Rotary magnetic heat pump

Conference · Wed Aug 01 04:00:00 EDT 1984 · Proc., Intersoc. Energy Convers. Eng. Conf.; (United States)

OSTI ID:5943844

Kirol, L D; Mills, J I

Magnetic heat pumps use the magnetocaloric effect to produce entropy changes necessary for heat pumping. A rotary magnetic heat pump has been analyzed and computer models have been developed. The contribution of viscous heat to the regenerator heat balance has been found to significantly restrict performance. The contribution of viscous heating is at least as important as the temperature differences required for regenerator heat transfer. Multiple magnet coils on a single rotor reduce the viscous work per field change cycle and result in greatly improved performance. Operation at 80% of Carnot efficiency with a heat pumping rate of 10 kW per kilogram of magnetic material is predicted.

• Research Organization: Idaho National Engineering Laboratory, Idaho Falls, Idaho
• OSTI ID: 5943844
• Report Number(s): CONF-840804-
• Conference Information: Journal Name: Proc., Intersoc. Energy Convers. Eng. Conf.; (United States) Journal Volume: 3
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320100* -- Energy Conservation
Consumption
& Utilization-- Buildings
CARNOT CYCLE
COMPUTERIZED SIMULATION
EFFICIENCY
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ENERGY TRANSFER
ENTROPY
EQUIPMENT
HEAT PUMPS
HEAT TRANSFER
MAGNET COILS
MAGNETIC FIELDS
MAGNETO-THERMAL EFFECTS
MOTION
PERFORMANCE
PHYSICAL PROPERTIES
REGENERATION
ROTATION
ROTORS
SIMULATION
TEMPERATURE EFFECTS
THERMODYNAMIC CYCLES
THERMODYNAMIC PROPERTIES