A HELIUM-3/HELIUM-4 DILUTION CRYOCOOLER FOR OPERATION IN ZERO GRAVITY

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$495,629.00
Award Year:
1986
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
1755
Agency Tracking Number:
1755
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
P.o. Box 2451, Huntsville, AL, 35804
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
John B. Hendricks
Investigator
() -
Business Contact:
() -
Research Institute:
n/a
Abstract
THIS PROJECT CONCERNS THE DEVELOPMENT OF A CRYOCOOLER TO OPERATE AT 0.1 K IN ZERO GRAVITY. THE CRYOCOOLER WILL USE THE PRINCIPLE OF DILUTION OF HELIUM-3 SOLUTION BY PURE SUPERFLUID HELIUM-4 FOR THE COOLING EFFECT. A CONVENTIONAL DILUTION REFRIGERATOR REQUIRES GRAVITY FOR OPERATION, SO AN INNOVATIVE TECHNIQUE IS REQUIRED FOR THE ZERO GRAVITY SYSTEM. THE SYSTEM, WHICH REQUIRES A 2 K HEAT SINK, AND CAN BE BUILT WITH A COOLING CAPACITY APPROACHING ONE MILLIWATT AT 0.1 K.

* information listed above is at the time of submission.

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