Laboratory tests of a residential low temperature water source heat pump

Conference · Wed Jun 01 04:00:00 EDT 1983

OSTI ID:5973114

Mei, V C

A residential unitary low-temperature water source heat pump was tested in the laboratory. Tests were performed over a broad range of source-water temperature (7.2/sup 0/C to 21.1/sup 0/C) and water flow rates (3.2 x 10/sup -4/ m/sup 3//s to 8.2 x 10/sup -4/ m/sup 3//s). The heat-pump capacity and coefficient of performance (COP) were found to be linearly related to the source-water temperatures. For cyclic operation over the tested sourced-water temperature range, the coefficient of degradation, C/sub D/, ranged from 0.196 to 0.137 for heating, and from 0.131 to 0.161 for cooling. The effect of inlet-air humidity was also studied for cooling-mode operation. A sample calculation is included to demonstrate the application of the test results in calculating the annual performance factor (APF). The test results are used to form a data base on the performance of a typical residential unitary low-temperature water-source heat pump.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5973114
• Report Number(s): CONF-830640-2; ON: DE83014135
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320101* -- Energy Conservation
Consumption
& Utilization-- Residential Buildings-- (-1987)
BUILDINGS
CAPACITY
COEFFICIENT OF PERFORMANCE
COOLING
FLOW RATE
HEAT PUMPS
HEATING
PERFORMANCE TESTING
RESIDENTIAL BUILDINGS
TESTING
WATER SOURCE HEAT PUMPS