Analysing sky luminance scans and predicting frequent sky patterns in Singapore

Lighting Research and Technology

Volumn 39, Issue 1, 2007, Pages 31-51

  Wittkopf, S K ^a   Soon, L K ^a   Ng, Edward Y Y ^b  

^a NATIONAL UNIVERSITY OF SINGAPORE   (Singapore)

^b CHINESE UNIVERSITY OF HONG KONG   (Hong Kong)

Author keywords

[No Author keywords available]

Indexed keywords

BUILDINGS; LUMINANCE; SOLAR RADIATION; STANDARDS; STRUCTURAL DESIGN;

DAYLIGHT PATTERNS; SKY DISTRIBUTIONS; SKY LUMINANCE;

DAYLIGHTING;

EID: 33947536544     PISSN: 14771535     EISSN: None     Source Type: Journal    
DOI: 10.1177/1365782806070683     Document Type: Article

References (37)

1. Commission Internationale de l'Eclairage. Guide to Recommended Practice of Daylight Measurement. CIE 108, 1994.
2. Commission Internationale de l'Eclairage. Spatial Distribution Daylight-CIE Standard General Sky. CIE Draft Standard DS 011.3/E, 2002.
3. Li DHW. Lau CCS, Lam JC. A study of 15 sky luminance patterns against Hong Kong data. Archit Sci Rev 2003; 46: 61-68
4. IDMP-CIE. The IDMP Network. CIE. Retrieved 26 August 2005, from http:// idmp.entpe.fr/.
5. ISO. Spatial Distribution of Daylight - CIE General Sky. ISO Standard 15469, 2004.
6. Kittler R. Luminance distribution characteristics of homogeneous skies: a measurement and prediction strategy. Lighting Res Technol 1985; 17: 183-88.
7. Kittler R, Hayman S, Ruck N, Julian W. Daylight measurement data: methods of evaluation and representation. Lighting Res Technol 1992; 24: 173-87.
8. Kittler R. Relative scattering indicatix: derivation from regular radiance/luminance distribution sky scans. Lighting Res Technol 1993; 25: 125-27.
9. Kittler R. The need for standard skies and models for energy conservation measures. Lighting Res Technol 1994; 26: 171-80.
10. Kittler R. Some qualities of scattering functions defining sky radiance distributions. Solar Energy 1994; 53: 511-16.
11. Kittler, R, Darula S. Prevailing sky conditions: identifying simple parameters for definition. Lighting Res Technol 1997; 29; 63-68.
12. Kittler R, Perez R. Darula S. Sky classification respecting energy-efficient lighting, glare and control needs. J Illuminating Eng Soc 1997: Winter: 57-68.
13. Kittler R, Perez R, Darula S. A new generation of sky standards. Lux Europa. Proceedings of the 8th European Lighting Conference, Amsterdam, 1997.
14. Kittler R, Darula S, Perez R. A set of standard skies. Polygrafia, 1998.
15. Kittler, R, Darula S, Gueymard CH. Reference luminous solar constant and solar luminance for illuminance calculations. Solar Energy 2005; 79: 559-65.
16. Kittler R, Darula S, Wittkopf SK. Outdoor illuminance levels in the tropics and their representation in the Virtual Sky Dome. Archit Sci Rev 2006; 49 (in press).
17. Lam KP. Mapping of the sky luminance distribution and computational prediction of daylighting performance in Singapore. Research report. National University of Singapore, 1997.
18. Lam KP, Mahdavi A, Ullah MB, Ng E, Pal V. Evaluation of six sky luminance prediction models using measured data from Singapore. Lighting Res Technol 1999; 31: 13-17.
19. NEA. Meteorological services or local weather. Singapore: NEA. Retrieved 24 January 2006, from http://app.nea.gov.sg.
20. Tregenza PR. Subdivision of the sky hemisphere for luminance measurements. Lighting Res Technol 1987; 19: 13-14.
21. Tregenza PR. Standard skies for maritime climates. Lighting Res Technol 1999; 31: 97-106.
22. Tregenza PR. Analysing sky luminance scans to obtain frequency distributions of CIE Standard General Skies. Lighting Res Technol 2004; 36: 271-81.
23. Ullah MB. International Daylighting Measurement Programme-Singapore Data I: quality of data gathered over a long period. Lighting Res Technol 1996; 28: 69-74.
24. Ullah MB. International Daylighting Measurement Programme-Singapore Data II: luminous efficacy for the tropics. Lighting Res Technol 1996; 28: 75-81.
25. Ullah MB. International Daylighting Measurement Programme-Singapore Data III: building energy savings through daylighting. Lighting Res Technol 1996: 28: 83-87.
26. University of Ljubljana. Sky Scans EKO. University of Ljubljana. Retrieved 13 October 2005, from http://lrf.fe.uni-lj.si/ekoscan/ ekolum.htm.
27. Wittkopf SK. A method to construct Virtual Sky Domes for use in standard CAD-based light simulation software. Archit Sci Rev 2004; 47: 275-86.
28. Wittkopf SK. Evaluation of Virtual Sky Domes for the prediction of daylight performance with radiosity-based light simulation software. Archit Sci Rev 2005; 48: 173-77.
29. Wittkopf SK, Yuniarti E, Soon LK. Prediction of energy savings with anidolic integrated ceiling across different daylight climates. Energy Buildings 2006; 38: 1120-29.
30. Wittkopf SK. Daylight performance of anidolic integrated systems under different sky conditons. Solar Energy (in press).
31. Wittkopf SK, Soon LK, Yuniarti E, Grobe L. Virtual Sky Dome - making the CIE/ISO Standard General Sky available for CAD-based light simulation software. eSim2006. Proceedings of the bi-annual conference of IBPSA-Canada, Toronto, 2006.
32. CIE Standard (CIE S 011/E:2003) Spatial distribution of daylight - CIE standard general sky, Commission Internationale de I'Eclairage, Vienna, 2003.
33. Tregenza PR. Analysing sky luminance scans to obtain frequency distributions of CIE Standard General Skies. Lighting Research and Technology 2004; 36(4):271-81.
34. Lam KP, Mahdavi A, Ullah MB, Ng E, Pal V. Evaluation of Six Sky Luminance Prediction Models using Measured Data from Singapore, Lighting Research and Technology 1999: 31: 13-17.
35. Tregenza PR. Standard skies for maritime climates. Lighting Research and Technology 1999; 31(3): 97-106.
36. Ng E, Cheng V., Gadi A., Mu J., Lee M. Defining Standard Skies for Hong Kong, Building and Environment, 2005. (available online: doi:10.1016/ j.buildenv.2005.10.005).
37. Ng E, Gadi A, Wong F, Mu J, Gadi A, Max Lee. Predicting Daylight Availability Dynamically based on Forecasts of Weather Observatory, Lighting Research and Technology. (submitted).