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the system delivered a coefficient of performance (COP) in excess of 3 and provided an average of 20 gallons of hot water per day per apartment. Over the monitoring period there were periodic equipment issues. Even so, system efficiency was maintained during these instances. This demonstrated that domestic hot water for a large building can be supplied by a remarkably small heat pump plant - just 5-tons of nominal capacity, which sometimes functioned for long periods with less than 4-tons of capacity and minimal backup system contribution. These events also highlighted the value of Measurement & Verification monitoring in emerging technology installations, and the need for automatic remote alarm capability for these systems. Heat pump water heaters are an emerging technology in the domestic water heating market, especially in multifamily building applications. Because of this, installation costs have been high. However, with market growth, established design and installation practices and increased competition costs will come down. The Sanden CO2 HPWH is a versatile product and is very efficient. The novel “swing tank” design and applications require additional research but have demonstrated results for reducing water heating and temperature maintenance loads in multifamily buildings across Pacific Northwest climate zone BONNEVILLE POWER ADMINISTRATION viPDF Image | CO2 Heat Pump Water Heater Multifamily Retrofit
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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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