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Table 2-1. Model parameters. *Parameters to calculate the energy savings of the proposed system compared Source: Wade Utility Plant, Brenton Dunham Superheat 10°C Gas Cooler pinch temperature 5°C Evaporator pinch temperature 10°C Air cooler pinch temperature 10°C Isentropic Efficiency(ɳis) 70% Tsupply,dh 62°C Treturn,dh 52°C Tsinitial 62°C Conventional System Parameters* Generator efficiency(ɳgen) 80% Turbine efficiency(ɳturb) 80% COPelectric 6.38 COPsteam 1.60 It should be noted that in the summer months, the Qgascooler includes the gas cooler heat from both the gas cooler and intercooler. Similarly, during the summer months, power is consumed by two compressor and both of them should be taken into consideration while calculating the COP. If the heat load of the building cannot be met by the heating generated by the CO2 heat pump system, calculations are done again with a higher discharge pressure. An optimum discharge pressure is such that the heating load is completely met. The cooling COP is high at lower high-side pressures. However, the recovered heat in the gas cooler is not sufficient for heating purpose of the MATH building at such low high-side pressures. Instead, if the cycle is made to operate at a higher pressure, more heat can be obtained at the cost of cooling COP. The loss in cooling COP is made up by the gain in heating COP and thus, results in approximately the same total COP. This is represented in the Figure 21 Model Parameters ValuePDF Image | CO2 HEAT PUMPS FOR COMMERCIAL BUILDING APPLICATIONS
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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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