The thermodynamic properties of hydrocarbons namely Propane, Cyclopropane, Propene, Methyl acetylene, Propadiene and Dimethyether as alternatives to replace R134a have been predicted using SRK EOS. The values of vapour pressure, liquid specific volume, vapour specific volume, liquid enthalpy, vapour enthalpy, liquid entropy, vapour entropy have been estimated over the temperature range from -250 ℃ to +550 ℃. Simulation of 89W domestic refrigerator is carried out using ten state point vapour compression cycle. The theoretical performances of the hydrocarbons have been comparatively assessed using standard refrigeration parameters. According to our results, Propane, 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.
The performance of R290 has been investigated experimentally to replace R12 in a domestic refrigerator with 3.16 cc displacement compressor. A210 litres refrigerator intended to operate with R12 is used in our study with a lower displacement compressor and longer capillary. The consumed energy, temperatures and pressures at salient points the refrigerator circuit and also temperatures at various compartments in the refrigerator are recorded. The experiments are conducted are no load performance test and ice making test with R290 as well as R12 at a surrounding temperature of 30℃. As per our results R290 is the most viable alternative to replace R12 from the view point of energy conservation without the necessity of changing lubricating oil and drier used with R12 but with a slightly lower capacity. The flammability nature can be ignored as the amount of refrigerant used is very low.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2025 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.