More Electric Aircraft Power System Technologies (Electric Actuator Thermal Management Concept)

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 25978
Amount: $730,037.00
Phase: Phase II
Program: SBIR
Awards Year: 1995
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
23041 Avenida De La Carlota,, Suite 400, Laguna Hills, CA, 92653
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr Daniel L. Vrable
 (619) 455-1650
Business Contact
Phone: () -
Research Institution
The More Electric Aircraft initiative will replace conventional hydraulic actuators, which are cooled by their centralized hydraulic oil circuit, by discrete electromechanical or electrohydraulic units which are not part of a centralized system. This will introduce a critical localized thermal management issue in the cooling of these advanced actuators and other components. A proposed integrated thermal management system for these components is simple, reliable, lightweight, has a high heat capacity and is totally passive. The proposed concept includes the use of a resin matrix composite heat transfer structure with high thermal conductivity graphite fibers, to provide high in-plane thermal conductivity for effective heat removal from the actuator to the vehicle skin or other heat sink. The concept also uses an innovative approach with embedded high thermal conductivity fibers to improve the short-transverse direction thermal conductivity of the composite structure. In addition, the concept integrates thermal energy storage materials within the composite structure to allow for short-term peak power operation. In the Phase I program the feasibility of this innovative concept will be analytically demonstrated and subelement articles demonstrating key design features will be fabricated and tested. Potential applications in the MEA program and other areas will be identified, and a plan for continued development will be prepared.

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

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