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5 – Experimental Results 2.12 1.79 1.44 2.57 2.17 1.72 DHW 60°C DHW 70°C SH 33/28°C SH 35/30°C SH 40/35°C Figure 5.41 The ratio between the total heating capacity of the DHW gas cooler units during operation in the DHW mode and the combined mode at optimum high-side pressure. 5.1.3.6 Compressor Performance Power Input Figure 5.42 shows the relationship between the measured power input and the gas cooler (high-side) pressure at constant inlet conditions for the prototype rolling piston CO2 compressor. The evaporation temperature was -5oC (3.046 MPa), the suction gas superheating was 2.4 K ±0.6 K and the CO2 mass flow rate was 1.42 kg/min ±2%. 2.2 2.0 1.8 1.6 7.5 8.0 8.5 9.0 9.5 10.0 10.5 Gas Cooler Pressure, Pgc [MPa] P = 0.1945·Pgc + 0.1365 Figure 5.42 The measured power input for the prototype CO2 com- pressor as a function of the gas cooler pressure at constant inlet conditions (approximately 3.046 MPa, -2.5oC). 148 Power Input Compressor, P [-]PDF Image | Residential CO2 Heat Pump System for Combined
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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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