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Comparative Study on Simulation of Daylighting Under CIE Standard Skies for Different Seasons

  • Abhijit Gupta
  • Sutapa MukherjeeEmail author
Conference paper
  • 141 Downloads
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 591)

Abstract

This paper deals with the comparative study on daylight availability on horizontal working plane of a simulated room under identified CIE (International Commission on Illumination) Standard skies prevailing in Roorkee, India for the three seasonal conditions, viz. equinox, summer, and winter solstices. Daylight coefficient method (DC) and finite element method (FEM) have been applied to develop computer programs in MATLAB environment for this simulation. Here daylight availability is predicted for a room with single-sided window of opening areas 20% of floor area and sill height 1 m from floor with eight cardinal window orientations. Analysis revealed that during summer the amount of daylight availability is maximum as the sun shines directly on the Northern Hemisphere during summer. Polar axis of earth is tilted 23.5° to the orbital plane. Differential and changing illumination pattern on earth for different seasons is due to combinations of rotation, revolution, and tilt of polar axis.

Keywords

CIE standard skies Sky component computation Daylight coefficient method Finite element method Rotation and revolution of earth 

Notes

Acknowledgements

The author wishes to acknowledge the support received from Dr. R. Kittler and Dr. Danny H. W. Li since they sent their publications which helped to complete this research. She also likes to thank Indian Society of Lighting Engineers [ISLE] and Mr. P. K. Bandyopadhyay, past President, ISLE for providing a copy of the report [12] published by Central Building Research Institute [CBRI] containing Indian Measured Daylight Database.

References

  1. 1.
    Tregenza PR, Waters IM (1983) Daylight coefficient. Light Res Technol 15(2):65–71CrossRefGoogle Scholar
  2. 2.
    Li DHW, Lau CCS, Lam JC (2011) A simplified procedure using daylight coefficient method for sky component prediction. Arch Sci Rev 14(3):287–294Google Scholar
  3. 3.
    Investigations on evaluation of daylight and solar irradiance parameters for improved daylighting of buildings and energy conservation in different climates. Central Building Research Institute [CBRI] (2001)Google Scholar
  4. 4.
    Li DHW, Lau CCS, Lam JC (2003) A study of 15 sky luminance patterns against Hong Kong Data. Arch Sci Rev 46(16):1–68CrossRefGoogle Scholar
  5. 5.
    Kittler R, Darula S (2006) The method of aperture meridians: a simple calculation tool for applying the ISO/CIE standard general sky. Light Res Technol 38(2):109–122CrossRefGoogle Scholar
  6. 6.
    Mukherjee Sutapa, Roy Biswanath (2012) Correlating Indian measured sky luminance distribution and Indian Design clear sky model with five CIE standard clear sky models. J Opt 40(4):150–161CrossRefGoogle Scholar
  7. 7.
    Darula S, Kittler R, CIE general sky standard defining luminance distributions. Institute of Construction and Architecture, Slovak Academy of Sciences 9, Dubravska Road, SK—842 20 Bratislava, SlovakiaGoogle Scholar
  8. 8.
    Reinhart Christoph F, Herkel S (2000) The simulation of annual daylight illuminance distributions—a state-of-the-art comparison of six RADIANCE-based methods. Energy Build 32(2):167–187CrossRefGoogle Scholar
  9. 9.
    Mardaljevic J (2000) Simulation of annual daylighting profiles for internal illuminance. Light Res Technol 32(3):111–118CrossRefGoogle Scholar
  10. 10.
    Li DHW, Tang HL (2008) Standard skies classification in Hong Kong. J Atmos Sol Terr Phys 70(8):1222–1230CrossRefGoogle Scholar
  11. 11.
    CIE—Commission Internationale de l′Éclairage (2003) Spatial distribution of daylight-CIE Standard General Sky. CIE Standard S 011/E. CIE Central Bureau, ViennaGoogle Scholar
  12. 12.
    Wright J, Perez R, Michalsky J (1989) Luminous efficacy of direct irradiance: variations with insolation and moisture conditions. Sol Energy 42(5):387–394CrossRefGoogle Scholar
  13. 13.
    Debashis Raul, Sujoy Pal, Biswanath Roy (2015) Application of Perez daylight efficacy model for Kolkata. J Inst Eng India Ser B 96(4):339–348Google Scholar
  14. 14.
    Littlefair PJ (1992) Daylight coefficients for practical computation of internal illuminances. Light Res Technol 24(3):261–266Google Scholar
  15. 15.
    Li DHW, Cheung GHW, Lau CCS (2006) A simplified procedure for determining indoor daylight illuminance using daylight coefficient concept. Build Environ 41(5):578–589CrossRefGoogle Scholar
  16. 16.
    Li DHW (2007) Daylight and energy implications for CIE standard skies. Energy Convers Manag 48(3):745–755CrossRefGoogle Scholar
  17. 17.
    Fernandes LL, Lee ES, Ward G (2013) Lighting energy savings potential of split-pane electrochromic windows controlled for daylighting with visual comfort. Energy Build 61C:8–20CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.Department of Electrical EngineeringB. P. Poddar Institute of Management & TechnologyKolkataIndia

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