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HPWH Performance Report Figure 18 shows the percentage of time each of the Rheem units spent in each heating mode. The total amount of time heating water is similar for all sites (34%-43% of the time). The primary difference between sites is the proportion of time is spent in Heat Pump mode relative to Electric Element mode. Sites with low air temp and high water draws such as Kelowna Site 4 spend more time operating with the element on than warmer sites such as unducted Kelowna Site 3. Figure 18: Rheem Operating Modes by Hours of Operation Not Heating 66% Heat Pump 33% Element 1% Kelowna Site 3 Kelowna Site 4 Heat Pump Not Heating 38% 57% Element 5% Avg. Room Temp: 20.6°C aCOP: 2.08 Avg. Outside Air Temp: 15.9°C aCOP: 1.62 V. Island Site 1 Not Heating 72% Heat Pump 25% Element 3% V. Island Site 5 Not Heating 68% Heat Pump 29% Element 3% Avg. Outside Air Temp: 9.5°C aCOP: 1.76 Avg. Outside Air Temp: 16.7°C aCOP: 2.06 17PDF Image | CO2 Integrated Heat Pump Water Heater
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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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