Effect of fin and electrodes on electro-hydrodynamic enhanced heat transfer in enclosures

In this work, enhancement of heat transfer in partially open finned enclosures with single fin and multiple fins was investigated experimentally. Five faces of the enclosure were insulated thermally and electrically; while one face was copper finned plate with an aperture located at its opposite face. Various parameters were considered like supplied current, electrode arrangement, number of fins, and different types of corona discharge. It was concluded that the heat transfer is enhanced while the supplied current is increased. Moreover, higher number of fins can lead to more enhancement of the ratio of heat transfer caused by electrohydrodynamic (EHD) technique. Finally, it was observed that the best location for electrodes is in front of the fins.