Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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Application of Simplified Daylight Prediction Method for Daylighting Performance Evaluation on Overcast Sky

실내 주광조도 간이 예측식을 활용한 담천공 시의 자연 채광 성능 평가

  • Received : 2014.04.22
  • Accepted : 2014.06.23
  • Published : 2014.10.30
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Abstract

Daylight is very useful to control the indoor environment, and can save energy in buildings. So it is necessary to evaluate the daylighting performance of buildings. We proposed a simplified equation that can be used in the early stages of design. And we verified the equation by using the measured illuminance data from the 1/5 scale model. We compared the calculated indoor illuminances and measured illuminance including Daylight Factors of scale model in order to verify the applicability of the simplified equation, and proved the analyzed values are acceptable. When we have a target value of the Daylight Factor, we just have to determine the window area, transmittance of the glazing system, and indoor surface reflectance, then can achieve it with this simplified equation.

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References

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  2. GeneRT: A Generative Raytracing Tool for the rapid approximation of internal luminous conditions vol.44, pp.None, 2014, https://doi.org/10.1016/j.jobe.2021.102711