Abstract
The refrigeration system excution with the nano oil was explored to enhance the coefficient of performance (COP) of the vapor compression refrigeration system (VCRS) using CARE 30 which is a mixture of 50% refrigerant R200 and 50% refrigerant R600a in which 1 gram of Copper oxide (CuO) nano particles (NP) are used. Nano lubricant was used in the compressor of R-134a refrigeration system (compatible with CARE 30) mixed with polyolester (POE) oil. To execute this examination, a test setup was planned and fabricated in the workshop. The outcome demonstrates that CARE 30 and POE oil with CuO NP works typically and securely in the refrigeration system. The refrigeration system performance found is better than the customary CARE 30 and POE oil only refrigertion system. Therefore, the nano lubricant (POE compressor lubricant mixed with CuO NP) could be used as a vital piece of refrigeration system to lower the energy consumption and for the enhancement of COP of VCRS.
Highlights
The refrigeration system excution with the nano oil was explored to enhance the coefficient of performance (COP) of the vapor compression refrigeration system (VCRS) using CARE 30 which is a mixture of 50% refrigerant R200 and 50% refrigerant R600a in which 1 gram of Copper oxide (CuO) nano particles (NP) are used
When R-134a test rig is charged with CARE 30 added with 1 gram of CuO NP, the COP increased by 44%
The average power consumption for the CARE 30 test rig is 0.066 kWh, when 1 gram of CuO NP added; the average power consumption is decreased to 0.0484 kWh
Summary
The refrigeration system excution with the nano oil was explored to enhance the coefficient of performance (COP) of the vapor compression refrigeration system (VCRS) using CARE 30 which is a mixture of 50% refrigerant R200 and 50% refrigerant R600a in which 1 gram of Copper oxide (CuO) nano particles (NP) are used. Used best practices in HVACR industry include use of hydroflourocarbon (HFC) refrigerants as per Montreal protocol [1] which has zero ozone depletion potential (ODP). These HFC have higher global warming potential (GWP) contributing to environment change and is one of the threat to human survival on earth. It is important and unavoidable to have HVACR systems used in the industry need less energy input as much as possible and the systems to deliver high output It is the requirement of the time to find the ways to enhance the performance of refrigeration systems and materials which reduces energy consumption and has less impact. Refrigerants to give high COP for a selected working range of temperatures
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