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2509, Page 5 6 5 4 3 2 1 0 H-20a M-20a L-20a H-15a M-15a L-15a H-10a M-10a L-10a H-10c M-10c L-10c Condition R134a Baseline R134a/R744 Blend Figure 4: Capacity Comparison Between R134a and R134a/R744 Blend 2.5 2 1.5 1 0.5 0 H-20a M-20a L-20a H-15a M-15a L-15a H-10a M-10a L-10a H-10c M-10c L-10c Condition R134a Baseline R134a/R744 Blend Figure 5: COP Comparison Between R134a and R134a/R744 Blend Control optimization was performed for the R134a/R744 blend by varying the electronic expansion valve and the compressor speed while maintaining all other conditions constant. The subcooling was increased while reducing the compressor speed to maintain a constant heating capacity as shown in Figure 6. As the subcooling increased the compressor power dropped and the COP increased. 15th International Refrigeration and Air Conditioning Conference at Purdue, July 14-17, 2014 COP (-) Q (kW)PDF Image | Mobile Heat Pump Exploration Using R445A and R744
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CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
Heat Pumps CO2 ORC Heat Pump System Platform More Info
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