Flame Symptom Modelling Near Lean Blowout in a Swirl-Stabilized Gas Turbine Model Combustor

DOI

10.2991/mems.2012.1How to use a DOI?

Keywords

Turbine lean premixed combustion; Double-stage swirl combustion chamber; Lean blow out Symptom; Numerical simulation.

Abstract

Abstract—Lean premixed combustion offers a practical approach for the reduction of NOx emissions, but increases the risk of lean burn blow out (LBO) in gas turbines. Flame behavior in terms of stability is simulated in a model gas turbine combustor burning aviation kerosene at atmospheric pressure. The flame symptom close to LBO, where the flame propagates in the broken-reaction zone (BRZ) regime in double swirl combustor is studied when the main influence parameter of first to second stage air flow ratio is 1:5. Adjusting the dimensionless ratio of oil/air equivalence to 0.35 is identified as significant perturbation source for inducing unstable combustion. Results of simulation show a good agreement with obtained data of other test.

Copyright

© 2012, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - WANG Lijun
AU  - QI Dongdong
AU  - YANG Haifeng
PY  - 2012/12
DA  - 2012/12
TI  - Flame Symptom Modelling Near Lean Blowout in a Swirl-Stabilized Gas Turbine Model Combustor
BT  - Proceedings of the 1st International Conference on Mechanical Engineering and Material Science (MEMS 2012)
PB  - Atlantis Press
SP  - 1
EP  - 4
SN  - 1951-6851
UR  - https://doi.org/10.2991/mems.2012.1
DO  - 10.2991/mems.2012.1
ID  - Lijun2012/12
ER  -