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4 – Test Rig Design and Experimental Methods 4.1.2.2 The Compressor The prototype CO2 heat pump unit was initially equipped with a Dorin CD5.0175 compressor, Figure 4.4. This is a semi-hermetic single-stage reciprocating unit with two cylinders. At a rotational speed of 1450 rpm, the swept volume is 1.75 m3/h. This corresponds to a heating capacity of approximately 6 kW at +5oC suction temperature and 35 and 85 bar suction and discharge pressure, respectively. Figure 4.4 The Dorin single-stage reciprocating CO2 compressor. During the function testing of the CO2 heat pump, the CO2 mass flow rate dropped gradually due to extensive wear and tear in the bearing for the connecting rod between the crankshaft and the piston. The compressor was therefore replaced by a prototype hermetic two-stage rolling piston compressor from Sanyo (Tadano et al., 2000), Figure 4.5. Figure 4.5 The Sanyo two-stage rolling piston compressor (prototype). 72PDF 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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