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International Journal of Photoenergy
Volume 2013, Article ID 929235, 12 pages
http://dx.doi.org/10.1155/2013/929235
Research Article

Exergy, Energy, and Dynamic Parameter Analysis of Indigenously Developed Low-Concentration Photovoltaic System

1School of Solar Energy, Pandit Deendayal Petroleum University, Gandhinagar 382007, India
2School of Technology, Pandit Deendayal Petroleum University, Gandhinagar 382007, India

Received 29 May 2013; Revised 26 July 2013; Accepted 11 August 2013

Academic Editor: Mahmoud M. El-Nahass

Copyright © 2013 Pankaj Yadav et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Piecewise linear parabolic trough collector (PLPTC) is designed and developed to concentrate solar radiation on monocrystalline silicon based photovoltaic module. A theoretical model is used to perform electrical energy and exergy analysis of low-concentration photovoltaic (LCPV) system working under actual test conditions (ATC). The exergy efficiency of LCPV system is in the range from 5.1% to 4.82% with increasing rate of input exergy rate from 30.81 W to 96.12 W, when concentration ratio changes from 1.85 to 5.17 Sun. Short-circuit current shows increasing trend with increasing input exergy rate of 0.011 A/W. Power conversion efficiency decreases from 7.07 to 5.66%, and open-circuit voltage decreases from 9.86 to 8.24 V with temperature coefficient of voltage  V/K under ATC. The results confirm that the commercially available silicon solar PV module performs satisfactorily under low concentration.