Effect of Secondary Refrigerants and Combination on Performance of Customized Central Cooling System

This research mainly focuses on the energy saving measures in a customized cooling plant and no compromise had been made while maintaining the operating temperature as per requirements. After considering different geographical and thermal aspects of required cooling space various measurement and data had been collected. On the basis of all these factor and accordingly manufactures catalogue more tonnage requirement was there as compared to this customized one. It has been observed that combination of secondary refrigerant such as water and glycol produces more cooling effect in comparison with water alone. Comparison of energy consumption of water alone and water glycol combination has been performed using experimental setup in which secondary refrigerant is pre cooled with the help of primary refrigerant R134a before passing through cooling coils. The coefficient of performance of the combination is found to be higher than the water alone and hence provides better cooling. At the same time it also noted that energy consumption in the case of combination is slight less than the water alone and thus the combination refrigerants is better and cost effective in this case.