Research Papers: Alternative Energy Sources

Efficiency Enhancement of Photovoltaic/Thermal Module Using Front Surface Cooling Technique in Winter and Summer Seasons: An Experimental Investigation

[+] Author and Article Information
Himanshu Sainthiya

Department of Electronics and Communication Engineering,
Bundelkhand Institute of Engineering and Technology,
Jhansi 284128, UP, India
e-mail: himanshu.ece@bietjhs.ac.in

Narendra S. Beniwal

Department of Electronics and Communication Engineering,
Bundelkhand Institute of Engineering and Technology,
Jhansi 284128, UP, India
e-mail: nsb@bietjhs.ac.in

Contributed by the Advanced Energy Systems Division of ASME for publication in the Journal of Energy Resources Technology. Manuscript received May 28, 2018; final manuscript received February 12, 2019; published online March 27, 2019. Assoc. Editor: Esmail M. A. Mokheimer.

J. Energy Resour. Technol 141(9), 091201 (Mar 27, 2019) (8 pages) Paper No: JERT-18-1383; doi: 10.1115/1.4043133 History: Received May 28, 2018; Accepted February 18, 2019

This paper presents the effect of the front surface water cooling on performance parameters (solar cell temperature, back surface temperature, outlet water temperature, electrical efficiency, overall efficiency, etc.) of photovoltaic/thermal (PV/T) module in both winter and summer seasons in Indian climatic conditions. A mathematical model of PV/T module considering energy balance equations has also been presented. A comparative analysis of performance parameters obtained analytically and experimentally has also been presented. A fair agreement has also been found between analytical and experimental results which is supported by correlation coefficient of approximately unity and root mean square error of 10–14%. By front surface water cooling, solar cell and back surface temperature of PV/T module have been found to decrease considerably which in turn resulted in enhanced electrical and overall efficiency of module in winter and summer seasons.

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Fig. 4

Thermal energy network of the photovoltaic/thermal water collector

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Fig. 3

A thermal cross-sectional view of the photovoltaic/thermal water collector system

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Fig. 2

Thermal resistance of water flowing on top of the photovoltaic module

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Fig. 1

Front view of the experimental setup of the photovoltaic solar module

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Fig. 5

Solar radiation and solar cell temperature for different water flow rates: (a) winter season and (b) summer season

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Fig. 6

Back surface temperature with and without cooling in (a) winter season and (b) summer season

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Fig. 7

Water temperature with different lengths

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Fig. 8

Electrical efficiency in (a) winter season and (b) summer season

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Fig. 9

Electrical efficiency for different flow rates in (a) winter season and (b) summer season

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Fig. 10

Overall efficiency in (a) winter season and (b) summer season



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