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Influence of compressor oil admixtures on theoretical efficiency of a compressor system |
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| Authors: | Vitaly P Zhelezny Sergey V Nichenko Yury V Semenyuk Boris V Kosoy Ravi Kumar |
| Affiliation: | 1. The Energy and Environment Research Group (TEERG), Mechanical Engineering Department, Covenant University, Ogun State, Nigeria;2. Center for African Studies, University of California, Berkeley, USA;3. Ph.D Research Scholar, IKGPTU, Kapurthala, Punjab, India;4. IoT-Enabled Smart and Connected Communities (SmartCU) Research Cluster, Department of Electrical and Information Engineering, Covenant University, Ota, Nigeria;5. Mechanical Engineering Department, Michael Okpara University of Agriculture, Umudike P.M.B 7276, Nigeria |
| Abstract: | This paper presents a theoretical evaluation of the influence of compressor oil admixtures on the thermodynamic performance of a vapor compression system using natural refrigerant R600a. The performance determination is based on the developed pressure–enthalpy diagrams (P–h) for the refrigerant oil solution (isobutane-mineral compressor oil Azmol). A method for calculating the enthalpy of refrigerant–oil solutions has been proposed and the influence of the compressor oil admixtures to isotherms the pressure–enthalpy diagrams has been analyzed. The change of enthalpy at the different oil concentrations in the working fluid in an evaporator has been investigated. An application of the developed refrigerant–oil P–h diagrams for the theoretical evaluation of the efficiency of the vapor compression systems is also demonstrated. |
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