Volume No. 3 Issue No.: 2 Page No.: 515-522 Oct-Dec 2008




R. Ram Kumar*, C.M. Raguraman and A. Ragupathy

Department of Mechanical Engineering, Faculty of Engineering and Technology
Annamalai University, Annamalai Nagar, Tamil Nadu, (INDIA)


Received on : May 30, 2008




Surface water is used in cooling tower in many process industries like sugar, petrochemical, chemical and power generation. The discharge from cooling tower has considerable impact on the environment by way of emission of sensible heat to the atmosphere, discharge of the cyclic concentrated blow down water with chemical and evaporation losses. These effects have an adverse impact on the quality of the surface water and atmospheric air. A study was conducted in the cooling tower using second body water (E-II) condensate from sugar industries and D.M plant rinsing water as cooling water. The main objective was to improve the cooling tower performance and to minimize the cooling tower water blowdown with low environmental impact. The study include capital and operating cost estimates, technical feasibility, conservation of water and energy as well as reduced emission to the environment. The study indicated that second body condensate water is a fascinating and viable alternative for the cooling tower, resulting in a reduction of the make up water consumption and environmental impact.


Keywords : Cooling tower, Blow down, Cyclic concentration, Rinsing water, Environmental impact