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     Research Journal of Applied Sciences, Engineering and Technology

    Abstract
2012(Vol.4, Issue:16)
Article Information:

Experimental Research of Air-Source Heat Pump Water Heater in Low Temperature

Xingwang Zhu, Xueli Nie, Chaoxin Wang and Yugui Su
Corresponding Author:  Xingwang Zhu 
Submitted: March 26, 2012
Accepted: April 17, 2012
Published: August 15, 2012
Abstract:
A new type of air source heat pump water heater system with scroll compressor through middle injection of economizer in the course of compression is put forward operating reliably long and efficiently in low temperature in this study. The experimental prototype is set up, System fundamentals and the operation modes are introduced, Experimental research on operation characteristics of the unit in three different operation conditions is done in the lab of enthalpy difference; Heating capacity and COP were 8.84 kW and 2.43, respectively under the condition of environmental temperature of which is -7 and -8ÂșC, respectively for dry bulb temperature and wet bulb temperature. The result shows that the unit operates reliably long and that heating capacity and COP of the unit are improved in low temperature.

Key words:  Air source heat pump water heater, economizer, low temperature, medial injection, , ,
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Cite this Reference:
Xingwang Zhu, Xueli Nie, Chaoxin Wang and Yugui Su, . Experimental Research of Air-Source Heat Pump Water Heater in Low Temperature. Research Journal of Applied Sciences, Engineering and Technology, (16): 2740-2743.
ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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