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LHP Architecture and Advanced Wicks for Freeze Tolerance

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9453-10-M-0142
Agency Tracking Number: F093-079-0601
Amount: $99,935.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: AF093-079
Solicitation Number: 2009.3
Solicitation Year: 2009
Award Year: 2010
Award Start Date (Proposal Award Date): 2010-03-05
Award End Date (Contract End Date): 2011-03-05
Small Business Information
133 Defense Highway, Suite 212
Annapolis, MD 21401
United States
DUNS: 153908801
HUBZone Owned: No
Woman Owned: Yes
Socially and Economically Disadvantaged: No
Principal Investigator
 Steven Seghi
 Group Manager
 (410) 987-3435
Business Contact
 Sharon Fehrenbacher
Title: CEO
Phone: (410) 224-3710
Research Institution

This proposal describes a freeze-tolerant water loop heat pipe (LHP) as the solution to the spacecraft high temperature electronics thermal removal and transportation problem when operating between 100°C-200°C. Water LHPs -- owing to their many favorable system attributes that include high conductance, passive operation, operating temperature applicability, compactness, heat load/transport length scalability, integration flexibility, low mass, no-moving-part reliability, low cost, benign nature, and dual-use potential -- are uniquely suited to meeting the high temperature electronics thermal management system technology objectives. Water is a desirable choice of working fluid not only because of its excellent thermal properties but it is a fluid that is accepted from a safety perspective which would allow it to be used in a wide variety of applications, including commercial electronics. Unfortunately, despite the promise of water LHPs, their freeze-tolerance remains a critical problem that must be solved to ensure long-life operation in warm/cold environments. The technology proposed herein will result in a freeze-tolerant water loop heat pipe. BENEFIT: In addition to the solicitation topic of cooling for spacecraft high temperature electronics, additional post applications for the freeze-tolerant water LHP technology include, but are not limited to, the following ground/space applications: (1) commercial PC cooling (CPU, video cards, etc); (2) industrial electronics (3) Hybrid electric vehicle (HEV) component cooling; (4) commercial aircraft electronics cooling; (5) avionics cooling in military aircraft; (6) military hybrid vehicle cooling; and (7) others.

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

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