A POROUS METAL HEAT EXCHANGER TO COOL A MICROWAVE CAVITY

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$499,794.00
Award Year:
1993
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
17513
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Thermacore Inc.
780 Eden Rd, Lancaster, PA, 17601
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Mr. John H. Rosenfeld
() -
Business Contact:
Mr. Richard Longsderff
(717) 569-6551
Research Institution:
n/a
Abstract
THE POWER OUTPUT OF GYROTRONS USED IN THE FUSION PROGRAM IS LIMITED BY THE COOLING OF THE MICROWAVE CAVITY. EXISTING DESIGNS CAN EXTRACT A HEAT FLUX OF 1 TO 3 KW/CM(2). THE RUSSIANS HAVE REPORTED A FLUX OF 4 TO 5 KW/CM(2) USING POROUS METAL HEAT TRANSFER. POROUS METAL HEAT TRANSFER USES A THIN POROUS LAYER OF METAL POWDER UNDER A FACESHEET, WHICH IS BONDED TO A COOLANT SUPPLY/REMOVAL PLATE. THE LARGE SURFACE AREA OF THE POROUS LAYER COMBINES WITH THE LARGE CONVECTIVE HEAT TRANSFER COEFFICIENT OF THE COOLANT FLOW THROUGH THE POROUS LAYER TO MAKE POSSIBLE THE FAVORABLE HEAT TRANSFER. POROUS METAL HEAT TRANSFER HAS BEEN DEMONSTRATED FOR MIRROR COOLING FOR THE STRATEGIC DEFENSE INITIATIVE. THIS PROJECT WOULD UTILIZE POROUS METAL HEAT TRANSFER TO ACHIEVE COOLING RATES OF 10 KW/CM(2) AND ELIMINATE MICROWAVE CAVITY COOLING AS A LIMITING FACTOR IN GYROTRON POWER OUTPUT. PHASE I IS EXPECTED TO DEMONSTRATE THE HEAT FLUX OF 5 KW/CM(2) REPORTED BY THE RUSSIANS.

* information listed above is at the time of submission.

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