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BS EN 61725:1997 Analytical expression for daily solar profiles

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This procedure provides a normative equation for analytically deriving a set of data points or a curve of irradiance versus time of day for a synthetic solar day. The coefficients of the normative equation for the analytical solar irradiance profiles are determined from measured or estimated values of maximum solar irradiance, daily solar irradiation and the number of daylight hours. These three input data define the curve of the analytical solar irradiance profiles. Depending on the objectives, these data may represent, for example, the worst winter day of a certain place, or the average day of a summer season, etc.
Primary Item Type:
British Standard
Identifiers:
ISBN 0 580 29027 1
ICS 27.160 Solar energy engineering
Language:
English
Subject Keywords:
Solar radiation; Mathematical calculations; Control samples; Distribution curves; Analysis; Radiation; Meteorology; Range (statistics); Radiation measurement; Equations
First presented to the public:
3/26/2026
Original Publication Date:
12/15/1997
Previously Published By:
British Standards Institution
Place Of Publication:
London, United Kingdom
Citation:
Extents:
Number of Pages - 7
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2026-03-26 14:37:47.816
Submitter:
Engku Shahidil Engku Ab Rahman

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