NDLI: Experimental performance investigation of uniform and non-uniform cooling techniques for photovoltaic systems

Content Provider	IEEE Xplore Digital Library
Author	Bahaidarah, H.M.S.
Copyright Year	2015
Description	Author affiliation: Mech. Eng. Dept., King Fahd Univ. of Pet. & Miner., Dhahran, Saudi Arabia (Bahaidarah, H.M.S.)
Abstract	Uniform cooling of photovoltaic (PV) panels is one of the key parameters to optimize the cell efficiency. Temperature non-uniformity on the surface of PV panel has a major affect on the global performance of PV systems and directly increases cell resistance which leads to a drop in the output of the system. In this paper, an experimental performance investigation has been carried out for non-uniform and uniform cooling techniques for PV panels subjected to the climate of Saudi Arabia. A uniform cooling technique for PV panels based on impingement cooling device is proposed to eliminate non-uniform heat transfer across the surface of the PV panel and its performance is compared with a conventional rectangular channel heat exchanger(RHX).The PV string's overall performance was found to be sensitive with the thermal characteristics of the system. Measurements showed cell temperature as high as 83°C for PV string without cooling. By employing impingement cooling, cell temperature was reduced to 37.1°C whereas conventional heat exchanger reduced it to 47.4°C. Conversion efficiency was enhanced by 98.4 % for impingement cooling and 60.6 % for heat exchanger cooling. Results reveal that impingement cooling has not only increased the electrical power output and conversion efficiency but has reduced the cell temperature while keeping it uniform for each cell.
Starting Page	1
Ending Page	4
File Size	1154525
Page Count	4
File Format	PDF
e-ISBN	9781479979448
DOI	10.1109/PVSC.2015.7356296
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-06-14
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cooling Heating Indexes Photovoltaic systems temperature distribution cooling experiment jet impingement photovoltaic cells
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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