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Figure 9. Daily Average Air and Water Temperatures Variables are defined as: Temp HPWH OUT: Temperature of water leaving the HPWH bank and entering ST-3. Temp HW: Temperature of the hot water delivered to the recirculation loop. Temp CW: Incoming municipal water temperature, which shows a seasonal pattern of a high of ~70°F in August. Lowest temperatures are typically measured between January and February. OAT NOAA: Outside Air Temperature (OAT) as recorded by NOAA weather station. OAT shows a similar seasonal trend as Temp CW. Water Use Collected data included hot water use by building occupants’ over the course of the project. Several interesting metrics are quantifiable through measured flow data. Figure 10 shows hourly average demand in gallons per minute (GPM) by the hour of the day, and by weekend or weekday. Individual days are shown in light gray. Colored lines indicate percentile of all data, with the middle green line (50%) being the median. BONNEVILLE POWER ADMINISTRATION 13PDF 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
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