Performance evaluation of a selected three-ton air-to-air heat pump in the heating mode
An air-to-air split system residential heat pump of nominal three-ton capacity was instrumented and tested in the heating mode under laboratory conditions. This was the second of a planned series of experiments to obtain a data base of system and component performance for heat pumps. The system was evaluated under both steady-state and frosting-defrosting conditions; sensitivity of the system performance to variations in the refrigerant charge was measured. From the steady-state tests, the heating capacity and coefficient of performance were computed, and evaluations were made of the performance parameters of the fan and fan motor units, the heat exchangers and refrigerant metering device, and the compressor. System heat losses were analyzed. The frosting-defrosting tests allowed the observation of system and component performance under dynamic conditions, and measurement of performance degradation under frosting conditions.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5712148
- Report Number(s):
- ORNL/CON-34
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AIR SOURCE HEAT PUMPS
PERFORMANCE TESTING
HOUSES
SPACE HEATING
COEFFICIENT OF PERFORMANCE
EXPERIMENTAL DATA
FROST
GRAPHS
HEAT LOSSES
TABLES
BUILDINGS
DATA
DATA FORMS
ENERGY LOSSES
HEAT PUMPS
HEATING
ICE
INFORMATION
LOSSES
NUMERICAL DATA
RESIDENTIAL BUILDINGS
TESTING
320101* - Energy Conservation
Consumption
& Utilization- Residential Buildings- (-1987)