Analysis of Convection Heat Transfer on a Plate With Porous Media

The use of porous media for the purpose of heat transfer is gaining ground these days.It also gives an opportunity to combine impinging jet flows (IJF) with porous media for the purpose of heat transfer enhancement.This paper presents the experimental and numerical study of the analyses of heat transfer on the plate with diverse nozzle to plate distance or channel height (H) in the presence of the porous media placed over the heated plate using IJF.IJF works by throwing the pressurized fluid from the nozzle exit and pounding on the heated plate after passing through the metal foam (MF) in our case.This passage of fluid from the MF extracts heat within the MF and cools down the heated plate.The repeated experiments have been performed with various variables under consideration mainly: diversity of metal foam in terms of PPI and various channel height to jet diameter ratio and diverse fluid flow.The outcome of the experimental study suggests that generally MF of 20 PPI with H/Dj ratio 8.57 has a greater value of Nusselt number (Nu) on the given Reynolds number (Re) in turbulent case while in laminar case MF of 10 PPI has greater value of Nu.The results are different when the H/Dj ratio changes.The crux of this study describes the suitable configuration of MF at specific H/Dj ratio for greater heat transfer.The results could assist in designing a suitable heat exchanger for application.