Lean stability augmentation for premixing, prevaporizing combustorsAn experimental program was conducted to investigate techniques for improving the lean combustion limits of premixing, prevaporizing combustors applicable to gas turbine engine main burners. Augmented flameholders employing recessed perforated plates, catalyzed tube bundles, and configurations in which pilot fuel was injected into the wakes of V-gutters or perforated plates were designed and tested. Stable operation of the piloted designs was achieved at equivalence ratios as low as 0.25; NOx emissions of less than 1.0 g/kg at simulated turbine engine cruise conditions were obtained. A piloted perforated plate employing four percent pilot fuel flow produced the best performance while meeting severe NOx constraints.
Document ID
19790055022
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mcvey, J. B. (United Technologies Research Center East Hartford, CT, United States)
Kennedy, J. B. (United Technologies Research Center East Hartford, Conn., United States)
Date Acquired
August 9, 2013
Publication Date
June 1, 1979
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
AIAA PAPER 79-1319
Meeting Information
Meeting: AIAA, SAE, and ASME, Joint Propulsion Conference