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Experimental investigation of the effects of corona wind on the performance of an air-cooled PV/T

Golzari, S ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1016/j.renene.2018.04.029
  3. Abstract:
  4. In the present study, enhancing the heat transfer is experimentally investigated by the electro-hydrodynamics (EHD) through a single-pass air-cooled PV/T (Photovoltaic/Thermal System). The corona wind increases the heat transfer coefficient by producing a secondary flow and vortex, and consequently, increases the PV/T system efficiency. The effects of the corona wind are studied by changing the voltage values and the flow rates in the air channel. The results show that the corona wind is effective on enhancing the system performance; so that the heat transfer coefficient increases by 65% in natural flow regime by applying 11 kV voltage in the pilot setup. Totally, the thermal efficiency of the PV/T system increases up to 28.9%. Also, the effects of corona wind are studied by changing the amount of the applied high voltages and flow rates. © 2018 Elsevier Ltd
  5. Keywords:
  6. Air-cooled PVT ; Corona wind ; Efficiency ; Electro-hydrodynamics ; Photovoltaic thermal ; Efficiency ; Electrohydrodynamics ; Heat transfer coefficients ; Corona winds ; Electrohydrodynamic (EHD) ; Experimental investigations ; Natural flow regime ; Photovoltaic thermals ; Photovoltaic/thermal systems ; System efficiency ; Thermal efficiency ; Cooling systems ; Cooling ; Energy efficiency ; Experimental study ; Heat transfer ; Hydrodynamics ; Performance assessment ; Photovoltaic system ; Solar wind ; Vortex
  7. Source: Renewable Energy ; Volume 127 , 2018 , Pages 284-297 ; 09601481 (ISSN)
  8. URL: https://www.sciencedirect.com/science/article/pii/S0960148118304385