Journal
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
Volume 55, Issue -, Pages 45-52Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.icheatmasstransfer.2014.04.009
Keywords
Cooling; Photovoltaic cell; Microchannel; Nanofluid; Boehmite nanopartides
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Experiments were conducted to investigate the cooling performance of water-based Boehmite (AlOOH center dot xH(2)O) nanofluid in a hybrid photovoltaic (PV) cell. A Perspex plate consists of 40 parallel rectangular microchannels with a hydraulic diameter of 783 mu m, a length of 24 cm, a width of 1.8 mm and a depth of 500 mu m attached to the back of the cell. Cooling performances of water, as the base fluid, and three different concentrations of nanofluid (0.01, 0.1 and 03 wt.%) were compared. The nanofluid thermal performance has been assessed from the obtained results for outlet flow temperature and the average PV surface temperature. The average PV surface temperature decreased from 62.29 degrees C to 32.5 degrees C at zero and 300 ml/min of flow rate for 0.01 wt.% nanofluid, respectively. Moreover, the highest improving in the electrical efficiency was achieved about 27% for 0.01 wt.% concentration of the nanofluid at this flow rate. (C) 2014 Elsevier Ltd. All rights reserved.
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