Experimental analysis on heat transfer performance of cooling tower with nanofluid

Cooling towers have been widely used to dissipate heat by reducing temperature of hot water steam from heat sources to heat sink. However, the effectiveness of cooling tower depends on flow rates of air and water and water temperature. Hence, heat transfer process is very important since the heat comes from steam after spinning turbine must be removed otherwise the system will collapse due to overheating. Nanofluids are important coolant which provide new opportunities in excellent heat transfer performance, thus they can be regarded as the next-generation heat transfer fluids. The present study examined the effects of water and nanofluids as coolants on heat transfer coefficient, heat transfer rate, pressure drop and pumping power in the counter flow induced draft cooling tower and finding out the effect of adding toner as nanofluid to circulating cooling fluids. This was done by establishing and modifying experimental set up constructing computer program and varying the quality of circulating fluids by adding together at different ratio. Counter flow induced draft cooling tower and computer program give the various data required for calculation. From the result obtained a comparative study on terms of tower characteristics, water to air flow ratio (L/G), efficiency, range, percentage of make-up water and evaporation heat loss are presented in graphical form. It is estimated that efficiency and range increase by 8% & 4°c in average respectively. Furthermore, efficiency varies from 28.5 % to 39.15 % in case of cooling tower with water whereas with ink it is 42.55 % to 58.42 %which indicates the good performance of the developed system.Cooling towers have been widely used to dissipate heat by reducing temperature of hot water steam from heat sources to heat sink. However, the effectiveness of cooling tower depends on flow rates of air and water and water temperature. Hence, heat transfer process is very important since the heat comes from steam after spinning turbine must be removed otherwise the system will collapse due to overheating. Nanofluids are important coolant which provide new opportunities in excellent heat transfer performance, thus they can be regarded as the next-generation heat transfer fluids. The present study examined the effects of water and nanofluids as coolants on heat transfer coefficient, heat transfer rate, pressure drop and pumping power in the counter flow induced draft cooling tower and finding out the effect of adding toner as nanofluid to circulating cooling fluids. This was done by establishing and modifying experimental set up constructing computer program and varying the quality of circulating fluids by ...