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Benefits
Summary Display
Dynamics Display
AS-250 SpectralMonTM
AS-1050-FE Hardware |
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In recent years, environmental regulations have forced power generation plants to lower NOx emissions by burning a leaner flame in the combustor. As a result, many sites have experienced combustor pulsations that amplify as they move through the turbine. This pressure amplification produces significant vibration that can damage the turbine package.
In order to avoid or minimize the amount of damage to the turbine and peripheral components, it is essential to quickly detect the presence of these combustor pulsations and to alter the combustion process such as by changing the fuel mixture.
The AS-250 SpectralMonTM system provides around-the-clock monitoring of the pressure pulsation dynamic signature. It allows operators to apply a rich set of test criteria to help catch this phenomenon as early as possible. Once detected, the system instantly informs the distributed control system (DCS) to take corrective actions.
The system provides a detailed historical log of the pulsation events to help correlate these events with other changes in the process such as fuel mixture or quality. It also provides a live update of the current dynamic pressure frequency spectrum. In addition, the operator is able to analyze the data offline in the comfort of an office setting.
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