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Development of a High Capacity 35 K Multistage Turbo-Brayton Cryocooler

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: FA9453-04-C-0016
Agency Tracking Number: 022-0364
Amount: $745,388.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: MDA02-030
Solicitation Number: 2002.2
Solicitation Year: 2002
Award Year: 2004
Award Start Date (Proposal Award Date): 2004-06-21
Award End Date (Contract End Date): 2006-09-24
Small Business Information
P.O. Box 71
Hanover, NH 03755
United States
DUNS: 072021041
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Mark Zagarola
 (603) 643-3800
Business Contact
 William Baschnagel
Title: Operations Manager
Phone: (603) 643-3800
Research Institution

We propose to develop an innovative high-capacity multistage cryocooler for dual cooling loads at temperatures of 85 K and 35 K. The cooler is based on proven turbo-Brayton technology that has been flight demonstrated and qualified for use on the Hubble Space Telescope. This technology will be adapted to the unique requirements of DOD infrared sensor applications at lower temperatures and at significantly increased cooling capacities. The proposed system will be capable of simultaneously providing 2 W of refrigeration at 35 K and 20 W at 85 K within a single integrated assembly. The unique characteristics of the turbo-Brayton cycle permit distributed cooling at multiple sites with a single, multistage configuration with very high thermodynamic efficiency, resulting in low input power and reduced mass. In Phase I, we developed a preliminary design of the cryocooler and its components, developed load curves and assessed the benefits of advanced developments. During Phase II, we propose to develop and demonstrate an advanced recuperator that will provide milestone reductions in cryocooler mass and power consumption. During Phase III, we will demonstrate a multistage 35 K/85 K turbo-Brayton cryocooler.

* Information listed above is at the time of submission. *

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