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Blue line (from Tb to Ta) represents water heating while the other three curves shows the cooling profile of CO2 at various operating pressures. Figure 45 Lorenz efficiency with approach temperature Lorenz efficiency (actual COP compared with the Lorenz COP) is shown in figure 45 against approach temperature. With the increase in approach temperature effectiveness decreases (actual COP decreases) and hence Lorenz efficiency decreases, the same trend is shown in above shown figure. 4.3.3.1.2For the 3RD heat exchanger The similar tests were repeated with the third heat exchanger to check its effectiveness and the obtained results are discussed below. Figure 46 shows results for the calculated value of effectiveness with the variation in the approach temperature for three different evaporation temperatures. In this case a reverse trend is observed and effectiveness increases with the increase in approach temperature. 41PDF 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
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