Abstract
The polycrystalline photovoltaic cell has an efficiency around 11-14%. The efficiency is low because of different factor, out of which the temperature is one of affecting factor on efficiency. The solar cell efficiency decreases with increase in temperature. So it is necessary to cool the PV panel to improve its efficiency. Cooling of PV panel is one of critical issue during the planning of installation of PV plant. In the present work cooling of photovoltaic panel via different vegetation and water tray is carried out. The aim of this project is to optimize the panel efficiency by controlling the panel surface temperature by cultivating different vegetation below the panel. The experiment is done for polycrystalline silicon cell. The plants selected for the experimentation has a good evapotranspiration effect except aloe vera. The numerical value of increase in instantaneous efficiency is 3-4%, 1.8-2.2%, 1.2 -2%, 0.2 -0.5% for water tray, peppermint, tulsi and aloe vera respectively. The economical benefits due to cultivation of peppermint, tulsi aloe vera and water tray and also due to increase in power production from 1MW solar plant per year is forecasted has Rs. /- 455250, 436012, 219150 and 778850 respectively.
Highlights
Photovoltaic cells are devices which convert solar radiation directly into electricity
Solar cells perform better in cold rather than in hot climate and as things stand, panels are at 25 ̊C which can be significantly different from the real outdoor situation [4,5,6]
The cooling media can be classified into two categories a) Medicinal Plant. b) Water tray
Summary
Photovoltaic cells are devices which convert solar radiation directly into electricity. The installation of MW scale power plant will leads to keep land to be barren and it leads to soil erosion in rainy season or in windy atmosphere To avoid such phenomenon we can use this barren land for cultivating the specific plant which provide good cooling effect by extracting heat from PV panel [16,17]. Due to the cooling of panel the performance of PV plant is enhanced by cultivating specific plant certain economics benefit can be achieved. By this experimental method we can improve the performance of panel and the electricity production rate will increase [18]. The cooling media can be classified into two categories a) Medicinal Plant. b) Water tray (keeping tray filled with water at the below of PV panel)
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