Thermal Management of Flat Photovolatic Panels using Serrated Fins to Increase Electrical Output
DOI:
https://doi.org/10.6000/1929-6002.2018.07.04Keywords:
Photovoltaic, serrated fin, thermal management, heat transfer, IV characteristics.Abstract
The electrical power output of photovoltaic (PV) cell depends on its operating temperature during its absorption of solar radiation and conversion of solar energy to electrical energy. The increase in PV panel temperature due to overheating negates its electrical yield and efficiency. In addition, overheating causes hot spots, failure of adhesive seals and delamination. An effective way to combat this problem is to reduce the operating temperature of PV panel by cooling. In the present work, a novel thermal management technique for improved cooling of flat PV panel is proposed with the use of serrated fins rather than straight fins. For this reason, the thermal and electrical performance of the flat PV panel with cooling system consisting of duct, brushless DC cooling fan, a plate fin and serrated fins of varying angles (30o, 45o and 60o) made up of aluminium were investigated experimentally. Experiments were conducted at constant wind velocity (1 m/s) with the developed technique in the location of Tiruchirappalli (78.6 E to 10.8 N), Tamil Nadu, India with flat 10 W PV panel. By using serrated fins of varying angles of 30o, 45o, 60o and plate fin (90°), the temperature of the PV panel decreased by a maximum of 4oC, 7oC, 6oC and 3oC respectively. Similarly the PV power increased in the range of 15.38%, 61.53%, 41.53% and 7.69% for 30o, 45o, 60o and plate fin (90°) respectively. It is concluded that 45o angled serrated fin is more efficient in providing the cooling effect than the other angles of serrated fins considered.
References
[1]Shukla A, Kant K, Sharma A, Biwole PH. Cooling methodologies of photovoltaic module for enhancing electrical efficiency: A review Solar Energy Materials & Solar Cells 2017; 160: 275-286.https://doi.org/10.1016/j.solmat.2016.10.047
[2]Chandrasekar M, Rajkumar S, Valavan D. A review on the thermal regulation techniques for non integrated flat PV modules mounted on building top. Energy and Buildings 2015; 86: 692-697.https://doi.org/10.1016/j.enbuild.2014.10.071
[3]Royne A, Dey CJ. Design of a jet impingement cooling device for densely packed PV cells under high concentration. Solar Energy 2007; 81:1014-1024.https://doi.org/10.1016/j.solener.2006.11.015
[4]Tonui JK, Tripanagnostopoulos Y. Performance improvement of PV/T solar collectors with natural air flow operation. Solar Energy 2008; 82: 1-12.https://doi.org/10.1016/j.solener.2007.06.004
[5]Yozwiak M, Loxsom, F. Passive cooling of roof-mounted photovoltaic modules. Conference Proceedings of American Solar Energy Society SOLAR 2010. Experimental validation of a heat transfer model for concentrating photovoltaic system. 2010.
[6]Sendhil Kumar N, Matty K, Rita E, Simon W, Ortrun A, Alex C, Roland W, Tim G, Tapas Kumar M. Experimental validation of a heat transfer model for concentrating photovoltaic system. Applied Thermal Engineering 2012; 33-34: 175-182.https://doi.org/10.1016/j.applthermaleng.2011.09.031
[7]Sendhil Kumar N, Tapas Kumar M, Matty K, Simon W. Numerical investigations of solar cell temperature for photovoltaic concentrator system with and without passive cooling arrangements. International Journal of Thermal Sciences 2011; 5: 2514-2521.
[8]Abu-Rahmeh TM, Efficiency of Photovoltaic Modules Using Different Cooling Methods: A Comparative Study. Journal of Power and Energy Engineering 2017; 5: 32-45.https://doi.org/10.4236/jpee.2017.59003
[9]Cabo FG, Nizetic S, Coko D, Kragic IM, Papadopoulos A. Experimental investigation of the passive cooled free-standing photovoltaic panel with fixed aluminum fins on the backside surface. Journal of Cleaner Production 2018; 76: 119-129.https://doi.org/10.1016/j.jclepro.2017.12.149
[10]Selimefendigil F, Bayrak F, Oztop H.F. Experimental analysis and dynamic modeling of a photovoltaic module with porous fins. Renewable Energy 2018; 125: 193-205.https://doi.org/10.1016/j.renene.2018.02.002
[11]Solanki CS, Sangani CS, Gunashekar D, Antony G. Enhanced heat dissipation of V-trough PV modules for better performance, Solar Energy Materials and Solar Cells 2008; 92: 1634-1638.https://doi.org/10.1016/j.solmat.2008.07.022
[12]Hashizume K, Morikawa R, Koyama T, Matsue T. Fin efficiency of serrated fins, Heat Transfer Engineering 2002; 23: 6-14.https://doi.org/10.1080/01457630252800386
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