Abstract
previous methods for irradiance distribution prediction, yielding new insights into approaches to solar still performance improvement. The modelling outcomes are presented and discussed.
Language | English |
---|---|
Pages | 13-21 |
Journal | Renewable Energy |
Volume | 51 |
DOIs | |
Publication status | Published - Mar 2013 |
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Keywords
- effective irradiance
- radiation exchange
- multiple reflections
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Computation of irradiance in a solar still by using a refined algorithm. / Madhlopa, Amos; Clarke, Joseph Andrew.
In: Renewable Energy, Vol. 51, 03.2013, p. 13-21.Research output: Contribution to journal › Article
TY - JOUR
T1 - Computation of irradiance in a solar still by using a refined algorithm
AU - Madhlopa, Amos
AU - Clarke, Joseph Andrew
PY - 2013/3
Y1 - 2013/3
N2 - A refined solar algorithm from the ESP-r system has been used to calculate the distribution of solar irradiation inside a basin-type solar still. In the approach, surface finish, view factors and multiple reflections are taken into consideration in the computation of the solar radiation that reaches the surface of the saline water in the distillation system. The algorithm was applied to a solar still tested at the University of Strathclyde in Glasgow (55 520 N, 4 150 W). Under the prevailing meteorological conditions, it was found that previous models overestimated the computed solar load on the saline water surface. The present modelling approach is demonstrated to exhibit a higher degree of accuracy thanprevious methods for irradiance distribution prediction, yielding new insights into approaches to solar still performance improvement. The modelling outcomes are presented and discussed.
AB - A refined solar algorithm from the ESP-r system has been used to calculate the distribution of solar irradiation inside a basin-type solar still. In the approach, surface finish, view factors and multiple reflections are taken into consideration in the computation of the solar radiation that reaches the surface of the saline water in the distillation system. The algorithm was applied to a solar still tested at the University of Strathclyde in Glasgow (55 520 N, 4 150 W). Under the prevailing meteorological conditions, it was found that previous models overestimated the computed solar load on the saline water surface. The present modelling approach is demonstrated to exhibit a higher degree of accuracy thanprevious methods for irradiance distribution prediction, yielding new insights into approaches to solar still performance improvement. The modelling outcomes are presented and discussed.
KW - effective irradiance
KW - radiation exchange
KW - multiple reflections
UR - http://www.scopus.com/inward/record.url?scp=84867031432&partnerID=8YFLogxK
U2 - 10.1016/j.renene.2012.08.017
DO - 10.1016/j.renene.2012.08.017
M3 - Article
VL - 51
SP - 13
EP - 21
JO - Renewable Energy
T2 - Renewable Energy
JF - Renewable Energy
SN - 0960-1481
ER -