Alternate Scramjet Fuel Modeling and Evaluation

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$729,981.00
Award Year:
2006
Program:
SBIR
Phase:
Phase II
Contract:
W31P4Q-06-C-0328
Agency Tracking Number:
A043-173-0681
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
COMBUSTION RESEARCH & FLOW TECHNOLOGY,
6210 Keller's Church Road,, Pipersville, PA, 18947
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
929950012
Principal Investigator:
Sanford Dash
President & Chief Scienis
(215) 766-1520
dash@craft-tech.com
Business Contact:
Sanford Dash
President & Chief Scienti
(215) 766-1520
dash@craft-tech.com
Research Institution:
n/a
Abstract
The innovation is demonstrating how the addition of aluminum particles to hydrogen fuel, for a hypersonic scramjet, can enhance overall performance while reducing volumetric fuel storage requirements. In Phase I, preliminary "one-way" Al burn rate models were formulated, relevant at kinetic-controlled (small nano) and diffusion-controlled (10μm and above) limits. In Phase II, extended models will be developed that include Al equilibrium and dissociation chemistry and condensation modeling, and, that permit transitioning between the two limits as a function of particle size and surrounding conditions. Validation and unit problem fuel injection studies will be performed to "fine-tune" the extended models and assess their performance in a scramjet environment. Upgrades to the CFD codes will be performed to ensure that particle burn, turbulent dispersion, and wall interaction effects are accurately modeled. Genetic optimization techniques will be used to ascertain optimal fuel injection patterns with Al particulates, which can differ from the patterns used for gaseous fuel injection. Full propulsive flowpath simulations will be performed with Al particles added for Mach 10 axisymmetric and inward turning scramjets of current interest to the Army. Alternate hybrid fuel concepts will also be investigated such as Al/Mg and new composite particle concepts.

* information listed above is at the time of submission.

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