Transpiration-Cooled Hydrocarbon-Fueled Scramjet Engine

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-05-M-2592
Agency Tracking Number: F051-195-2767
Amount: $99,996.00
Phase: Phase I
Program: SBIR
Awards Year: 2005
Solicitation Year: 2005
Solicitation Topic Code: AF05-195
Solicitation Number: 2005.1
Small Business Information
ULTRAMET
12173 Montague Street, Pacoima, CA, 91331
DUNS: 052405867
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Brian Williams
 Director of Research Engineering
 (818) 899-0236
 brian.williams@ultramet.com
Business Contact
 Craig Ward
Title: Engineering Administrative Manager
Phone: (818) 899-0236
Email: craig.ward@ultramet.com
Research Institution
N/A
Abstract
The Air Force is seeking advanced cooling concepts for scramjet engines for use in hypersonic cruise missiles, Mach 8-10 strike/reconnaissance aircraft, and affordable, on-demand access to space. In current work for the Air Force, Ultramet and Boeing/Rocketdyne are demonstrating the performance and manufacturing feasibility of a transpiration-cooled oxygen/hydrogen rocket engine for boost applications, based on the use of Ultramet's open-cell foam materials. The design is much less complex and offers lower weight than conventional regeneratively cooled engines. The high propellant density and high thrust-to-weight ratio associated with hydrocarbon propellants make them very attractive; however hydrocarbon propellants can cause coolant channel coking. Although pressure, flow rate, and coolant wall permeability requirements are quite different for hydrocarbon-fueled engines compared to oxygen/hydrogen engines, the potential exists to develop an innovative material and design approach for practical use of high-efficiency hydrocarbon propellants without coking issues. In this project, Ultramet will team with Pratt and Whitney to demonstrate the feasibility of a transpiration-cooled, hydrocarbon-fueled scramjet engine based on the use of advanced structural foam materials. This project will take advantage of the substantial scramjet development work performed at Pratt & Whitney and previous rocket engine materials development performed at Ultramet.

* information listed above is at the time of submission.

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