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cylindrical single-shell 200 litre DHW storage tank. A movable insulating plate, which was applied to reduce the exergy losses in the tank, was also tested in the latter test rig. ♦ Chapter 5, Experimental Results, provides a detailed presentation and analysis of the experimental results from the two test rigs described in Chapter 4. ♦ Chapter 6, Modelling, presents the thermodynamic background and mathematical basis for two computer models that were developed to study the performance of tripartite counter-flow tube-in-tube CO2 gas coolers and cylindrical single-shell DHW tanks. ♦ Chapter 7, Discussion and Analysis, provides an overview and a discussion of the most important findings from the experiments and simulations regarding the CO2 heat pump unit and the DHW tank. A thermodynamic (exergy) analysis of the prototype CO2 heat pump as well as an overall estimate of the SPF for two CO2 heat pump systems and a state-of-the-art heat pump system, are also presented. ♦ Chapter 8, Conclusions and Suggestions for Further Work, presents the main conclusions from the doctoral work and suggestions for further work. ♦ Appendices A) Outlines and discusses important properties and characteristics of CO2 as a working fluid in heat pumps. B) Presents standards for testing of brine-to-water and water-to- water heat pumps and recent test results for residential units. C) Provides an overview of the test results for the prototype CO2 heat pump unit. D) Presents the uncertainties in the single measurements and the computed values for the prototype CO2 heat pump unit. E) Displays photos of the prototype CO2 heat pump unit. F) Presents characteristic properties of DHW systems. G) Discusses the design of the balancing weight and the selection of plate material for a movable insulating plate in DHW tanks. H) Presents the test conditions for the movable insulating plates. I) Presents the NMF and IDA files for the transient two-dimen- sional heat conduction model for cylindrical DHW tanks. 1 – Introduction 5PDF 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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