Review of solar irradiance and daylight illuminance modeling and sky classification

Danny H.W. Li and Siwei Lou

Renewable Energy, 2018, vol. 126, issue C, 445-453

Abstract: In many parts of the world, the solar radiation and daylight illuminance data taken from surfaces of interest are not always readily available. Without direct measurement, the data can be predicted from empirical models based on geographical variations and meteorological parameters. Recently, the International Commission on Illumination (CIE) has adopted a list of 15 standard skies. Each standard sky represents a unique, well-defined sky radiance and luminance pattern expressed by mathematical equations that can use to compute solar irradiance and daylight illuminance on inclined surfaces and variously oriented vertical planes. An issue is whether the sky conditions can be correctly categorized. This paper reviews the solar radiation and daylight illuminance model developments and sky classification methods. The findings indicated that Machine Learning techniques have been effectively used for predicting solar radiation and daylight illuminance and classifying the standard skies. Such approaches could be globally adopted and useful to compute the required climatic data for renewable and sustainable developments and energy-efficient building designs.

Keywords: Solar radiation; Daylight illuminance; Typical weather databases; Sky classification; Machine learning techniques (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (9)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:126:y:2018:i:c:p:445-453

DOI: 10.1016/j.renene.2018.03.063

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