Plume Diagnostics for Combustion Stability

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNS07AB24C
Agency Tracking Number: 050233
Amount: $599,998.00
Phase: Phase II
Program: STTR
Awards Year: 2007
Solicitation Year: 2005
Solicitation Topic Code: T9.01
Solicitation Number: N/A
Small Business Information
Sierra Engineering, Inc.
603 E. Robinson Suite 7, Carson City, NV, 89701-4046
DUNS: 006620553
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Curtis Johnson
 Principal Investigator
 (435) 734-1166
 cwj@sierraengineering.com
Business Contact
 Margo Hornung
Title: Business Official
Phone: (775) 888-9122
Email: mah@sierraengineering.com
Research Institution
 Purdue University, Sponsored Program Services
 Not Available
 302 Wood St.
West Lafayette, IN, 47907
 (765) 494-1059
 Domestic nonprofit research organization
Abstract
Sierra Engineering Inc. and Purdue University propose to develop a non-intrusive plume instrument capable of detecting and diagnosing combustion instability. This Stability Diagnostic System (SDS) will be designed, assembled, and tested during this effort. The SDS will include a high-speed video camera and multiple photodiode detectors for observing the plume. It will also include a software package, which will aid in analyzing the plume data and in determining the acoustic modes of the instability. To ensure that the system works properly, Sierra and Purdue will leverage an oxygen/kerosene combustor, developed under AFRL funding, to operate with unstable combustion. Technology previously developed at Purdue will be used to modify the engine's injector so that the combustion instability occurs. The dirty (soot laden) plume produced by this combustor better simulates the conditions present in full-scale hydrocarbon fueled engines. Finally, the methodology for predicting combustion response from plume observations, developed under the Phase I effort, will be matured. The SDS system and accompanying software will be delivered to NASA for future application on NASA test facilities. Successful completion of this project will provide a non-intrusive tool for detecting and diagnosing combustion instability that is superior to current, intrusive methods.

* information listed above is at the time of submission.

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