Hydrocarbons as Alternative Refrigerants in Domestic Refrigerators
Parashurama S1, C. Ahamed Saleel2, Govindegowda M. S3, S. A. Khan4

1Parashurama S, Department of Mechanical Engineering, Ekalavya Institute of Technology, Chamarajanagart, India.

2C. Ahamed Saleel, Department Mechanical Engineering, College of Engineering, King Khalid University, Abha, Kingdom, Saudi Arabia.

3Govindegowda M. S., Department Mechanical Engineering, Vivekananda College of Engineering and Technology, Puttur, India.

4S. A. Khan, Department of Mechanical Engineering, Faculty of Engineering, International Islamic University Malaysia, Kuala Lumpur, Malaysia.

Manuscript received on 08 April 2019 | Revised Manuscript received on 15 April 2019 | Manuscript Published on 24 May 2019 | PP: 496-501 | Volume-8 Issue-6S3 April 2019 | Retrieval Number: F11000486S319/19©BEIESP

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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open-access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: The thermodynamic and volumetric properties of hydrocarbons namely Propane, Cyclopropane, Propene, Methyl acetylene, Propadiene and Dimethyether as replacements to substitute R134a have been assessed by means of SRK equation of state. The pressure magnitude, enthalpy, entropy, and specific capacity at 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 thermodynamic investigation of 89W local refrigerator. The theoretical enactment of the hydrocarbons have 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 direct substitute. Also implications with respect to material and lubricant oil compatibility, heat transfer characteristics are discussed.

Keywords: CFC, HCFC, Discharge Temperature, Compressor Work Input, Discharge Temperature, Displacement Volume, Volumetric Efficiency.
Scope of the Article: Mechanical Maintenance