THIS PROJECT CONCERNS A NOVEL DEVICE THAT CAN ATTAIN HIGH HEAT TRANSFER RATES WHILE OPERATING AS A COLD PLATE OR AS A HOT PLATE HEAT EXCHANGER IN A TWO PHASE THERMAL CONTROL SYSTEM FOR A SPACE STATION OR SPACE PLATFORM.

Award Information
Agency:
National Aeronautics and Space Administration
Branch:
N/A
Amount:
$50,000.00
Award Year:
1983
Program:
SBIR
Phase:
Phase I
Contract:
N/A
Agency Tracking Number:
643
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Mjr Inc.
10400 Eaton Place, Suite 300, Fairfax, VA, 22030
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
N/A
Principal Investigator
 HAN HWANGBO
 PRINCIPAL INVESTIGATOR
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THIS PROJECT CONCERNS A NOVEL DEVICE THAT CAN ATTAIN HIGH HEAT TRANSFER RATES WHILE OPERATING AS A COLD PLATE OR AS A HOT PLATE HEAT EXCHANGER IN A TWO PHASE THERMAL CONTROL SYSTEM FOR A SPACE STATION OR SPACE PLATFORM. THE DEVICE UTILIZES CAPILLARY FORCES TO CONTROL THE POSITION AND FLOW OF THE LIQUID PHASE OF THE WORKING FLUID. THIS ALLOWS A HIGH EXIT QUALITY (APPROXIMATELY 100% VAPOR FLOW) TO BE MAINTAINED WHICH RESULTS IN REPRODUCIBLE AND STABLE FLOW CHARACTERISTICS IN THE TRANSPORT SECTIONS OF THE THERMAL BUS. THE OBJECTIVES OF THE PHASE I RESEARCH PROGRAM ARE TO DEVELOP AN ANALYTICAL MODEL OF THE COLD PLATE/HOT PLATE; TO SPECIFY SOME OF THE KEY DESIGN PARAMETERS OF THE DEVICE; AND TO STUDY CONTROL TECHNIQUES WHEN THE DEVICE IS INCORPORATED INTO A PUMPED TWO PHASE THERMAL BUS. ALSO THE STUDY ANALYZES THE PERFORMANCE OF A CAPILLARY DRAINED CONDENSER WHEN USED AS THE INTERFACE BETWEEN THE TWO PHASE LOOP AND A SPACE RADIATOR.

* information listed above is at the time of submission.

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