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As the behavior of the spray cooling parameters, during cooling without phase change, is rarely considered and there are only little investigations on that matter, this work is focused on the influence of the parameters involved in water spraying cooling process of an aluminum plate at a temperature of 92°C. A detailed study of the effects of mass-flow rate, fluid pressure and the nozzle height above the hot plate was achieved using the version 5.2 of the COMSOL Multiphysics code. First of all, the flow rate was varied from 0.497 up to 1 L/min. Then, the inlet pressure varied from 0.7 to 2.1 bars. The influence of nozzle-to-target distance is also tested since the simulations were carried out in a wide height range (100 to 505 mm). The effect of the studied parameters on the temperature, total internal energy, convective heat flux, Reynolds number, spray distribution and velocity was investigated.
PAPER REVISED: 2019-05-01
PAPER ACCEPTED: 2019-05-21
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THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Supplement 4, PAGES [S1393 - S1402]
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© 2019 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence