Experimental investigation for enhancing thermal performance of vapour compression refrigeration system using nano fluids

For increasing first law efficiency in terms of COP and Second law efficiency (Exergetic Efficiency) of VCR systems.the experiment is performed on VCR system to study the effect of silver oxide Nano particle(50nm) in base fluid of ethyl glycol (50:50 ratio with water) with concentration factor 0.02 to 0.06g by volume % on hot side of system (condenser side). For high efficiency out-put, the plate type heat exchanger has been taken in the VCR system. Test results show that the performance parameters such as exergetic efficiency of the system improved in the range of 1.9-5.96% and heating capacity was improved by 26-82% respectively by using 0.06 Vol% silver Nano fluid compared to water as cold based fluid for considerable range of cold base fluid flow rate. It was observed that the exergy destruction is decreasing in the range of 2931.28%, 65.77-70.01%, 14.31-16.03%, 17-23% in compressor, condenser, evaporator and expansion valve respectively. High volume ratio (0.015 Vol%) of silver Nano fluid shows a very less effect on thermal performance parameters of system for different base fluid mass flow rates. © 2017 ijrei.com. All rights reserved .