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Design Considerations For Remote High-Speed Pressure Measurements Of Dynamic Combustion Phenomena.

DE2007917417

Publication Date	2007
Personal Author	Straub, D. L.; Ferguson, D. H.; Rohrssen, R.; Perez, E.
Page Count	11
Abstract	As gas turbine combustion systems evolve to achieve ultra-low emission targets, monitoring and controlling dynamic combustion processes becomes increasingly important. These dynamic processes may include flame extinction, combustion-driven instabilities, or other dynamic combustion phenomena. Pressure sensors can be incorporated into the combustor liner design, but this approach is complicated by the harsh operating environment. One practical solution involves locating the sensor in a more remote location, such as outside the pressure casing. The sensor can be connected to the measurement point by small diameter tubing. Although this is a practical approach, the dynamics of the tubing can introduce significant errors into the pressure measurement. This paper addresses measurement errors associated with semi-infinite coil remote sensing setups and proposes an approach to improve the accuracy of these types of measurements.
Keywords	Gas turbines Combustion Remote sensing Pressure measurement Tubing Detectors Nitrogen oxides Pollution control Emissions
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	National Energy Technology Lab., Morgantown, WV.; West Virginia Univ., Morgantown.; Department of Energy, Washington, DC.
Supplemental Notes	Prepared in cooperation with West Virginia Univ., Morgantown. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200805

Design Considerations For Remote High-Speed Pressure Measurements Of Dynamic Combustion Phenomena.

Design Considerations For Remote High-Speed Pressure Measurements Of Dynamic Combustion Phenomena.
DE2007917417

Publication Date	2007
Personal Author	Straub, D. L.; Ferguson, D. H.; Rohrssen, R.; Perez, E.
Page Count	11
Abstract	As gas turbine combustion systems evolve to achieve ultra-low emission targets, monitoring and controlling dynamic combustion processes becomes increasingly important. These dynamic processes may include flame extinction, combustion-driven instabilities, or other dynamic combustion phenomena. Pressure sensors can be incorporated into the combustor liner design, but this approach is complicated by the harsh operating environment. One practical solution involves locating the sensor in a more remote location, such as outside the pressure casing. The sensor can be connected to the measurement point by small diameter tubing. Although this is a practical approach, the dynamics of the tubing can introduce significant errors into the pressure measurement. This paper addresses measurement errors associated with semi-infinite coil remote sensing setups and proposes an approach to improve the accuracy of these types of measurements.
Keywords	Gas turbines Combustion Remote sensing Pressure measurement Tubing Detectors Nitrogen oxides Pollution control Emissions
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	National Energy Technology Lab., Morgantown, WV.; West Virginia Univ., Morgantown.; Department of Energy, Washington, DC.
Supplemental Notes	Prepared in cooperation with West Virginia Univ., Morgantown. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200805