Measured sky luminance distribution data are being collected in Singapore as a part of the International Daylighting Measurement Programme (IDMP) of the Commission Internationale de l'Eclairage (CIE). These data have been used to evaluate six different sky luminance distribution prediction models developed in recent years. The majority of the models have been shown to work satisfactorily, though they have a tendency to overestimate the sky luminance, especially in the regions of the sky farther away from the sun.
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References
1.
Hopkinson R.G., Petherbridge P. and Longmore J.Daylighting (London: Heinemann ) (1966)
2.
Perez R., Seals R. and MichalskyJ AH-weamer model for sky luminance distribution—preliminary configuration and validationSolar Energy50(3) 235-245 (1993)
3.
Littlefair P.J A comparison of sky luminance models with measured data from Garston, United KingdomSolar Energy53(4) 315-322 (1994)
4.
Brunger A.P. The magnitude, variability and angular characteristics of the shortwave sky radiance at Toronto (PhD thesis, University of Toronto) (1987)
5.
Kittler R.Luminance models of homogeneous skies for design and energy performance predictionProceedings of 2nd International Daylighting Conference , Atlanta, GA (American Society of Heating, Refrigerating and Air-Conditioning Engineers) ( 1986)
6.
Perraudeau M.Luminance modelsNational Lighting Conference and Daylighting Colloquium, Cambridge UK (1988)
7.
Mahdavi A., Berberidou L., Lam K.P. and Li Z. Computational support for the concurrent design of natural and electrical lighting systems in buildings The 1994 IESNA Annual Conference, Miami, FL pp721-30 (1994)
8.
Ullah M.B.International Daylighnng Measurement Programme —Singapore data II: luminous efficacy for the tropicsLighting Res. Technol.28(2) 75-81 (1996)
9.
Ullah M.B. Report on Research Project No. RP840014, Design and evaluation of daylighting with reference to building energy conservation (National University of Singapore) (1993)
