Zero Boil Off System for Cryogen Storage

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$69,623.00
Award Year:
2005
Program:
SBIR
Phase:
Phase I
Contract:
NNM05AA47C
Award Id:
76797
Agency Tracking Number:
040228
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
1367 Camino Robles Way, San Jose, CA, 95120
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
938515913
Principal Investigator:
James Maddocks
Principal Investigator
(608) 265-4246
Maddocks@cae.wisc.edu
Business Contact:
Ali Kashani
Program Director
(408) 507-0906
akashani@atlasscientific.com
Research Institute:
n/a
Abstract
This work proposes to develop a zero boil off (ZBO) dewar using a two-stage pulse-tube cooler together with two innovative, continuous-flow cooling loops and an actively cooled shield. While a number of cryogenic refrigeration systems may be considered for such applications, none offers the same potential for low vibration, high reliability, and high efficiency as the pulse tube. The continuous-flow cooling loops are made possible by the presence of rectifying interfaces that convert the oscillating flow of the pulse-tube cryocooler into a steady flow of cold refrigerant gas that can readily be distributed throughout the volume of the dewar or over the surface of a shield, without need for a separate circulating pump.

* information listed above is at the time of submission.

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