Experimental Research on Heat/Mass Transfer Features of Corrugated Plate Spray Humidification Air Coolers

Abstract

This paper studies the heat/mass transfer features of a brand-new air cooling device, the corrugated plate spray humidification air cooler, under dry and wet working conditions. Specifically, the author compared the air and water cooling effects of the same nozzle type in different layouts and different nozzle types in the same layout. The TF6 nozzle type + 500mm×500mm layout was confirmed as the optimal working conditions for the heat exchanger under wet conditions. The results show that the spray increased both the logarithmic mean temperature difference (LMTD) of the heat exchanger and the air-side heat transfer coefficient, without obstructing the air-side flow or adding to the air resistance. Moreover, the relationship between the contact coefficient, air mass velocity and water-air ratio was obtained through data fitting.