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4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 8000 8500 35% 30% 25% 20% 15% 10% 5% 0% 9000 9500 Results from compressor data Water 16-60 oC Gas cooler pressure (kPa) COP at 0C evaporation COP at -5C evaporation %diff at 5C evaporation COP at 5C evaporation % diff at 0C evaporation %diff at -5C evaporation Figure 37 Variation in COP with CO2 mass flow from compressor data %age difference in COP is defined as following Case B System operation with 3rd heat exchanger in operation only for tap water heating to 50 oC at three evaporation temperatures. 3.5 3 2.5 2 1.5 1 0.5 0 7000 7500 8000 8500 25% 20% 15% 10% 5% 0% 9000 9500 COP from compressor data Water 19/50 oC Gas cooler pressure (kPa) COP at 5C evaporation COP at 0C evaporation %diff at -5C evaporation COP at -5C evaporation %diff at 0C evaporation %diff at 5C evaporation Figure 38 COP and variation in COP with gas cooler pressure 35 COP COP % difference COP %age difference COPPDF Image | heat recovery from R744 based refrigeration system
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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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