A Wide Temperature Range, Reliable, Compact Cryogenic Thermal Switch

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$149,867.00
Award Year:
2011
Program:
SBIR
Phase:
Phase I
Contract:
DE-FG02-11ER90078
Award Id:
n/a
Agency Tracking Number:
97573
Solicitation Year:
2011
Solicitation Topic Code:
55 e
Solicitation Number:
DE-FOA-0000413
Small Business Information
16 Great Hollow Road, Hanover, NH, -
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
072021041
Principal Investigator:
WeiboChen
Dr.
(603) 640-2425
wbc@creare.com
Business Contact:
JamesBarry
Dr.
(603) 640-2487
contractsmgr@creare.com
Research Institute:
n/a
Abstract
Develop a reliable, compact cryogenic thermal switch to enable efficient cryogenic xenon collection in nuclear explosion monitoring systems. The thermal switch can be turned off during xenon removal, when the xenon cryotrap is heated up. This prevents the cryocooler cold head from overheating, and allows the system to return to its collection state quickly. Develop a thermosyphon that has an integrated actuator that has no moving parts to serve as the thermal switch. The actuator controls the thermal conductance of the thermosyphon. The thermosyphon uses a unique fluid mixture and an innovative configuration to enable it to operate over a wide temperature range (-50oC to -200oC). Commercial Application and Other Benefits: The thermal switch is very reliable because it has no moving parts. It also can operate over a very wide temperature range that none of the conventional cryogenic heat pipes can achieve. The technology can be widely used in many scientific and commercial cryogenic systems to significantly simplify the thermal integration between a cryocooler and a cooling target. Commercial applications include cryocooling systems for communication satellites; superconducting instruments, digital filters, and magnets; MRIs; and SQUIDs. Its national security applications include space-based surveillance, missile detection, and missile tracking systems. Scientific applications include cooling for space-based infrared observatories.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government