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A High-Capacity Turboalternator for Turbo-Brayton Cryocoolers

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: F29601-01-C-0034
Agency Tracking Number: 001NM-1929
Amount: $739,471.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Timeline
Solicitation Year: N/A
Award Year: 2001
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
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
 Engineer
 (603) 643-3800
 mvz@creare.com
Business Contact
 William Baschnagel
Title: Operations Manager
Phone: (603) 643-3800
Email: wrb@creare.com
Research Institution
N/A
Abstract

Future DoD cryogenic cooling applications include space missions with relatively large cooling demands. These include space-based lasers, orbital transfer vehicles requiring cooling of stored fuels, and space-based platforms using large arrays of infrareddetectors. Loads for these applications will range from several watts to tens of watts. Temperatures of interest are between 10 and 100 K. Current reverse turbo-Brayton cryocoolers are optimized for a limited range of loads and temperatures,significantly below those of future high-capacity applications. In order to meet future needs for high-capacity cooling, additional research and development must be performed on the turboalternator, a key component in the system. This proposal addressesthe development of a high-capacity turboalternator. In Phase I, key turboalternator performance parameters and loss mechanisms were quantified. During Phase II, we propose to develop and test an advanced turboalternator optimized for a particularhigh-capacity, low-temperature application. The turboalternator will be installed in an existing Engineering Design Model cryocooler and the performance of the cryocooler will be quantified over a wide range of temperatures. The cryocooler test resultswill be used to set a baseline for scaling the system to other applications and to identify design features that require modification for other loads and temperatures.

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

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