長期観測データに基づく昼光の発光効率に関する実証的研究  [in Japanese] A STUDY ON LUMINOUS EFFICACY OF EACH OF DIRECT, DIFFUSE AND GLOBAL ILLUMINANCE OF DAYLIGHT BASED ON LONG-TERM OBSERVATION DATA  [in Japanese]

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Author(s)

Abstract

As an observatory of the International Daylight Measurement Programme (IDMP) of the Commission Internationale de 1'EcIairage (CIE), one of the authors started measurement in January 1993. Based on minutely data gathered over the past nine years on solar radiation and illuminance, this paper has sought luminous efficacy of each of direct, diffuse and global illuminance of daylight. An estimated equation, which regarded luminous efficacy of daylight as the constant and involution of the corresponding solar radiation volume and coefficient of the involution as the function of solar altitude, was employed. Then, estimated gaps were made clear quantitatively by repeatedly examining luminous efficacy of daylight according to solar altitude and cloud ratio. This paper shows that it is proper to make use of luminous efficacy of daylight in accordance with necessary estimated accuracy.

Journal

  • Journal of Architecture and Planning (Transactions of AIJ)

    Journal of Architecture and Planning (Transactions of AIJ) 67(560), 7-13, 2002

    Architectural Institute of Japan

References:  11

Cited by:  6

Codes

  • NII Article ID (NAID)
    110004658107
  • NII NACSIS-CAT ID (NCID)
    AN10438548
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    1340-4210
  • NDL Article ID
    6340020
  • NDL Source Classification
    ZN1(科学技術--建設工学・建設業)
  • NDL Call No.
    Z16-107
  • Data Source
    CJP  CJPref  NDL  NII-ELS  J-STAGE  AIJ 
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