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CHAPTER 3: PUJ",lP Sllv1ULATION MODEL 68 • • y y 2.3263x10-12x2 -4.7418x10-8x+2.6913x10-4 R2 =9.8358x10-1 -6907x10-16x2 +1.0683x10-11x-4.147x10-8 [3.15] [3.16] R2 =9.984x10-1 All of the above fitted equations are reasonable fittings, with 'x' being the common denominator for the discharge pressure. The coefficients from the equation describing the compressor efficiency in terms of evaporating pressure is plotted against the corresponding discharge pressure as shown in table 3.4. Table 3.4: Coefficients from compressor efficiency equation against the suitable discharge pressure. Pdis as a4 a3 a2 a1 aO ! 7500 2.0BE+01 7500: 2.15E+01 9000 i 1.24E+01 12000 -1.63E+01 -3.47E-02 -3.5BE-02 -2.0BE-02 2.7BE-02 2.32E-05 2.39E-05 1.41 E-05 -1.79E-05 • -7.53E-09 -7.74E-09 -4.61 E-09 5.63E-09 1.19E-12· 1.22E-12 7.2BE-13 -B.72E-13 -7.2BE-17 . -7.4BE-17 ! -4.46E-17 5.30E-17 ! The following plots are made according to table 3.4. The plots are shown in figures 3.12,3.13,3.14,3.15,3.16 and 3.17. 2.50E+01 2.00E+01 1.50E+01 1.00E+01 5.00£+00 O.OOE+OO -5.00E+00 -1.00E+01 ·1.50E+01 -2.00E+01 A Techno-Economical Analysis of a CO, Heat Pump_ School ofMechanical Engineering, North-West University Figure 3.12: Coefficients a5 against discharge pressure.PDF 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
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