Advanced, Long-Life Cryocooler Technology for Zero-Boil-Off Cryogen Storage

Award Information
Agency:
National Aeronautics and Space Administration
Amount:
$599,965.00
Program:
SBIR
Contract:
NNX09CA23C
Solitcitation Year:
2007
Solicitation Number:
N/A
Branch:
N/A
Award Year:
2009
Phase:
Phase II
Agency Tracking Number:
074171
Solicitation Topic Code:
X9.01
Small Business Information
Creare, Inc.
P.O. Box 71, Hanover, NH, 03755-3116
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
072021041
Principal Investigator
 Mark Zagarola
 Principal Investigator
 (603) 643-3800
 mvz@creare.com
Business Contact
 James Barry
Title: President
Phone: (603) 640-2487
Email: contractsmgr@creare.com
Research Institution
N/A
Abstract
Long-life, high-capacity cryocoolers are a critical need for future space systems utilizing stored cryogens. The cooling requirements for planetary and extraterrestrial exploration missions, Crew Exploration Vehicles, extended-life orbital transfer vehicles, and space depots will range from 10 to 50 W at temperatures between 20 and 120 K. Turbo-Brayton cryocoolers are ideal for these systems because they are lightweight, compact and very efficient at high cooling loads, in addition to their inherent attributes of high reliability; negligible vibration; long, maintenance-free lifetimes; and flexibility in integrating with spacecraft systems and payloads. To date, space-borne turbo-Brayton technology has been developed for modest cooling loads. During the proposed program, Creare will develop an advanced, high efficiency turbine optimized for a high-capacity cryocooler. The advanced turbine will enable a landmark reduction in cryocooler input power and overall cooling system mass. In Phase I, we defined the cryocooler requirements for a particular mission class, developed the conceptual design of a multistage cryocooler to meet the requirements, developed the preliminary design of the advanced turbine and successfully performed proof-of-concept tests on the turbine. During Phase II, we will fabricate the turbine optimized to provide 5-20 W of net refrigeration at 20 K and demonstrate its performance at prototypical operating conditions.

* information listed above is at the time of submission.

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