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The gas cooler portion is divided into three heat exchangers, with heat exchanger No 1 and 3 for the tap/district water heating application and heat exchanger No 2 (city water is used as heat sink for this heat exchanger) for the space heating/floor heating. Any of the three heat exchangers (on gas cooler) can be bypassed to operate system in various different modes. 4.1.1 System modifications It was hard to have a good control with the previous system setting (with the boundary loop) so in order to have more stable operation and good control on the system, separate supplies were used for evaporator and gas cooler as shown in figure 19. Figure 19 CO2 heat pump after modification 4.2 Working principle After the compressor CO2 passes through the oil separator where the lubricant oil is removed from CO2 and then it flows through the gas cooler, in the gas cooler portion heat is transferred from CO2 to the cooling medium by virtue of the temperature difference. The CO2 then flows through the internal heat exchanger (to heat up the CO2 before entry to the compressor) mass 20PDF 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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