Refrigerator-freezer energy testing with alternative refrigerants
As a result of the Montreal Protocol that limits the production of ozone-depleting refrigerants, manufacturers are searching for alternatives to replace the R12 that is presently used in residential refrigerator-freezers. Before an alternative can be selected, several issues must be resolved. Among these are energy impacts, system compatibility, cost, and availability. In an effort to determine the energy impacts of some of the alternatives, energy consumption tests were performed in accordance with section 8 of the Association of Home Appliance Manufacturers (AHAM) standard for household refrigerators and household freezers. The results are presented for an 18 cubic foot (0.51 cubic meter), top-mount refrigerator-freezer with a static condenser using the following refrigerants: R12, R500, R12/Dimethyl-ether (DME), R22/R142b, and R134a. Conclusions from the AHAM test are that R500 and R12 /DME have a reduced energy consumption relative to R12 when replaced in the test unit with no modifications to the refrigeration system. Run times were slightly lower than R12 for both refrigerants indicating a higher capacity. While the R134a and R22/R142b results were less promising refrigeration system, such as a different capillary tube or compressor, may improve their performance. 12 refs., 2 figs., 3 tabs.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6266553
- Report Number(s):
- CONF-890609-4; ON: DE89013543
- Resource Relation:
- Conference: ASHRAE annual meeting, Vancouver, Canada, 24 Jun 1989; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
REFRIGERANTS
PERFORMANCE TESTING
COST
ECONOMICS
ENERGY CONSUMPTION
FREEZERS
OZONE LAYER
REFRIGERATORS
RESIDENTIAL SECTOR
THERMODYNAMICS
FLUIDS
LAYERS
TESTING
WORKING FLUIDS
320106* - Energy Conservation
Consumption
& Utilization- Building Equipment- (1987-)