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

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: 1755
Amount: $495,629.00
Phase: Phase II
Program: SBIR
Awards Year: 1986
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
P.o. Box 2451, Huntsville, AL, 35804
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 John B. Hendricks
 Investigator
 () -
Business Contact
Phone: () -
Research Institution
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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