Title :
Design And Heating Performance Of Solar-Assisted Heat Pump Water Heater With Truncated-Cone-Type Evaporator
Author :
Lan Qing ; Li Ming ; Xia Chaofeng ; Ji Xu
Author_Institution :
Solar Energy Res. Inst., Yunnan Normal Univ., Kunming, China
Abstract :
Configuration of solar-assisted heat pump water heater with an innovative truncated-cone-type evaporator was designed. Mathematical models of parts of every system were set up. The results showed that when the average absorbance of solar radiation of a solar-assisted heat pump water heater with a truncated-cone-type evaporator was 7.2 MJ, the coefficient of performance(COP) of the system was 3.1 under poor solar radiation in December in Kunming, China. When the system absorbed 15.6 MJ of solar radiation, the system´s COP could reach 3.8. The results indicate that the solar-assisted heat pump water heater with truncated-cone-type evaporator has high heating performance and can meet the demands of water supply.
Keywords :
evaporation; heat pumps; solar absorber-convertors; solar heating; COP; China; coefficient of performance; heating performance; solar radiation; solar-assisted heat pump water heater; system design; truncated-cone-type evaporator; Copper; Heat pumps; Prototypes; Solar energy; Solar heating; Solar radiation; Temperature; Thermal expansion; Water heating; Water storage;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4812-8
Electronic_ISBN :
978-1-4244-4813-5
DOI :
10.1109/APPEEC.2010.5448577
