Individual Burner Trim

In response to the rising environmental demands for emission regulation while satisfying power requirements, we have consistently prioritized these concerns. With the fluctuating power demand, the importance of flexible operation while maintaining minimal emissions across all power output ranges is ever-increasing. We are proud to introduce our new Individual Burner Trim product. This is a step forward in achieving reduced NOx emissions over a wider load range on an annual basis. The Individual Burner Trim is now available for all SGT-800 models ranging from 45 MW to 62 MW.

The Individual Burner Trim product incorporates individual main gas valves installed between the main gas or dual fuel manifold and each burner, allowing precise fuel distribution for optimised combustion. It also requires Advanced Emission Tuning (AET) to be installed alongside the product if not already in place. The combined installation of individual main gas valves and AET results in low NOx emissions over a wider load range.

Possibility of reducing NOx emission over a wider load range, see figure.
The Individual Burner Trim contributes to a uniform turbine inlet temperature profile with increased combustion stability by reducing the risk of combustion related pulsations.
Potential for improved operational flexibility due to the possibility of low NOx on loads below 50%.
Up to 50% ammonia reduction in the Selective Catalytic Reduction (SCR) process.

The implementation of the Individual Burner Trim is best done during a Hot Gas Path Inspection or a Major Overhaul, as these are periods of expected downtime.
Once the Individual Burner Trim is installed, an additional one to two days of combustion tuning should be schelduled for all subsequent Hot Gas Path Inspections and Major Overhauls.
This upgrade should be planned at least a year in advance due to the lead time for parts.
A well established and functioning remote connection is highly recommended to enable remote supportive actions such as combustion tuning.
All installation and commissioning must be carried out by Siemens Energy qualified field service engineers.