NASA SBIR 2007 Solicitation


PROPOSAL NUMBER: 07-1 A2.02-9840
SUBTOPIC TITLE: Combustion for Aerospace Vehicles
PROPOSAL TITLE: Mechanistic Model for Atomization of Superheated Liquid Jet Fuel

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
Energy Plus Ltd
23342 South Pointe Drive, Suite E
Laguna Hills, CA 92653 - 1422
(949) 583-1197

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Vincent McDonell
23342 South Pointe Drive, Suite E
Laguna Hills, CA 92653 - 1422
(949) 583-1197

Expected Technology Readiness Level (TRL) upon completion of contract: 1 to 2

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
As air-breathing combustion applications advance, increased use of fuel for cooling, combined with cycle advancements, leads to a situation where the fuel can become superheated. While this can lead to potential benefit in terms of the eventual fuel injection process, with enhanced atomization and evaporation, it creates a significant challenge relative to any computational design tools that might be used in these systems. Dealing with the superheat behavior in the injection of a liquid fuel requires substantially more physical phenomena to be accounted for compared to a subcooled system. As a result, detailed data and models for this behavior as encountered in practical fuels are needed in order to validate and evolve the models needed. In the work proposed, emphasis will be given to the injection of a plain liquid jet under superheated conditions. In Phase I the behavior of the liquid internal to the injector will be addressed, with both models and experiments carried out. The models evolved will be incorporated into an existing simulation environment developed by ERC for atomization of liquid jets. In addition, data will be available for CFD validation.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
For Aerospace applications, development of fuel injection schemes that involve fuel superheat will be enhanced by model construction and validation resulting from the proposed project. Both standalone modeling tools and models for incorporation into a CFD environment will result from the project. NASA design tools will be enhanced in general and any simulation platforms needing to incorporate superheated fuel behavior will benefit in particular.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The project outcomes will be applicable to any application in which superheated fuels are involved. The main products in this regard are data and models which can be incorporated into larger design tools for these liquid injection systems. The standalone design tool can be used for assisting design of liquid injection systems using superheated fuels.

NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.

Aircraft Engines
Feed System Components
Portable Data Acquisition or Analysis Tools
Software Development Environments
Software Tools for Distributed Analysis and Simulation
Testing Facilities

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