Experimental Heat Transfer, Vol.27, No.1, 72-90, 2014
ENHANCEMENT OF COOLING RATE FOR A HOT STEEL PLATE USING AIR-ATOMIZED SPRAY WITH SURFACTANT-ADDED WATER
The objective of the current research deals with the experimental study of an air-atomized spray with surfactant-added water, cooling a 12-mm-thick AISI-1020 stationary steel plate at three different initial surface temperatures (400 degrees C, 600 degrees C, and 900 degrees C). Furthermore, the effects of surfactant concentration and airflow rate on the cooling rate have been investigated. The surface heat flux and surface temperature show a significant improvement in cooling for all three cases of initial surface temperatures when the air-atomized spray was used with surfactant-added water.