Solid-state electrocaloric cooling system and method
Patent
·
OSTI ID:6847703
A cooling system for transferring heat is described comprising: a first electrocaloric element; a pair of electrodes disposed on opposite surfaces of the electrocaloric element; a first unidirectional heat pipe for conducting heat away from the heat source to the electrocaloric element when the heat source temperature exceeds the temperature of the electrocaloric element; a second unidirectional heat pipe for transferring heat from the electrocaloric element when the temperature of the electrocaloric element exceeds a predetermined temperature; a second electrocaloric element; a second pair of electrodes disposed on opposite surfaces of the second electrocaloric element; a third unidirectional heat pipe for transferring heat from the second electrocaloric element when its temperature exceeds a predetermined temperature; and means for selectively applying voltages between electrodes of the electrode pairs for respectively generating electric fields in the first and second electrocaloric elements to heat the first and second electrocaloric elements in response to the presence of the electric fields and to cool the first and second electrocaloric elements upon removal of the electric fields.
- Assignee:
- Hughes Aircraft Co., Los Angeles, CA
- Patent Number(s):
- US 4757688
- OSTI ID:
- 6847703
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320106* -- Energy Conservation
Consumption
& Utilization-- Building Equipment-- (1987-)
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CADMIUM COMPOUNDS
CALORIMETRY
COOLING SYSTEMS
ELECTRODES
ENERGY SYSTEMS
ENERGY TRANSFER
HEAT EXCHANGERS
HEAT PIPES
HEAT TRANSFER
LEAD COMPOUNDS
MATERIALS
NIOBATES
NIOBIUM COMPOUNDS
OXYGEN COMPOUNDS
PHASE CHANGE MATERIALS
REFRACTORY METAL COMPOUNDS
STRONTIUM COMPOUNDS
STRONTIUM TITANATES
TEMPERATURE MEASUREMENT
TITANATES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
320106* -- Energy Conservation
Consumption
& Utilization-- Building Equipment-- (1987-)
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CADMIUM COMPOUNDS
CALORIMETRY
COOLING SYSTEMS
ELECTRODES
ENERGY SYSTEMS
ENERGY TRANSFER
HEAT EXCHANGERS
HEAT PIPES
HEAT TRANSFER
LEAD COMPOUNDS
MATERIALS
NIOBATES
NIOBIUM COMPOUNDS
OXYGEN COMPOUNDS
PHASE CHANGE MATERIALS
REFRACTORY METAL COMPOUNDS
STRONTIUM COMPOUNDS
STRONTIUM TITANATES
TEMPERATURE MEASUREMENT
TITANATES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS