On the contrary, R-600a showed a higher coefficient of performance than that of the R-22 by about (3) % for the investigation range of operating conditions. R-410A exhibited a lower coefficient of performance than that of the R-22 refrigerant by (1-5) %. The data showed that R-290 revealed similar coefficient of performance as that of R-22. The analysis was carried out at the evaporation and condensation temperature ranges of (-25 to -5) ☌ and (15 to 35) ☌ respectively. The traditional R-22 and its substitute R410A were also investigated in a direct expansion geothermal system. Two hydrocarbon refrigerants, R290 and R600a were suggested to be implemented in a closed loop system to produce chilled water for air conditioning purposes. doi: 10.12691/rse-7-1-2Ībstract This investigation focuses on the renewable geothermal energy source utilized as a reservoir for a water chiller unit in the cooling mode. The Utilization of Renewable Energy Source and Environment Friendly Refrigerants in Cooling Mode. View Full Text Full Text PDF Full Text ePUBĪli H.
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