Magnetic heat pumps
The effect of the development of high-temperature superconductors on the use of magnetic heat pumps was evaluated for two applications: refrigeration for commercial food processing and industrial production of hot water or low-quality steam. Background discussion are included on magnetic heat pumps and their operation and on the selection of the two applications that were evaluated. The design of magnetic heat pumps and how designs will be affected by the use of high-temperature superconductors are analyzed. The heat pump designs used in the evaluations were a Brayton cycle with an active magnetic regenerator and a Brayton cycle with external recuperation. The economics of the active magnetic regenerator design are compared with conventional vapor-compression devices for the two applications. 30 refs., 18 figs., 22 tabs.
- Research Organization:
- Argonne National Lab., IL (USA). Energy Systems Div.
- Sponsoring Organization:
- DOE/CE
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6881197
- Report Number(s):
- ANL/ESD-3; ON: DE90010305
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
42 ENGINEERING
HEAT PUMPS
MAGNETIC FIELDS
SPECIFICATIONS
MAGNETIC REFRIGERATORS
AIR CONDITIONERS
BRAYTON CYCLE
CARNOT CYCLE
COMPARATIVE EVALUATIONS
DESIGN
ECONOMIC ANALYSIS
ENERGY EFFICIENCY
ENTROPY
ENVIRONMENTAL QUALITY
ETTINGHAUSEN EFFECT
FOOD INDUSTRY
GADOLINIUM ALLOYS
GADOLINIUM COMPOUNDS
HEAT TRANSFER
HIGH-TC SUPERCONDUCTORS
MAINTENANCE
PERFORMANCE TESTING
RECOMMENDATIONS
RELIABILITY
STIRLING CYCLE
TEMPERATURE EFFECTS
THERMODYNAMIC CYCLES
WATER HEATING
ALLOYS
ECONOMICS
EFFICIENCY
ENERGY TRANSFER
HEATING
INDUSTRY
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
RARE EARTH COMPOUNDS
REFRIGERATORS
SUPERCONDUCTORS
TESTING
THERMODYNAMIC PROPERTIES
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