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Alternate Scramjet Fuel Modeling and Evaluation

Award Information
Agency: Department of Defense
Branch: Army
Contract: W31P4Q-06-C-0328
Agency Tracking Number: A043-173-0681
Amount: $729,981.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: A04-173
Solicitation Number: 2004.3
Timeline
Solicitation Year: 2004
Award Year: 2006
Award Start Date (Proposal Award Date): 2006-05-22
Award End Date (Contract End Date): 2008-05-30
Small Business Information
6210 Keller's Church Road,, Pipersville, PA, 18947
DUNS: 929950012
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Sanford Dash
 President & Chief Scienis
 (215) 766-1520
 dash@craft-tech.com
Business Contact
 Sanford Dash
Title: President & Chief Scienti
Phone: (215) 766-1520
Email: 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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