Performance of Vapor Compression Refrigeration System using Nanoparticles – Based Mineral Oil Lubricant
Devendra1, RaviPrakash M2, N. Kapilan3, Shiv Pratap Singh Yadav4

1Devendra, Pursuing M. Tech in Thermal Power Engineering , Department of Mechanical Engineering, Nitte Meenakshi Institute of Technology, Bengaluru.
2Raviprakash M, Associate Professor in the department of Mechanical Engineering at Nitte Meenakshi institute of technology Bengaluru.
3N. Kapilan, Professor and HOD in the department of Mechanical Engineering at Nagarjuna College of Engineering and Technology, Bengaluru.
4Shiv Pratap Singh Yadav, Assistant Professor in the Department of Mechanical Engineering at Nitte Meenakshi Institute of Technology Bengaluru.

Manuscript received on 15 August 2019. | Revised Manuscript received on 25 August 2019. | Manuscript published on 30 September 2019. | PP: 730-734 | Volume-8 Issue-3 September 2019 | Retrieval Number: C3986098319/19©BEIESP | DOI: 10.35940/ijrte.C3986.098319
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Abstract: In general, mineral oil and polyester oil are used as lubricants in a refrigeration system compressor. The present work focuses mainly on the mineral oil based lubricant based on MWCNT nanoparticles. The different characterization of the multi-wall carbon nanotube (MWCNT) was performed using different methods such as Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), and Transmission Electron Microscopy (TEM), which will result in size, structure and morphology of the CNT nanoparticle. First prepare the Nano-lubricants by adding nanoparticles in mineral oil with different concentrations of 0.05, 0.075 and 0.1wt% with the help of an ultrasonicator which will give the homogeneous mixture of Nanolubricant. Nanoparticles mixed with mineral oil used in a refrigeration system work safely and normally. The experiment were conducted on refrigeration system for different concentration, namely 0.05, 0.075 and 0.1wt% which will mixed with mineral oil and without nanoparticles in mineral oil. The result shows that 0.1wt% Nanolubricant which will give higher improvement in heat transfer efficiency and increase in the Coefficient of Performance (COP) by 37%. And energy savings is 9.6%.
Keywords: Nanoparticle, Nanolubricant, Refrigeration system.

Scope of the Article: Refrigeration and Air Conditioning