PDF Publication Title:
Text from PDF Page: 021
HPWH Performance Report 6. Rheem Unit Performance 5.1 Use of Backup Heating Elements for Water Heating The daily average power consumption is more closely related to OAT in the Rheem units than the Sanden units. There is a sharp rise in the average power consumption of the Rheem units at lower temperatures due to the Rheem unit operating primarily in electric residence mode. This typically happens on days when the average daily temperature is below 5°C. On these days, the daily energy consumption is often above 15 kWh. The days above 5°C with high energy consumption are typically days with larger water draws indicated by large circles in Figure 11 below. On days with large water draws the lower tank temperature falls too quickly for the heat pump to maintain the set- point temperature and the lower electric element turns on22. The colder days with large water draws, such as February 1st, 2017 at Kelowna Site 1 are often the highest energy consumption and lowest performance days. On days with temperatures above 5°C and lower water consumption, the Rheem units operate most of the time in heat pump mode and consume less than 10 kWh on average for the day, resulting in the highest performance. Figure 11: Daily Energy Consumption vs. Ambient Air Temperature 22 The Rheem units are designed so that the tank water remains stratified, with the lower section of the tank remaining colder than the upper tank. As a comfort feature to avoid cool water delivery, the electric element in the tank kicks on, when the temperature in the lower third of the tank drops significantly below the hot water setpoint temperature. 10PDF Image | CO2 Integrated Heat Pump Water Heater
PDF Search Title:
CO2 Integrated Heat Pump Water HeaterOriginal File Name Searched:
CO2-Integrated-Heat-Pump-perf.pdfDIY PDF Search: Google It | Yahoo | Bing
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
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |