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Table of Contents 6.2.2.4 Programming Tools and Input Parameters..........196 6.2.2.5 Verification of the Tank Model ..........................197 6.2.3 Simulation Results ............................................................. 199 6.2.3.1 The Static Thermoclines ..................................... 199 6.2.3.2 The Water Volume of the Thermocline Zone.....200 6.2.3.3 The Outlet Water Temperature from the Tank ...201 7. Discussion and Analysis .......................................................... 205 7.1 Main Findings from the Experiments and the Simulations...........205 7.1.1 Introduction ....................................................................... 205 7.1.2 Energy Efficiency ..............................................................206 7.1.2.1 The COP vs. the Temperature Levels in the Space Heating and DHW Systems......................206 7.1.2.2 The COP vs. the Evaporation Temperature ........208 7.1.2.3 The COP vs. the DHW Heating Capacity Ratio .209 7.1.2.4 The COP vs. the Thermodynamic Losses in the DHW Tank....................................................211 7.1.3 High-Side Pressure Control ............................................... 214 7.1.3.1 The Optimum High-Side Pressure ......................214 7.1.3.2 Constant or Variable High-Side Pressure?..........215 7.1.4 Design of the Tripartite gas Cooler ...................................216 7.1.4.1 The Total and the Relative Heating Capacities...216 7.1.4.2 Design Considerations ........................................217 7.2 Exergy Analysis of the Prototype CO2 Heat Pump System ..........218 7.2.1 The Combined Mode ......................................................... 218 7.2.2 The DHW Mode ................................................................ 219 7.2.3 The SH Mode.....................................................................220 7.2.4 Possibilities of Efficiency Improvements ..........................221 7.2.4.1 The Compressor .................................................. 221 7.2.4.2 The Tripartite Gas Cooler ...................................222 7.2.4.3 The Expansion V alve .......................................... 223 7.2.4.4 The Space Heating System .................................223 xviiiPDF Image | Residential CO2 Heat Pump System for Combined
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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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