Advanced Multi-stage Cryogenic Cooling Technology

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: F29601-02-C-0160
Agency Tracking Number: 021NM-0161
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2002
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
5445 Conestoga Court, #2A, Boulder, CO, 80301
DUNS: 933677452
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Robert Mohling
 President/General Manager
 (303) 443-2262
Business Contact
 Fred Fusilier
Title: Business Manager
Phone: (303) 443-2262
Research Institution
"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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