NUMERICAL ANALYSIS OF HEAT TRANSFER ENHANCING PARAMETERS ON IMPINGING AIR JETS

Authors : Burak TURKAN, Akin Burak ETEMOGLU

Pages : 1017-1030

View : 42 | Download : 8

Publication Date : 2020-09-01

Article Type : Research Paper

Abstract :Impinging air jets are widely used in industry for heating, cooling and drying. Single and multiple impinging air jets provide the best configuration for convective heat and mass transfer to a surface. In this study, the convection air jets were examined numerically. Air velocity insert ignore into journalissuearticles values(12, 23 and 35 m/s);, geometry dimensions insert ignore into journalissuearticles values(H/D distance= 4, 6, 8, 10, 12);, number of nozzles insert ignore into journalissuearticles values(single and double); and the distance between nozzles insert ignore into journalissuearticles values(n = 50, 75, 100); were selected as parameters. For single nozzle, the most efficient condition was seen in H/D=10 and the highest Reynolds number. It was determined that the efficiency of heat transfer after H/D=10 has decreased for single nozzle. The most efficient heat transfer for the double nozzle was obtained for the 12114 of Reynolds number and H/D=8. In this study, a numerical approach is presented to find an optimum solution for cooling problems in the electronics industry.
Keywords : Heat transfer, impinging air jet, numerical method

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