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CHAPTER3:HEAT PUM:P SIMULATIONMODEL 57 --------~------------~ .....--.~--------- 8 67 Illlemal Heal Ex.chattger 4 Figure 3.5: CO2 heat pump diagram. A simple cycle simulation has been done using Engineering Equation Solver (EES). The data used for this simulation can be found in table 3.1 The EES programming code and results are found in Appendix A. The methodology behind the cycle simulation is given below, while Figure 3.4 shows a T-s diagram indicating some critical points to refer to the methodology of the cycle simulation: • • • • • • • (5) The suction pressure, evaporating temperature and refrigeration capacity are known variables found in table 3.1. A constant enthalpy is assumed over the expansion valve. The quality of the refrigerant at the inlet to the evaporator is calculated in terms of enthalpy and suction pressure. The entropy is determined in terms of the quality of the refrigerant and the suction pressure. (6) It is assumed that evaporation takes place at a constant pressure throL1gh the evaporator. It is also assumed that there is no pressure drop through the liquid receiver and internal heat exchanger. A superheat of 10K is assumed in the evaporator. A Techno-Economical Analysis of a CO2 Heat Pump. School ofMechanical Engineering, North-West University Pressure ReIleve Valve (120bar) 2 Compressor 3PDF Image | CO2 HEAT PUMP Analysis
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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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