Advanced Multi-stage Cryogenic Cooling Technology

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$100,000.00
Award Year:
2002
Program:
SBIR
Phase:
Phase I
Contract:
F29601-02-C-0160
Award Id:
57472
Agency Tracking Number:
021NM-0161
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
5445 Conestoga Court, #2A, Boulder, CO, 80301
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
933677452
Principal Investigator:
Robert Mohling
President/General Manager
(303) 443-2262
bmohling@techapps.com
Business Contact:
Fred Fusilier
Business Manager
(303) 443-2262
ffusilier@techapps.com
Research Institution:
n/a
Abstract
"Many advanced space-based reconnaissance systems critical to national security employ infrared detectors, optics, and thermal baffles that require multi-stage cooling. If cryocoolers such as Stirlings with single point cooling are used, then multiplecoolers will be required that impose mass, power, volume, and reliability penalties; redundancy further increases these penalties. These penalties can be mitigated through the use of a single cryocooler with multiple cooling stages, thereby also reducingthe number of compressors and electronic controllers. The objective of the Phase I study is to develop and demonstrate the feasibility of a Multi-Stage Brayton Cryocooler (MSBC) with simultaneous cooling capacities of 6 W at 85 K and 2 W at 35 K. Thecryocooler system will be highly leveraged off components currently under development: a micro-electro-mechanical system (MEMS) based expander, an oil-free scroll compressor, and a high effectiveness counterflow heat exchanger. The MSBC's operationalcapabilities include significant integration advantages: the cooling fluid can be circulated over long distances providing isolation from cooler-induced interference, variable load capability, and a distributed cold-head that can accommodate large arefocal pane assemblies (FPA). These features and capabilities will significantly reduce satellite power and heat rejection requirements, decrease overall weight, and greatly simplify cooling system

* information listed above is at the time of submission.

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