PDF Publication Title:
Text from PDF Page: 169
5 – Experimental Results DHW 60°C DHW 70°C DHW 80°C 1.56 1.40 1.21 1.84 1.49 SH 35/30°C 2.11 1.78 2.55 1.39 SH 33/28°C SH 40/35°C Figure 5.40 The ratio between the heating capacity of the space heating gas cooler unit during operation in the SH mode and the combined mode at optimum-high side pressure. The heating capacity of the space heating gas cooler was considerably larger during operation in the SH mode than in the combined mode due to the higher CO2 inlet temperature. The ratio between the heating capacities dropped off when the set-point for the hot water temperature was increased, since the reduced water flow rate resulted in less cool-down of the CO2 flow in the DHW reheating gas cooler. The ratio was also heavily affected by the supply/return temperatures in the space heating system, since the higher the temperature level, the higher the DHW heating capa- city ratio. The Heating Capacity of the DHW Gas Cooler Units Figure 5.41 shows the ratio between the total heating capacity of the two DHW gas cooler units during operation in the DHW mode and the com- bined mode at optimum high-side pressure and varying set-point tempera- tures. The measuring data at 80oC hot water temperature were not included, since the optimum high-side pressure in the DHW mode was not found due to motor load limitations. The heating capacity of the DHW gas cooler units was considerably larger during operation in the DHW mode than in the combined mode, since no heat was given off to the space heating system, and the fact that the discharge gas temperature was higher and the temperature approach was lower at equal set-points for the hot water temperature. The ratio dropped off when the supply/return temperatures in the space heating system was increased from 33/28 to 40/35oC, due to the considerable rise in the DHW heating capacity ratio. 147PDF Image | Residential CO2 Heat Pump System for Combined
PDF Search Title:
Residential CO2 Heat Pump System for CombinedOriginal File Name Searched:
20559406.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 (Standard Web Page)