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Plume Diagnostics for Combustion Stability

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2007 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
603 East Robinson Street Suite 7 Carson City, NV -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2007
Title: Plume Diagnostics for Combustion Stability
Agency: NASA
Contract: NNS07AB24C
Award Amount: $599,998.00


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.

Principal Investigator:

Curtis W. Johnson
Principal Investigator

Business Contact:

Margo S. Hornung
Business Official
Small Business Information at Submission:

Sierra Engineering, Inc.
603 E. Robinson Suite 7 Carson City, NV 89701

EIN/Tax ID: 880391383
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
Purdue University, Sponsored Program Services
302 Wood St.
West Lafayette, IN 47907-2108
Contact Phone: (765) 494-1059
RI Type: Nonprofit college or university