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Research Papers

Efficiency Improvement of a Photovoltaic Module Using Front Surface Cooling Method in Summer and Winter Conditions

[+] Author and Article Information
Himanshu Sainthiya

Electronics and Communication Engineering,
Bundelkhand Institute of Engineering
and Technology,
Jhansi 284001, Uttar Pradesh, India
e-mail: himanshusainthiya@gmail.com

Narendra S. Beniwal

Electronics and Communication Engineering,
Bundelkhand Institute of Engineering
and Technology,
Jhansi 284001, Uttar Pradesh, India
e-mail: narendra.beniwal@gmail.com

Navneet Garg

Department of Electrical Engineering,
Indian Institute of Technology Kanpur,
Kanpur 208016, Uttar Pradesh, India
e-mail: navneetg@iitk.ac.in

Contributed by the Solar Energy Division of ASME for publication in the JOURNAL OF SOLAR ENERGY ENGINEERING: INCLUDING WIND ENERGY AND BUILDING ENERGY CONSERVATION. Manuscript received December 12, 2017; final manuscript received May 4, 2018; published online June 26, 2018. Assoc. Editor: Gerardo Diaz.

J. Sol. Energy Eng 140(6), 061009 (Jun 26, 2018) (7 pages) Paper No: SOL-17-1488; doi: 10.1115/1.4040238 History: Received December 12, 2017; Revised May 04, 2018

Photovoltaic (PV) cells exhibit long-term degradation, when its temperature exceeds a certain limit. On the other hand, decreasing the temperature results in lower PV cell efficiency. The aim of this paper is to demonstrate the improvements in the output power and efficiency of PV modules using a cooling system based on flowing water on the front surface. Front surface cooling method with the help of a water pumping system is one of the most promising methods for cooling the PV cells. With poly-crystalline PV cells, different water flow rates are experimented, and the output power and the efficiency are computed for different weather conditions. These experiments yield that the cell efficiency is improved by approximately 27.3% in winter conditions and 27.6% in summer conditions.

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Figures

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Fig. 1

Experimental setup of Photovoltaic solar module

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Fig. 2

Schematic diagram of the experimental setup

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Fig. 3

Figure shows the winter variations of solar radiations, ambient temperature, front surface and back surface temperatures with and without cooling at the water flow rates of (a) 1 lpm, (b) 1.5 lpm, (c) 2 lpm, and (d) 2.5 lpm

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Fig. 4

Figure shows the summer variations of solar radiations, ambient temperature, front surface and back surface temperatures with and without cooling at the water flow rates of (a) 1 lpm, (b) 1.5 lpm, (c) 2 lpm, and (d) 2.5 lpm

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Fig. 5

For winter conditions, the figure shows (a) the output power and (b) module efficiency without cooling and with cooling at different water flow rates

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Fig. 6

For summer conditions, the figure shows (a) the output power and (b) module efficiency without cooling and with cooling at different water flow rates

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Fig. 7

Figure showing the average efficiency with and without water cooling for different water flow rates in (a) winter and (b) summer conditions

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