Performance Enhancement of a Refrigeration System with Silicon Carbide Nanolubricant – An Experimental Approach

MD. Mansoor Ahamed, S.M. Jameel Basha and B. Durga Prasad

Contemporary studies reveals that the application of nanoparticles in lubricating oil results in significant enhancement in thermo-physical characteristics and heat transport potential, consequently enhances the working of refrigeration system. In this work an attempt was made to improve the performance of the refrigeration system by mixing silicon carbide (SiC) nanoparticles to the polyolester oil (POE). The performance of vapour compression refrigeration system (VCRS) working with 0.3% by volume concentration of nanolubricant (NLB) and pure lubricant (PLB) was investigated at different ambient temperatures of 32ºC and 38ºC by energy utilization check and cooling capacity assessment. The results indicate that the performance of the VCRS was improved with SiC+POE oil and works conventionally and safely. Experimentation discovered that the refrigeration effect was increased by 20%, 23% and power utilization decreases maximum by 14%, 17% corresponding to ambient condition of 32ºC and 38ºC. Also results showed that the coefficient of performance (COP) has been enhanced by 10% and 35% at ambient condition of 32ºC and 38ºC when SiC+POE oil is used with 0.3% by volume fraction presenting best results. Also the experiment was run after 30 days to check the stability and reliability of the results obtained and found in accordance with the previous results with ±10% variation.

Volume 11 | Issue 8

Pages: 86-93