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SOLID STATE OXYGEN COMPRESSOR FOR JOULE-THOMMPSON CRYOCOOLERS

Award Information

Agency:
Department of Defense
Branch:
Missile Defense Agency
Award ID:
5630
Program Year/Program:
1988 / SBIR
Agency Tracking Number:
5630
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
CERAMPHYSICS, INC.
921 Eastwind Dr. Suite 110 Westerville, OH 43081
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1988
Title: SOLID STATE OXYGEN COMPRESSOR FOR JOULE-THOMMPSON CRYOCOOLERS
Agency / Branch: DOD / MDA
Contract: N/A
Award Amount: $320,000.00
 

Abstract:

THE SIGNAL-TO-NOISE RATIO OF INFRARED DETECTORS INCREASES DRAMATICALLYAS THE TEMPERATURE OF THE DETECTOR IS REDUCED TO CRYOGENIC TEMPERATURES AND THERE HAS BEEN A SUBSTANTIAL IMPROVEMENT IN CRYOCOOLERS TO MEET THIS NEED. HOWEVER, VALVES OF ONE TYPE OF CRYOCOOLER, THE JOULE-THOMPSON EXPANSION CRYOCOOLER, ARE PRONE TO PLUGGING BY THE FREEZING OF IMPURITIES IN THE HIGH-PRESSURE STREAM. TO ADDRESS THIS PROBLEM, A RADICAL APPROACH FOR PROVIDING A HIGH-PRESSURE GAS STREAM OF 100% PURE OXYGEN TO A JOULE-THOMPSON EXPANSION DEVICE IS BEING INVESTIGATED. THE COMPRESSOR, A MONOLITHIC SOLID-STATE DEVICE CONTAINING NO MOVING PARTS, IS BASED ON THE SELECTIVE TRANSPORT OF OXYGEN IONS THROUGH A CERAMIC OXYGEN IONIC CONDUCTOR UNDER AN APPLIED VOLTAGE. ELEMENTARY CONSIDERATIONS SHOW THAT THE CERAMIC STRUCTURE MUST HAVE A VERY LOW RESISTANCE, THEREBY ELIMINATING THE PARTIALLY STABLIZED ZIRCONIAS. THE FEASIBILITY OF AN ALTERNATIVE, PROPRIETARY CERAMIC IS BEING ASSESSED THAT OFFERS TWO OUTSTANDING ADVANTAGES: OXYGEN IONIC CONDUCTIVITIES 30-50 LARGER THANTHE BEST ZIRCONIAS AND FAVORABLE SINTERING TEMPERATURES FOR FABRICATING VERY LOW RESISTANCE CELLULAR-HONEYCOMB STRUCTURES. BASEDON MEASURED OXYGEN-GENERATION RATES, MODEL CALCULATIONS ARE BEING CARRIED OUT FOR VARIOUS HONEYCOMB-TYPE GEOMETRIES TO STUDY POWER CONSUMPTION, PRESSURE, MASS-FLOW RATE, SIZE, AND EFFICIENCY. IDEAL JOULE-THOMPSON EXPANSION CYCLES ARE BEING STUDIED FOR REFRIGERATION CAPACITY AT TEMPERATURES 50-90K.

Principal Investigator:

W N Lawless
6148822231

Business Contact:

Small Business Information at Submission:

Ceram-physics Inc.
921 Eastwind Dr - Ste 110 Westerville, OH 43081

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