Results of an experimental study of an advanced jet-pump refrigerator operating with R245fa

An experimental jet-pump refrigeration system was designed and constructed to assess the performance of R245fa (1,1,1,3,3-pentafluoropropane) as a suitable refrigerant. The paper describes and evaluates the results of experimental tests over a range of operating conditions. In addition, the effects...

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Bibliographic Details
Published in:Applied thermal engineering 2007-12, Vol.27 (17), p.2833-2840
Main Authors: Eames, Ian W., Ablwaifa, Ali E., Petrenko, Volodymyr
Format: Article
Language:English
Subjects:
Air conditioning. Ventilation
Applied sciences
Ejector
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Experimental data
Heat transfer
Heating, air conditioning and ventilation
Jet-pump
R245fa
Refrigerating engineering
Refrigerating engineering. Cryogenics. Food conservation
Refrigeration system
Refrigerator
Techniques, equipment. Control. Metering
Techniques. Materials
Theoretical studies. Data and constants. Metering
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Summary:An experimental jet-pump refrigeration system was designed and constructed to assess the performance of R245fa (1,1,1,3,3-pentafluoropropane) as a suitable refrigerant. The paper describes and evaluates the results of experimental tests over a range of operating conditions. In addition, the effects of primary nozzle geometry on jet-pump performance are reported. Performance maps, useful for practical design and control are also provided. Experimental values of coefficient of performance (COP) between 0.25 and 0.7 were obtained. These results demonstrate that low-grade heat can be used to drive efficient jet-pump refrigeration systems, using R245fa as their working fluid, for high temperature applications, such air conditioning.
ISSN:1359-4311
DOI:10.1016/j.applthermaleng.2006.12.009