RAMBURNER FUEL INJECTOR FOR ENDOTHERMIC FUELS

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 20212
Amount: $49,012.00
Phase: Phase I
Program: SBIR
Awards Year: 1993
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Cfd Research Corp.
3325 Triana Blvd, Huntsville, AL, 35805
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Mr S. Alan Spring
 (205) 536-6576
Business Contact
Phone: () -
Research Institution
N/A
Abstract
For sustained high speed flight (Mach 3-6), recent studies have shown that endothermic fuels are required to cool aircraft systems. Such a cooling system would deliver fuel to the ramburner in varying amounts of liquid and gaseous phases. This project proposes to experimentally investigate and develop an innovative dual-phase fuel injector prototype suitable for crossflow injection in ramburners. The fuel injector will be selected based on the following criteria: 1. Liquid spray atomization; 2. fuel penetration/distribution for liquid, gaseous, and combined liquid/gaseous fuel injection; 3. susceptibility to plugging/clogging; 4. design complexity. In Phase I, design concepts will be screened at ambient conditions using isothermal bench-scale tests. The liquid-phase fuel will be simulated using water and the gas-phase fuel will be simulated using CO2. The best designs will be isothermally tested in an existing Integral Fuel Injector/Flameholder (IFF) to show their overall feasibility. In Phase II, the best designs from Phase I will be tested in a combustion rig, under ramburner conditions, using endothermic fuels. The Phase II tests will document the performance of the new injectors under realistic conditions. If successfully demonstrated, the prototype will be tested and evaluated in a turboramjet engine demonstrator in Phase III.

* information listed above is at the time of submission.

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