Development of Compact, Lightweight Power Transmission Devices for Directed Energy Applications

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9550-09-C-0125
Agency Tracking Number: F08B-T12-0052
Amount: $99,960.00
Phase: Phase I
Program: STTR
Awards Year: 2009
Solicitation Year: 2008
Solicitation Topic Code: AF08-BT12
Solicitation Number: 2008.B
Small Business Information
UES, Inc.
4401 Dayton-Xenia Road, Dayton, OH, 45432
DUNS: 074689217
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 George Levin
 Research Scientist
 (937) 255-5630
Business Contact
 Bryce Skinn
Title: Business Relations Manage
Phone: (937) 426-6900
Research Institution
 The Ohio State University
 Angela M Maupin
 22 Bolz Hall
2036 Neil Ave Mall
Columbus, OH, 43210
 (614) 247-2796
 Nonprofit college or university
The proposal addresses the issues related to the design of a MW class DC or AC current transmission line suitable for use onboard of an aircraft. The main questions are the amount of losses in such a line and the efficiency, weight and overall size of the whole system. The key issues that are addressed in the proposal are the amount of AC losses in the superconducting line and the heat losses in the current leads. We consider novel approaches to the loss reduction. The superconducting line is formed by YBCO coated conductors with operating temperature 60-65 K. In order to reduce AC losses and maximize critical current, the conductors are assembled as current dipoles placed in circular pattern and twisted at the ends. We also propose to use current leads with variable cross section in order to optimize the amount of heat flux and minimize the total weight. We will investigate a possibility to use non-vacuum thermal insulation and modular construction of the transmission line. The latter is necessary to insure that the equipment can be serviced and maintained by regular Air Force personnel. BENEFIT: By designing and testing this STTR project may lead to the development of new compact and lightweight power transmission devices with maximizing power/weight ratios and minimizing system heat losses including refrigeration of applicable devices based on recently developed higher power/weight wire conductors.)

* information listed above is at the time of submission.

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