Hao Pengfei, Wang Fenghao, Wang Zhihua, et al. Experimental Research on a Novel Frost-free Air-source Heat Pump Water Heater System Coupling with Thermal Storage and Dehumidification[J]. Journal of refrigeration, 2015, 36(4).
DOI:
Hao Pengfei, Wang Fenghao, Wang Zhihua, et al. Experimental Research on a Novel Frost-free Air-source Heat Pump Water Heater System Coupling with Thermal Storage and Dehumidification[J]. Journal of refrigeration, 2015, 36(4). DOI: 10.3969/j.issn.0253-4339.2015.04.085.
Experimental Research on a Novel Frost-free Air-source Heat Pump Water Heater System Coupling with Thermal Storage and Dehumidification
A novel frost-free air-source heat pump water heater applying dehumidification device and thermal storage on the basis of traditional system is studied in this paper. The operation mode of this system includes heating mode and regeneration mode. An experimental apparatus is built up to study this system
and according to the experiment
the frost-free operating time of this system is 32 min
34 min and 36min respectively when the temperature of air is ﹣3 ℃
0 ℃
3 ℃ and the relative humidity is 85%. And the temperature is high enough for the regeneration of desiccant
which could keep the heat pump heating water continuously. Besides
the COP of this system at temperature of ﹣3 ℃ and 3 ℃ is 17.9% and 3.4% higher than the reverse cycle defrosting system in the same conditions
which proves that this new system has better performance under low environment temperature.