CO2 HEAT PUMPS FOR COMMERCIAL BUILDING APPLICATIONS

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CO2 HEAT PUMPS FOR COMMERCIAL BUILDING APPLICATIONS ( co2-heat-pumps-for-commercial-building-applications )

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gives the scope of inclusion of intermittent power sources such as solar PV-T technology. Finding optimum thermal storage capacity for reasonable response of time-dependent demands at minimum electricity will makes the system most attractive. Figure 3-8. Potential use of storage. Heier et al. (2014) reviewed the various storage techniques which are categorized in Figure 3-9. The CO2 heat pump system can make use of storage that falls in the category: ‘Storage in HVAC’. Sensible heat storage makes use of the specific heat of the storage medium. Thermal Energy Storage (TES) can be stored at wide range of temperature as sensible heat, latent heat and chemical energy using chemical reactions.The most common sensible heat storage, which will also be discussed in this thesis, is the water storage. However, the storage capacity is limited by the specific heat. Phase change materials (PCMs) make use of the latent heat of storage and can offer higher storage capcity. A suitable PCM is dicussed in the following sub chapter. International Renewable Energy Agency (2013) briefs the various thermal storage technologies available and their commercialization status. It states that storage systems can be defined in terms 34

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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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