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cycle operates. This resulted in the need for a thorough understanding of CO2 and its properties. It is also important to understand the techno-economical advantages/disadvantages of CO2 systems compared to conventional refrigerant systems, for an energy efficient solution. A CO2 system has the potential to benefit Eskom in its drive towards more energy efficient use of the electricity it generates. 1.2 Purpose of this study A thorough study is to be done on CO2 to start the research and development at the North-West University, Le. regarding this refrigerant to be used in a water heating heat pump system. The purpose of this study is to conduct a techno-economic analysis of a water heating heat pump using CO2 as refrigerant compared to a conventional R-22 heat pump with similar capacities. Comparisons made are based on simulated models for each system. To be able to do such an analysis, a thorough literature study is required to attain a greater understanding of the properties of CO2 and to investigate the feasibility of the implementation of such a system. 1.3 Method ofinvestigation To satisfy the purpose described in section 1.2, the study will consist of the following: • A detailed literature study on the properties of CO2 as refrigerant and the cycle implementation issues will be done. • • • A system simulation model of a CO2 heat pump cycle will be developed. The results from the model will be compared against performance data on hand for a commercially available R-22 heat pump cycle, to identify the energy efficiency potential of using CO2 as refrigerant. 80th the simulated models will be compared to each other using the WHSIM Statistical program (Rousseau, 2006). A Techno-Economical Analysis of a CO2 Heat Pump. School ofMechanical Engineering, North-West University 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
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