کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5017220 | 1466392 | 2017 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Experimental study of a subcritical heat pump booster for sanitary hot water production using a subcooler in order to enhance the efficiency of the system with a natural refrigerant (R290) Experimental study of a subcritical heat pump booster for sanitary hot water production using a subcooler in order to enhance the efficiency of the system with a natural refrigerant (R290)](/preview/png/5017220.png)
- Experimental facilities for the characterization of heat pumps SHW were built.
- Subcooler increases the efficiency of a subcritical heat pump with high water lift.
- The approach is applied to water-to-water heat pump dedicated to energy recovery.
- This configuration reaches COPs significantly higher than without the subcooler.
This paper presents the experimental results obtained from a new heat pump prototype for sanitary hot water production, in the application of heat recovery from water sources like sewage water or condensation loops (typical temperature condition between 10â°C and 30â°C). The system configuration is able to produce a high degree of subcooling in order to take advantage from the high water temperature glide (typical value for sanitary hot water production is 10â°C to 60â°C). Subcooling is made by using a separate heat exchanger from the condenser (subcooler). The obtained results have shown a high degree of improvement by making subcooling. COP is 5.61 in nominal conditions, which is about 31% higher than the same cycle working without subcooling (Nominal point: inlet/outlet water temperature at evaporator is 20â°C/15â°C and the water inlet/outlet temperature in the heat sink is 10â°C and 60â°C).
Journal: International Journal of Refrigeration - Volume 73, January 2017, Pages 226-234