Apparatus and method for testing combustion

Details Apparatus and method for testing combustion Apparatus and method for testing combustion

2006-04-12

2008-11-25

Lau, Tung S (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Chemical analysis

Reexamination Certificate

active

07457710

ABSTRACT:
A sensor11detects the acoustic pressure at a first location in a combustion chamber7of a test rig1and produces an input signal which is a function of the acoustic pressure. A controller13receives the input signal and produces an output signal which is a function of the input signal. An acoustic actuator (16-18) receives the output signal and introduces into the combustion chamber7at a second location an acoustic pressure which is a function of the output signal. The acoustic actuator may comprise a fuel injector18or a loudspeaker. By using an appropriate control algorithm, acoustic boundary conditions corresponding to a particular gas turbine combustion chamber may be produced, at least in a certain frequency range.

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