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SPACE SUIT THERMAL CONTROL USING NON-TOXIC MICROENCAPSULATEDPCM TWO-PHASE FLUID

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
6671
Program Year/Program:
1988 / SBIR
Agency Tracking Number:
6671
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Triangle Research and Development Corporation
PO Box 12696 Research Triangle Park, NC 27709-0269
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1988
Title: SPACE SUIT THERMAL CONTROL USING NON-TOXIC MICROENCAPSULATEDPCM TWO-PHASE FLUID
Agency: NASA
Contract: N/A
Award Amount: $49,993.00
 

Abstract:

A TWO-COMPONENT HEAT TRANSFER FLUID WHICH CONSISTS OF CAPSULES OF MICROENCAPSULATED PHASE-CHANGE MATERIAL (PCM) SUSPENDED IN WATER IS TO BE DEVELOPED FOR APPLICATION TO CLOSED SYSTEM LIQUID-COUPLED HEAT EXCHANGE WITHIN A SPACE SUIT (EMU). THE TWO-COMPONENT FLUID (SLURRY) WILL CONSIST OF APPROXIMATELY 30% BY WEIGHT OF PCM CAPSULES OF APPROXIMATELY 25 MICRONS IN DIAMETER. THE PCM WILL PROBABLYBE EITHER TETRADECANE (5.9 DEGREE(C) MELTING TEMPERATURE), OR HEXADECANE (18.2 DEGREE(") MELTING TEMPERATURE), MICROENCAPSULATED IN A POLYMER SHELL OF APPROXIMATELY 1 MICRON WALL THICKNESS. SUCH A TWO-COMPONENT FLUID HAS BEEN SHOWN TO HAVE TWICE THE HEAT TRANSFER COEFFICIENT OF WATER AND FIVE TO SIX TIMES THE THERMAL CAPACITANCE. A PCM STORAGE MODULE IS ALSO TO BE DESIGNED FOR INTEGRATING WITH THE PCM FLUID, TO FORM AN INTEGRAL PCM FLUID/STORAGE SYSTEM WHICH POTENTIALLY CAN BE USED AS A NON-TOXIC AND NONEXPENDABLE TEMPERATURE CONTROL SYSTEM FOR AN EMU (SPACE SUIT). A COMPUTER MODEL AND LABORATORY SIMULATION OFSUCH A SYSTEM IS TO BE DEVELOPED. SUCH A SYSTEM IS POTENTIALLY CAPABLE OF IMPROVING EFFECTIVENESS AND CAPACITY OF AN EMU WHILE MINIMIZING SPACE RADIATOR SIZE AND PUMPING REQUIREMENTS.

Principal Investigator:

David p colvin ph d

Business Contact:

Small Business Information at Submission:

Triangle Research & Developmnt
Po 12696 Resrch Triangle Pk, NC 27709

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No