A THERMALLY EFFECTIVE REGENERATOR FOR LOW TEMPERATURE CRYOCOOLERS

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$491,273.00
Award Year:
1990
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
10576
Agency Tracking Number:
10576
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:
W Dodd Stacy
() -
Business Contact:
() -
Research Institute:
n/a
Abstract
SMALL STIRLING CRYOCOOLERS ARE LIMITED IN THE ATTAINMENT OF VERY LOW TEMPERATURES BY THE ADVERSE TREND IN THE RATIO OF VOLUMETRIC HEAT CAPACITY BETWEEN GASEOUS HELIUM AND REGENERATOR MATRIX MATERIALS BELOW ABOUT 40 K. THE PROPOSEDCONCEPT FOR A THERMALLY EFFECTIVE REGENERATOR OVERCOMES THISLIMITATION BY PROVIDING A DYNAMIC HELIUM MATRIX. THE OBJECTIVE OF THE PHASE I PROJECT IS TO EXPERIMENTALLY DEMONSTRATE THE RELATIVE THERMAL STORAGE EFFECTIVENESS OF THIS REGENERATOR CONFIGURATION AND A MORE CONVENTIONAL REGENERATOR BETWEEN 4.2 K AND 77 K. THE EFFORT INCLUDES DESIGN, FABRICATION AND TESTING OF AN INNOVATIVE REGENERATOROVER A RANGE OF MASS FLOWS, PRESSURES, AND OPERATING FREQUENCIES. RESULTS WILL BE DOCUMENTED IN A FINAL REPORT.

* information listed above is at the time of submission.

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