Abstract
The present study aims at improving the impinging jet heat transfer by placing an open-cellular porous plate on a heated surface, on which a circular jet nozzle with a flange is installed, and thus the porous plate is bounded by the heated surface and the flange and is expected to act as a heat sink. In the experiment, nitrogen gas was used as a coolant and Ag, Cu, Ni and Ni-Cr porous plates having various porosities, pores per inch and thicknesses were examined. It is found that the impingement heat transfer can be augmented prominently by placing an appropriate open-cell porous plate in a heating section.
