Power losses in an asymmetric compound parabolic photovoltaic concentrator
Mallick, Tapas K., Eames, Philip C. and Norton, Brian. (2007) Power losses in an asymmetric compound parabolic photovoltaic concentrator. Solar Energy Materials and Solar Cells, Vol.91 (No.12). pp. 1137-1146. ISSN 0927-0248Full text not available from this repository.
Official URL: http://dx.doi.org/10.1016/j.solmat.2007.03.020
An asymmetric compound parabolic photovoltaic concentrator (ACPPVC) of geometrical concentration ratio 2 was designed, developed and evaluated for building facade integration. Despite the two times theoretical concentration, the maximum output power achieved was only 1.62 times that of a similar non-concentrating system for a wide range of solar radiation intensities due to a combination of optical and electrical resistance losses. In this paper, the power loss of the ACPPVC system is explained by a comparative power loss analysis of the non-concentrating photovoltaic system for long- and short-tabbed solar cell strings that showed an average of 3.4% electrical power loss due to resistance in the interconnections between each individual solar cell. The optical losses of the ACPPVC were 15% caused by the combined effect of the number of reflections at the reflectors and the misalignment of the imperfection in the reflector geometry solar cells in addition to the power loss due to increased temperature of 0.6%. Good agreement was found between the measured and calculated optical efficiency of the system. (c) 2007 Elsevier B.V. All rights reserved.
|Item Type:||Journal Article|
|Subjects:||T Technology > TJ Mechanical engineering and machinery
T Technology > TA Engineering (General). Civil engineering (General)
|Divisions:||Faculty of Science > Engineering|
|Journal or Publication Title:||Solar Energy Materials and Solar Cells|
|Publisher:||Elsevier Science BV|
|Date:||23 July 2007|
|Number of Pages:||10|
|Page Range:||pp. 1137-1146|
|Access rights to Published version:||Restricted or Subscription Access|
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