflectance is 60%, our calculations were in good agreement with measurements taken from sunrise to sunset. When the sun passes through the meridian, the amount of solar irradiance reflected back from the snow surface was found to be 38% of the solar irradiance incident on inclined surfaces. In addition, the amount of back-reflected solar irradiance was about 22% of the daily integrated solar radiation incident on the top surface.

収録刊行物

キーワード

詳細情報 詳細情報について

  • CRID
    1390001288100172032
  • NII論文ID
    130007529724
  • DOI
    10.14936/tieiej.38.6_39
  • ISSN
    24334472
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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