Sky Luminance Distribution Models: A Comparison with Measurements from a Maritime Desert Region

The effective use of daylight is a function of the luminance of the sky exposed to the glazing system. Therefore, accurate data about the luminance distribution of the sky are necessary for the optimum use of daylight. This paper compares seven models for estimating the angular sky luminance distrib...

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Main Authors: Khalid Alshaibani, Danny Li, Emmanuel Aghimien
Format: Article
Language:English
Published: MDPI AG 2020-10-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/13/20/5455
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author Khalid Alshaibani
Danny Li
Emmanuel Aghimien
author_facet Khalid Alshaibani
Danny Li
Emmanuel Aghimien
author_sort Khalid Alshaibani
collection DOAJ
description The effective use of daylight is a function of the luminance of the sky exposed to the glazing system. Therefore, accurate data about the luminance distribution of the sky are necessary for the optimum use of daylight. This paper compares seven models for estimating the angular sky luminance distribution. They were selected based on the ability to be used with all sky conditions and to determine the luminance of the sky from solar radiation. Measurements of solar radiation, sky luminance, and sky radiance were taken in a “maritime desert region” in Saudi Arabia. The results showed that the “Perez 93” model performed better than the other models tested, but there is a need for more studies to identify more accurate models for use in similar climatic conditions.
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spelling doaj.art-fb315119a2214e2a887cfaad161feefd2023-11-20T17:40:16ZengMDPI AGEnergies1996-10732020-10-011320545510.3390/en13205455Sky Luminance Distribution Models: A Comparison with Measurements from a Maritime Desert RegionKhalid Alshaibani0Danny Li1Emmanuel Aghimien2College of Architecture and Planning, Imam Abdulrahman Bin Faisal University, Dammam 34212, Saudi ArabiaBuilding Energy Research Group, Department of Architecture and Civil Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, ChinaBuilding Energy Research Group, Department of Architecture and Civil Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, ChinaThe effective use of daylight is a function of the luminance of the sky exposed to the glazing system. Therefore, accurate data about the luminance distribution of the sky are necessary for the optimum use of daylight. This paper compares seven models for estimating the angular sky luminance distribution. They were selected based on the ability to be used with all sky conditions and to determine the luminance of the sky from solar radiation. Measurements of solar radiation, sky luminance, and sky radiance were taken in a “maritime desert region” in Saudi Arabia. The results showed that the “Perez 93” model performed better than the other models tested, but there is a need for more studies to identify more accurate models for use in similar climatic conditions.https://www.mdpi.com/1996-1073/13/20/5455sky luminancedaylightingmaritime desert region
spellingShingle Khalid Alshaibani
Danny Li
Emmanuel Aghimien
Sky Luminance Distribution Models: A Comparison with Measurements from a Maritime Desert Region
Energies
sky luminance
daylighting
maritime desert region
title Sky Luminance Distribution Models: A Comparison with Measurements from a Maritime Desert Region
title_full Sky Luminance Distribution Models: A Comparison with Measurements from a Maritime Desert Region
title_fullStr Sky Luminance Distribution Models: A Comparison with Measurements from a Maritime Desert Region
title_full_unstemmed Sky Luminance Distribution Models: A Comparison with Measurements from a Maritime Desert Region
title_short Sky Luminance Distribution Models: A Comparison with Measurements from a Maritime Desert Region
title_sort sky luminance distribution models a comparison with measurements from a maritime desert region
topic sky luminance
daylighting
maritime desert region
url https://www.mdpi.com/1996-1073/13/20/5455
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