Comparison of field performance of a high efficiency heat pump with an without a desuperheater water heater
An air-to-air heat pump (COP = 3.11 at 47/sup 0/F (8.3/sup 0/C)) run alternately with an electric-resistance water heater and a desuperheater water heater was tested under field conditions at a site near Knoxville, TN. Results from these tests indicate that the desuperheater system has an annual performance factor (measured over a six-month period consisting of three winter and three summer months) 14% better than that of the system using electric resistance water heating. An analytical model predicts a 21% improvement over an entire year with average weather for the desuperheater system. The simple payback period ranges from seven years (for a 21% improvement) to about nine years (for a 14% improvement).
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5308598
- Report Number(s):
- CONF-840124-1; ON: DE84005816
- Resource Relation:
- Conference: American Society of Heating, Refrigerating and Air-Conditioning Engineers meeting, Atlanta, GA, USA, 29 Jan 1984
- Country of Publication:
- United States
- Language:
- English
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WATER HEATERS
WASTE HEAT UTILIZATION
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ELECTRIC HEATING
MATHEMATICAL MODELS
APPLIANCES
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320100* - Energy Conservation
Consumption
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