Journal ArticleDOI
Experimental Study on the Replacement of HFC-R134a by Hydrocarbons in Automotive Air Conditioning System
Mohd Rozi Mohd Perang,Henry Nasution,Abdul Latiff Zulkarnain,Azhar Abdul Aziz,Afiq Aiman Dahlan +4 more
- Vol. 388, pp 111-115
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TLDR
The results of the performance characteristics of the HCR indicate the encouraging enhancement of the automotive air conditioning system compared to Hydrofluorocarbon refrigerant (HFC-R134a) as discussed by the authors.Abstract:
The HFC-R134a and hydrocarbon refrigerant (HCR) will be evaluated on the automotive air conditioning (AAC) experimental test rig which completed with the AAC system including the blower, evaporator, condenser, radiator, electric motor, compressor, alternator and equipped with the simulation room acting (equipped with internal heat load) as the passenger compartment. The electric motor operated as a car’s engine and will drive the compressor simultaneously to the alternator to recharge the battery. The tests have been performed by varying the motor speed; 1000, 2000 and 3000 rpm, temperature set-point; 21 and 230C, and internal heat loads; 0, 500, 700 and 1000 W. The results of the performance characteristics of the HCR indicate the encouraging enhancement of the AAC system compared to Hydrofluorocarbon refrigerant (HFC-R134a).read more
References
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Book
Thermodynamics : An Engineering Approach
Yunus A. Cengel,Michael A. Boles +1 more
TL;DR: The first law of thermodynamics -closed systems, control volumes, and the second law of entropy -a measure of disorder energy -are the properties of pure substances of high-speed fluid flow as mentioned in this paper.
Journal ArticleDOI
Hydrocarbons as refrigerants — an overview
TL;DR: In this article, the possibilities and problems of using hydrocarbons as working fluids in refrigerating equipment are discussed, and an overview of safety standards is given, and different hydrocarbon alternatives are listed and characteristics in terms of thermodynamic cycles and heat transfer are shown.
Journal ArticleDOI
Experimental study of hydrocarbon mixtures to replace HFC-134a in a domestic refrigerator
Somchai Wongwises,Nares Chimres +1 more
TL;DR: In this article, an experimental study on the application of hydrocarbon mixtures to replace HFC-134a in a domestic refrigerator is presented, where the consumed energy, compressor power and refrigerant temperature and pressure at the inlet and outlet of the compressor are recorded and analyzed as well as the distributions of temperature at various positions in the refrigerator.
Journal ArticleDOI
Testing of propane/isobutane mixture in domestic refrigerators
TL;DR: In this paper, the performance of a propane/isobutane (R290/R600a) mixture was examined for domestic refrigerators, and the experimental results obtained with the same compressor indicated that the mixture at 0.6 mass fraction of propane has a 3-4% higher energy efficiency and a somewhat faster cooling rate than CFC12.