Novel Tools for Augmentor Ignition Modeling and Analysis

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$99,883.00
Award Year:
2010
Program:
SBIR
Phase:
Phase I
Contract:
FA8650-10-M-2075
Agency Tracking Number:
F093-165-1441
Solicitation Year:
2009
Solicitation Topic Code:
AF093-165
Solicitation Number:
2009.3
Small Business Information
Creare Inc.
P.O. Box 71, Hanover, NH, 03755
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
072021041
Principal Investigator:
Darin Knaus, Ph.D.
Principal Investigator
(603) 643-3800
dak@creare.com
Business Contact:
James Barry
President
(603) 643-3800
contractsmgr@creare.com
Research Institution:
n/a
Abstract
Reliable ignition is critical to the operational performance of augmented military jet engines. Augmentors must reliably ignite when thrust is needed or the system (and pilot) safety could be compromised. Augmentor ignition is particularly challenging because the igniter must function over a range of operating conditions. In particular, high-altitude, low-pressure conditions are known to confound ignition performance. Augmentor ignition is truly a multi-scale/multi-physics problem, involving electro-magnetism, chemical kinetics, heat transfer, fluid flow, and flame propagation. In this research program, we propose to develop a series of tools that can be used to study the critical processes of the overall ignition process. These include: spark discharge, kernel ignition, and propagation. The ultimate objective of this program will be to exploit these tools to design improved ignition systems for augmentors. In Phase I, we will experimentally characterize the delivered energy of an existing augmentor ignition system. We will then develop a multi-physics simulation tool to reproduce the delivered energy behavior of this igniter, and use the delivered energy data to characterize the ignition performance of the igniter at reduced pressures. In Phase II, we will extend tool development and design and build and test an improved ignition system for augmentors. BENEFIT: Technology derived from this research program will lead to the development of improved ignition systems for augmentors. This technology will enhance the performance and operational reliability of augmented jet engines. Ignition systems are particularly well suited for retro-fit, and could be used for future and legacy systems. In the commercial sector, technology developed under this research program could be applied to any combustion system involving spark ignition, most notably internal combustion engines.

* information listed above is at the time of submission.

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