Abstract
Recently, moderate scale electric power plants are planned and constructed near or inside of cities. Sometimes, the cooling tower systems were used for inland power stations. But for cooling towers, condensation of moisture, in the exhaust plumes occurs and it has some possibility to violate traffics or environment at view. In this study, numerical simulations were conducted for plume diffusion and moisture condensation by changing wind velocity, moisture content at the exhaust and number of the towers units.