Power plants – Combustion products used as motive fluid – Combustion products generator
Patent
1992-11-10
1994-06-21
Bertsch, Richard A.
Power plants
Combustion products used as motive fluid
Combustion products generator
60748, F23R 332
Patent
active
053219473
ABSTRACT:
The lean premix combustion approach for NOx emissions control in gas turbine combustion systems has led to the problems of increased combustion pressure oscillation during engine operation and flame outs during rapid engine load reduction. Combustion pressure oscillation can reduce the durability of the engine and combustion system components to unacceptable levels. Flame outs can make the engine unacceptable from the operational viewpoint. The use of a control device allows the combustion pressure oscillation amplitude to be controlled to levels required for long durability of the combustion system components. It also allows an engine control system to operate the engine at part load condition and during rapid load reduction without flame out. When used at small levels, its effect on the engine NOx emissions is small. Higher levels may sometimes be needed to control the combustion pressure oscillation to acceptable levels. In such a situation, the penalty of increased NOx emissions has to be accepted in order to have an operationally acceptable engine.
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Article entitled "Ongoing Development of a Low Emission Industrial Gas Turbine Combustion Chamber" published in the Journal of Engineering for Power, Jul. 1980, vol. 102, pp. 549-554 by V. M. Sood and J. R. Shekleton.
Maden Kenneth H.
Sood Virendra M.
Bertsch Richard A.
Cain Larry G.
Solar Turbines Incorporated
Thorpe Timothy S.
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