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Hydrocarbons as alternative refrigerants in domestic refrigerators

S, Parashurama and Saleel, C. Ahmed and M. S., Govindegowda and Khan, Sher Afghan (2019) Hydrocarbons as alternative refrigerants in domestic refrigerators. International Journal of Innovative Technology and Exploring Engineering (IJITEE), 8 (6S3). pp. 496-501. ISSN 2278-3075

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The thermodynamic and volumetric properties of hydrocarbons namely Propane, Cyclopropane, Propene, Methyl acetylene, Propadiene and Dimethyl ether as replacements to substitute R134a have been assessed by means of SRK equation of state. The pressure magnitude, enthalpy, entropy, and specific capacity at the vapor and fluid phase have been analyzed over the temperature range from -250C to +55 0C. Ten state point vapor compression cycle is used to carry out the thermodynamic investigation of 89W local refrigerator. The theoretical enactment of the hydrocarbons has been comparatively assessed using standard refrigeration parameters such as displacement volume, volumetric efficiency, starting torque, refrigerating effect, discharge temperature, COP and rating of the motor. According to our results, Propane and Propene are appropriate and recommended as alternatives of R134a with lower displacement compressor and Cyclopropane as a direct substitute. Also implications with respect to material and lubricant oil compatibility, heat transfer characteristics are discussed.

Item Type: Article (Journal)
Additional Information: 7395/72477
Uncontrolled Keywords: CFC, HCFC, Discharge temperature, Compressor work input, Discharge temperature, Displacement volume, volumetric efficiency
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ163.26 Energy conservation
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering
Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User: Prof. Dr. Sher Afghan Khan
Date Deposited: 10 Jun 2019 16:17
Last Modified: 10 Jun 2019 16:19
URI: http://irep.iium.edu.my/id/eprint/72477

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