1218 Effect of Gas Humidity on Water Evaporation Rate in High Voltage Electrical Field

Abstract

Effect of gas humidity and high voltage electrical field (HVEF) on evaporation rate were investigated. A pin type electrode was fixed above the water surface. Mass and temperature changes of water were measured under a continuous current electrical field and with parallel gas flow to the water surface. The experimental results showed that evaporation was enhanced with HVEF, gas humidity increased, evaporation rate was decreased but rate of evaporation acceleration by HVEF was increased. Water temperature reached a level approximate to wet-bulb temperature when HVEF wasn't used. Using HVEF, water temperature reached a lower than that without HVEF reading in the low humidity test, and reached a higher reading in the high humidity test.