Abstract
Industry and government interest in solar energy has increased in recent years in the Middle East. However, despite high levels of solar irradiance in the Arabian Gulf harsh climatic conditions adversely affect the electrical performance of solar photovoltaics (PV). The objective of this study is to compare the annual performance characteristics of solar PV modules that utilize either sun-tracking or water cooling to increase electrical power generation relative to that of stationary, passively cooled modules in the Middle East climatic conditions. This is achieved using an electro-thermal model developed and validated against experimental data acquired in this study. The model is used to predict the annual electrical power output of a 140 W PV module in Abu Dhabi (24.43 °N, 54.45 °E) under four operating conditions: (i) stationary geographical south facing orientation with passive air cooling, (ii) sun-tracked orientation with passive air cooling, (iii) stationary geographical south facing orientation with water cooling at ambient air temperature, and (iv) stationary geographical south facing orientation with water refrigerated at either 10 or 20 °C below ambient air temperature. For air cooled modules, sun-tracking is found to enhance annual electrical power output by 15 % relative to stationary conditions. For water cooled modules, annual electrical power output increases by 22 % for water at ambient air temperature, and by 28 and 31 % for water refrigerated at 10 and 20 °C below ambient air temperature, respectively. 80 % of the annual output enhancement obtained using water cooling occurs between the months of May and October. Finally, whereas the annual yield enhancement obtained with water cooling at ambient air temperature from May to October is of 18 % relative to stationary passive cooling conditions, sun-tracking over the complete year produces an enhancement of only 15 % relative to stationary passive cooling conditions.
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References
Renewable Energy World, http://www.renewableenergyworld.com/rea/news/article/2009/01/abu-dhabi-sets-7-percent-renewables-target-54536. Accessed 10 Sept 2013
P. Rodgers, V. Eveloy, An Integrated Thermal Management Solution fot Flat-Type Solar Photovoltaic Modules,” in EuroSime, 14th Internation Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (2013)
T. Anderson, M. Duke, G. Morrison, J. Carson, Performance of a building integrated photovoltaic/thermal (BIPVT) solar collector. Sol. Energy 83(4), 445–455 (2009)
P. Rodgers, V. Eveloy, S. Bojanampati, Enhancing The Performance of Photovoltaic Solar Modules Active Thermal Management, in ASME 11th Biennial Conference on Engineering Systems Design and Analysis, Nantes, France (2012) (paper no. ESDA2012-82792)
S. Armstrong, W. Hurley, A thermal model for photovoltaic panels under varying atmospheric conditions. Appl. Therm. Eng. 30(1), 1488–1495 (2010)
F. Sarhaddi, S. Farahat, H. Ajam, A. Behzadmehr, M.M. Adeli, An improved thermal and electrical model for a solar photovoltaic thermal (PV/T) air collector. Appl. Energy 87(1), 2328–2339 (2010)
L. Candanedo, A. Athienitis, K.-W. Park, Convective heat transfer coefficients in a building-integrated photovoltaic/thermal system, Sol. Energy Eng. 133(1), 021002-1–021002-14 (2011)
Posharp, Photovoltaic Panel Efficiency and Performance, Posharp, Quincy (2011)
S. Sharples, P. Charlesworth, Full-scale measurements of wind-induced convective heat transfer fom a roof-mounted flat plate solar collector. Sol. Energy 62(2), 69–77 (1998)
E. Sartori, Convection coefficient equations for forced air flow over flat surfaces. Sol. Energy 80(1), 1063–1071 (2005)
F. Incropera, D. Dewitt, T. Bergman, A. Lavine, Fundamentals of Heat and Mass Transfer, 6th edn. (Wiley, New York, 2007)
P. Rodgers, D. Lowrie, S. McColl, V. Eveloy, A.R. Baba, “Enhancement of Flat-Type Solar Photovoltaics Power Generation in Harsh Environment Conditions,” Accepted for Publication at the Thirtieth Annual Thermal Measurement (Modeling and Management Symposium, San Jose, 2014), pp. 11–13
Abu Dhabi Statistics Centre, Satistical Yearbook of Abu Dhabi (The Statistics Centre, Abu Dhabi, 2013)
Freemeteo, Hourly weather history for Abu Dhabi, Untied Arab Emirates, Freemeteo, http://freemeteo.com/default.asp?pid=20&gid=292968&sid=412160&la=1&lc=1&nDate=15/8/2013. Accessed 15 Dec 2013
Math Open Reference, General Equation of an Ellipse (2009), http://www.mathopenref.com/coordgeneralellipse.html. Accessed 15 Dec 2013
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McColl, S.J., Rodgers, P., Eveloy, V. (2014). Thermal Management of Solar Photovoltaics Modules for Enhanced Power Generation. In: Hamdan, M., Hejase, H., Noura, H., Fardoun, A. (eds) ICREGA’14 - Renewable Energy: Generation and Applications. Springer Proceedings in Energy. Springer, Cham. https://doi.org/10.1007/978-3-319-05708-8_38
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DOI: https://doi.org/10.1007/978-3-319-05708-8_38
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