Propellant Conditioning Using Improved Pulse Tube Cryocooler

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNS05AA35C
Agency Tracking Number: 041589
Amount: $69,452.00
Phase: Phase I
Program: SBIR
Awards Year: 2005
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Sierra Lobo, Inc.
426 Croghan Street, Fremont, OH, 43420
DUNS: 928298983
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Alexander Yeckley
 Principal Investigator
 (419) 499-9653
 ayeckley@sierralobo.com
Business Contact
 Alexander Yeckley
Title: Mechanical Engineer
Phone: (419) 499-9653
Email: Ayeckley@sierralobo.com
Research Institution
N/A
Abstract
Application of the proposed technology (an affordable, large-scale, high-efficiency, low-temperature pulse tube cryocooler system), serves two NASA needs: an improved cryogenic propellant conditioning method and an economical technique to maintain the lowest possible liquid propellant feed temperature. These needs exist at a variety of NASA facilities, yet little progress has been made beyond laboratory development. One barrier to acceptance is the cost of manufacturing large scale pulse tubes. Sierra Lobo, Inc. has found that through previous research involving conventional manufacturing techniques, two particular components common to all pulse tube cryocoolers contribute to approximately 50% of the cost. In view of the February 24, 2004, Executive Order encouraging innovation in manufacturing related research and development via the SBIR program, the primary objective of Phase I of this research is to study and develop improvements to the existing pulse tube manufacturing process. If successful, the resulting technology advancement would benefit a variety of current and future NASA programs managed by the Exploration Systems Office and the Science Mission Office, especially those involving long-term cryogenic storage systems. An even greater benefit is expected for the commercial application of pulse tube cryocoolers in facilitating the advancement of distributed high-temperature superconducting power systems.

* information listed above is at the time of submission.

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