Mostafa Mafi - Department of Mechanical Engineering, Imam Khomeini International University, Qazvin, Iran
Jahanfar Khaleghinia - Department of Mechanical Engineering, Nour Branch , Islamic Azad University, Nour, Iran
Bahram Ghorbani - Energy System Engineering K.N.Toosi University, Tehran, Iran
Majid Amidpour

Cooling towers are evaporative heat transfer devices in which atmospheric air cools warm water,with direct contact between the water and the air, by evaporating part of the water, mostly used inair conditioning and industrial processes. Cooling efficiency of a natural draft, dry cooling tower (NDDCT) is significantly affected under cross-wind condition This paper investigates a solution that may improve cooling performance of cooling towers, with particular interest in radial windbreakers methods around towers. The study explores a realistic scenario with four cooling towersin-square arrangement. A power plant cooling towers performance has been modeled numericallyfor different numbers of wind breakers walls to find the best condition. Efficiency improvement isaccomplished for different numbers, the results are compared and the optimized number isintroduced.

wind breaker, cooling tower, efficiency, optimization