CRYOGENIC HEAT PIPE DIODE

Award Information
Agency:
Department of Defense
Branch
Missile Defense Agency
Amount:
$495,000.00
Award Year:
1992
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
15620
Agency Tracking Number:
15620
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Po Box 71, Hanover, NH, 03755
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Michael G Izenson
Principal Investigator
(603) 643-3800
Business Contact:
() -
Research Institute:
n/a
Abstract
SATELLITE-BORNE INFRARED SENSORS PLAY A KEY ROLE IN ANY STRATEGIC DEFENSE ARCHITECTURE. OUR CONCEPT FOR A CRYOGENIC HEAT PIPE DIODE TRANSFERS HEAT FROM A CRYOGENIC FOCAL PLANE ARRAY TO ACTIVE CRYOCOOLERS OR A CRYOGENIC RADIATOR. THE HEAT PIPE DIODE CONTAINS AN INNOVATIVE MICROMACHINED WICK WHICH ENABLES HIGH CAPACITY AND A UNIQUE INTERNAL CONFIGURATION WHICH ENABLES DIODE ACTION. DIODE ACTION ENABLES A REDUNDANT CRYOCOOLER WITHOUT LARGE HEAT LEAK PENALTIES BECAUSE THE CONDUCTIVITY IN REVERSE IS LESS THAN 0.02% OF FORWARD CONDUCTIVITY. THE DIODE'S HIGH FORWARD CONDUCTIVITY REDUCES THE MASS OF A CRYOGENIC COOLING SYSTEM BY 50 KG COMPARED TO A SOLID CONDUCTOR. IN PHASE I WE HAVE DEVELOPED A CONCEPTUAL DESIGN FOR THE HEAT PIPE DIODE AND FABRICATED SAMPLES OF THE MICROMACHINED WICK. IN PHASE II WE WILL FABRICATE AND TEST INDIVIDUAL ELEMENTS OF THE HEAT PIPE AND TEST AN INTEGRATED PROTOTYPE.

* information listed above is at the time of submission.

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