Solar radiation on variously oriented sloping surfaces

Journal Article · Tue Jan 01 04:00:00 EST 1991 · Solar Energy (Journal of Solar Energy Science and Engineering); (United States)

DOI:https://doi.org/10.1016/0038-092X(91)90076-9· OSTI ID:5988264

Gopinathan, K K ^[1]

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1. National Univ. of Lesotho, Roma (South Africa)

Monthly average daily irradiation on surfaces tilted towards the equator and also inclined at various azimuth angles are estimated for two locations in Lesotho and the results are presented. The isotropic model suggested by Liu and Jordan (Trans. of Ashrae, 526, 1962) along with the modified equation of Klein (Solar Energy, 19, 4, 1977) are employed for the estimation purposes. Surface orientations are selected at three inclinations for six different azimuth angles. Conclusions are reached for optimum tilt and orientation for summer, winter and annual collection. Total annual radiation values are computed for all the slopes and orientations.

• OSTI ID: 5988264
• Journal Information: Solar Energy (Journal of Solar Energy Science and Engineering); (United States), Journal Name: Solar Energy (Journal of Solar Energy Science and Engineering); (United States) Vol. 47:3; ISSN SRENA; ISSN 0038-092X
• Country of Publication: United States
• Language: English

Related Subjects

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AVAILABILITY
DEVELOPED COUNTRIES
EQUATIONS
EQUIPMENT
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ORIENTATION
RADIATIONS
SEASONAL VARIATIONS
SOLAR COLLECTORS
SOLAR EQUIPMENT
SOLAR RADIATION
SOUTH AFRICA
STELLAR RADIATION
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