EFFECT OF STEEL PLATE THICKNESSES AND FLUID FLOW CHARACTERISTICS OF AN IMPINGING AIR JET ON HEAT TRANSFER AT THE STAGNATION POINT
AUTOR(ES)
Jeyajothi, K.
FONTE
Braz. J. Chem. Eng.
DATA DE PUBLICAÇÃO
15/07/2019
RESUMO
ABSTRACT The design and process of heat transfer elements, from its source to heat sink through various media vary according to the product and system concerned. The effect of thickness of a steel plate on heat transfer characteristics with an impinging air jet at the stagnation point was studied. Experiments were carried out with different nozzles, heights, and velocities. It was concluded that the heat transfer increases with the increase in velocity and the increase in Reynolds Number, but decreases with the increase in nozzle height from the impinging point. A maximum stagnation Nusselt number of 309.06 was obtained at the optimum conditions with a plate thickness of 3 mm. The new empirical correlations calculated from the experiments were in reasonable agreement with the equations in the literature and the deviation was less than 15%.
Documentos Relacionados
- Stagnation point flow and heat transfer of a micropolar fluid with uniform suction or blowing
- STUDY OF FLOW AND HEAT TRANSFER CHARACTERISTICS IN A SWIRLING IMPINGING JET
- Boundary layer stagnation-point flow of a third grade fluid over an exponentially stretching sheet
- CFD and experimental investigation on the heat transfer characteristics of alumina nanofluids under the laminar flow regime
- EFFECT OF ROTATION RATES ON THE LAMINAR FLOW AND HEAT TRANSFER PAST A CIRCULAR CYLINDER