Design and development of a research combustor for lean blow-out studies
- Pratt and Whitney, East Hartford, CT (US)
- WRDC/POSF, Wright-Patterson AFB, OH (US)
- Univ. of Dayton, Dayton, OH (US)
In a modern aircraft gas turbine combustor, the phenomenon of lean blow-out (LBO) is of major concern. To understand the physical processes involved in LBO, a research combustor was designed and developed specifically to reproduce recirculation patterns and LBO processes that occur in a real gas turbine combustor. A total of eight leading design criteria were established for the research combustor. This paper discusses the combustor design constraints, aerothermochemical design, choice of combustor configurations, combustor sizing, mechanical design, combustor light-off, and combustor acoustic considerations that went into the final design and fabrication. Tests on this combustion reveal a complex sequence of events such as flame lift-off, intermittency, and onset of axial flame instability leading to lean blowout. The combustor operates satisfactorily and is yielding benchmark quality data for validation and refining computer models for predicting LBO in real engine combustors.
- OSTI ID:
- 5206760
- Journal Information:
- Journal of Engineering for Gas Turbines and Power; (United States), Journal Name: Journal of Engineering for Gas Turbines and Power; (United States) Vol. 114:1; ISSN JETPE; ISSN 0742-4795
- Country of Publication:
- United States
- Language:
- English
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ACCIDENTS
AIRCRAFT
BLOWOUTS
COMBUSTORS
COMPUTER CODES
DESIGN
EQUIPMENT
FABRICATION
FLAMES
GAS TURBINES
MACHINERY
RESEARCH PROGRAMS
TURBINES
TURBOMACHINERY