Effect of a hybrid jet impingement/micro-channel cooling device on the performance of densely packed PV cells under high concentration
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This paper studies in deep the performance of a new hybrid jet impingement/micro-channel cooling scheme for densely packed PV cells under high concentration. The device combines a slot jet impingement with a non-uniform distribution of micro-channels. The Net PV output of the concentrator system, defined as the PV output less the pumping power, and its temperature uniformity are analyzed. The hybrid cooling scheme offers a minimum thermal resistance coefficient of 2.18 10 5Km2/W with a pressure drop lower than in micro-channel devices. This characteristic involves that the Net PV Output of the PV receiver is higher when cooled by the hybrid design than when cooled by the micro-channel one. The chance to modify, at the design stage, the internal geometry of the hybrid cooling scheme allows improving the temperature uniformity of the PV receiver through the adequate distribution of the local heat removal capacity.
Is part ofSolar Energy, 2011, vol. 85, núm. 11, p. 2655-2665
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Barrau, Jérôme; Omri, Mohamed; Chemisana Villegas, Daniel; Rosell Urrutia, Joan Ignasi; Ibáñez, Manuel; Tadrist, Lounes (Elsevier, 2012)A new hybrid jet impingement/micro-channel cooling scheme is studied numerically for use in highheat- flux thermal management of electronic and power devices. The device is developed with the objective of improving the ...
Barrau, Jérôme; Chemisana Villegas, Daniel; Rosell Urrutia, Joan Ignasi; Tadrist, Lounes; Ibáñez, Manuel (Elsevier, 2010-10)A new hybrid cooling scheme is proposed for high heat flux management and power devices. This scheme combines the benefits of micro-channel and jet impingement cooling technologies, with the additional objective of improving ...
Design of a hybrid jet impingement /microchannels cooling device for densely packed PV cells under high concentration Barrau, Jérôme; Rosell Urrutia, Joan Ignasi; Ibáñez, Manuel (AIP Publishing, 2010)A hybrid jet impingement / microchannel cooling scheme was designed and applied to densely packed PV cells under high concentration. An experimental study allows validating the principles of the design and confirming its ...