A Study on the Characteristics of Outside Weather Factors that affect Building Indoor Environment based on the Long-term Observation Data : Part 3-Estimation of Direct and Diffuse Solar Radiation from Measured Global Horizontal Solar Radiation

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  • 長期観測データに基づく建築環境外界気象要素の特性に関する実証的研究 : その3-全日射量から直達日射量・天空日射量の推定
  • チョウキ カンソク データ ニ モトヅク ケンチク カンキョウ ガイカイ キショウ ヨウソ ノ トクセイ ニ カンスル ジッショウテキ ケンキュウ ソノ 3 ゼン ニッシャリョウ カラ チョクタツ ニッシャリョウ テンクウ ニッシャリョウ ノ スイテイ

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One of the authors, of Kajima Corporation, began a long-term observational study in January 1993 as part of IDMP (International Daylight Measurement Programme) of CIE (Commission Internationale de l'Eclairage). The present comprehensive study provides information for interior design by determining correlations among external meteorological factors such as solar radiation, illuminance, luminance, night radiation, temperature, humidity, wind direction and wind velocity. This paper (Part 3) reports estimation of direct and diffuse solar radiation from measured global horizontal solar radiation obtained by using minute-by-minute data of solar radiation for the period of eight years through discussion by solar altitude, by cloud ratio and by cloud ratio in solar altitude.

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