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Case C Part 1 With first and 3rd heat exchanger in operation (in series configuration) for tap water heat application to set points 55, 60 and 65 oC at evaporation temperature of 0 oC. 4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 7000 COP at 55C 7500 8000 8500 40% 30% 20% 10% 0% -10% -20% 9000 9500 COP from compressor data Water 16/60 oC Gas cooler pressure (kPa) COP at 60 C COP at 65 % diff at 55 % diff at 65 % diff at 60 Figure 39 COP and variation in COP with gas cooler pressure Case C Part 2 With first and 3rd heat exchanger in operation (in series configuration) for tap water heat application to set point 60 oC at different evaporation temperatures (-5, 0 and 5oC). 5 4 3 2 1 0 7000 7500 8000 8500 40% 30% 20% 10% 0% -10% 9000 9500 COP from compressor data Water 16-60oC -1 Gas cooler side pressure (kPa) -20% COP at 5C evaporation COP at -5C evaporation %diff at 0C evaporation COP at 0C evaporation %diff at -5C evaporation %diff at 5C evaporation Figure 40 COP and variation in COP with gas cooler pressure 36 COP % difference in COP COP %difference in 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
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