EFFECT OF WATER COOLING ON PHOTOVOLTAIC PERFORMANCE | ||||
| Misr Journal of Agricultural Engineering | ||||
| Article 16, Volume 33, Issue 1, January 2016, Page 257-268 PDF (836.28 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/mjae.2016.98185 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| A. T. Jailany; A. Abd El-Al; M. A. Rashwan | ||||
| Assist. Prof. Agric. and Biosystems Eng. Dept., Fac. of Agric. (El-Shatby), Alexandria University. Egypt. | ||||
| Abstract | ||||
| The efficiency of photovoltaic (PV) panels decreases as the panels' temperature increases. It is affected by various environmental parameters like temperature, dust, air velocity, and humidity. Mainly temperature is the critical factor to obtain maximum efficiency. One way of improving the efficiency of PV system is to maintain a low operating temperature by cooling it down during its operation period. This paper experimentally presents a forced-water spraying and cooling technique with variable flow rate of water on PV modules surface to improve the panels efficiency and enhance the net power saving. The results showed an initial high performance ratio and indicated that, the decreasing rate in the panel surface temperature has a direct proportional relation with PV efficiency. It was observed that, operating the cooling system for one day results a decrease in solar cells temperature by 9.07 ºC, and an increase in the solar cell output power by 1.73 Volt give an increasing in power gain and efficiency by 9.27%, 0.71% respectively. | ||||
| References | ||||
|
Abdolzadeh M. and M. Ameri, 2009. Improving the effectiveness of a photocoltaic water pumping system by spraying water over the front of photovoltaic cells, Renew Energy 2009; 34:91~96.
Azab, M., 2010. Optimal power point tracking for stand-alone PV System using particle swarm optimization, IEEE Int Symposium on, in Industrial Electronics (ISIE), pp. 969-973.
Busiso M., L. M. Edson, M. Simon, 2012. Thermal and Electrical Energy Yield Analysis of a Directly Water Cooled Photovoltaic Module, Fort Hare Institute of Tech., Univ. of Fort Hare, P Bag X 1314, Alice 5700, South Africa, Corresponding Author: bmtunzi@ufh.ac.za
Carl von Carlowitz H., 2012. Sustainability and Energy, viewed on 28th March 2012 from http://www.efcf.com/reports/E23.pdf
Chaniotakis, E., 2001. Modeling and Analysis of Water Cooled Photovoltaics, MSc Energy Systems and the Environment 2001, Department of Mechanical Engineering University of Strathclyde.
Eastop, T. D., A. Mc Conkey, 1986. Applied thermodynamics for engineering technologies.
Imamura, M. S., P. Helm, W. PALZ, 1992. PV System Tech. HS Stephens.
ITACA, 2014. A guide to photopholtaic panels, part1: photopholtaic cells, http://www.itacanet.org/a-guide-to-photovoltaic-panels/photovoltaic- pv-cells/
Kalogirou AS., 2001. Use of TRNSYS for modelling and simulation of a hybrid pv-thermal solar system for Cyprus. Renew Energy (23):247~260.
Kordzadeh A., 2010. The effects of nominal power of array and system head on the operation of photovoltaic water pimping set with array surface covered by a film of water. Renew Energy 2010; 35:1098~1102.
Krauter S., 2004. Increased electrical yield via water flow over the front of photovoltaic panels. Sol Energy Mat Sol Cells 2004; 82:131~137.
Park, K. E., G. H. Kang, H. I. Kim, G. J. Yu, & J. T. Kim, 2010. Analysis of thermal and electrical performance of semi-transparent photovoltaic (PV) module. Energy, 35(6), 2681~2687.
Rashwan M. A. and A.T. Jailany, 2014. Design and Construction of Solar Tracking Control System, Misr Journal of Agricultural Engineering, Vol. 31-No. (4) October 2014, 1549~1562.
Rehman, S., and I. El-Amin, 2012. Performance evaluation of an off-grid photovoltaic system in Saudi Arabia. Energy, 46(1), 451~458.
Royne, A., C. J. Dey, D. R. Mills, 2005. Cooling of photovoltaic cells under concentrated illumination: a critical review. Solar energy materials and solar cells, 86(4), 451~483.
Shenyi Wu and Chenguang Xiong, 2014. Passive cooling technology for photovoltaic panels for domestic houses, Int. Journal of Low-Carbon Technologies Advance Access published March 26, 2014, 1~9. | ||||
|
Statistics Article View: 267 PDF Download: 322 |
||||
