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Estimation of monthly averaged direct normal solar radiation using elevation angle for any location

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Title Estimation of monthly averaged direct normal solar radiation using elevation angle for any location
 
Creator SOLANKI, CS
SANGANI, CS
 
Subject diffuse
insolation
cells
solar pv/thermal concentrator
direct normal solar radiation
monthly averaged daily and hourly global radiation
monthly averaged daily and hourly diffuse radiation
 
Description Light concentrators used in solar photovoltaic and solar thermal applications, and concentrates light by a factor of 10 or more, use only direct normal solar radiation, IN. A new method, called elevation angle constant (EAC) method, is developed to determine the resource potential of IN for different locations. This method is applicable to estimate the IN at any location in the world. The EAC method is based on empirical relations. The method calculates the elevation angle constant (c) for a given location and time. It uses readily available daily global and diffuse global radiation data to estimate the IN. This is different from existing methods which invariably uses hourly global and diffuse radiation. The values of IN are estimated for 12 locations across the world. The values of IN obtained using the EAC method have been compared with values obtained using the model-based approach (Appendix-1). The comparison is also done with the measured values for some stations. Ninety percent of the estimated values of IN using the EAC method for the stations like Angola, Egypt, Kuala Lumpur, Singapore, Brussels, Stuttgart, Ottawa, Birmingham, Los Angeles, Wellington, Perth and New Delhi are within +/- 5% of the values estimated by the model-based approach (Appendix-1). (c) 2007
 
Publisher ELSEVIER SCIENCE BV
 
Date 2011-07-25T00:57:49Z
2011-12-26T12:48:55Z
2011-12-27T05:34:27Z
2011-07-25T00:57:49Z
2011-12-26T12:48:55Z
2011-12-27T05:34:27Z
2008
 
Type Article
 
Identifier SOLAR ENERGY MATERIALS AND SOLAR CELLS, 92(1), 38-44
0927-0248
http://dx.doi.org/10.1016/j.solmat.2007.08.006
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6584
http://hdl.handle.net/10054/6584
 
Language en