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| May 10, 2012
Optimize Power Plant Boiler Performance
Inspired by "GE ecomagination," advanced combustion control programs can reduce fuel usage by 3 to 5 percent and extend lifecycles of boiler and turbine assets.
Steam plant operators are looking for control solutions that will help them to optimize boiler efficiency by reducing fuel consumption while reducing emissions. GE Intelligent Platforms (www.GE-IP.com) can meet these needs for plants under 300MW with high performance, productized control solutions based on decades of domain expertise in steam cycle generation management that can reduce fuel usage while allowing boilers to run safely and efficiently.
GE’s Steam Cycle control solution is based on a flexible and scalable DCS--Proficy Process Systems--along with productized pre-packaged advanced combustion control algorithms and strategies for fossil and biomass fuels.
In addition, the solution keeps equipment safe and protected by maintaining the water level in the boiler to prevent damage. Because these control algorithms and strategies are pre-engineered, they are capable of reducing system implementation time by 50 percent to 80 percent.
“Power plants are running longer with shorter maintenance outages,” said Bill Pezalla, Global Energy Industry Manager for GE Intelligent Platforms. “The advantage of GE Intelligent Platforms’ DCS is that it is an open system that works with any type of boiler and can be implemented during a short maintenance outage leading to the realization of rapid fuel and water savings. These efficiencies need to be factored into the total cost of ownership when purchasing control systems.”
“We’ve extended our Steam Cycle Control solution approach beyond the boiler control by adding boiler and turbine auxiliary equipment control strategies providing an even more comprehensive solution for power plants,” said Craig Thorsland, Steam Cycle Solutions Leader for GE Intelligent Platforms. “Optimally, the overall control solution reduces the need for operator intervention. This stabilizes steam production and frees operators to focus on important plant operations. With stable and consistent operations, we reduce thermal stresses on the boiler and turbine extending their life cycles.”
The control system is able to handle conventional fossil fuels as well as the more difficult to control biomass and waste fuels. For biomass fuel plants, the natural variations in the quality and moisture content of the feedstock can results in steam production fluctuations. The system’s BTU combustion compensation control strategies ensure smooth and consistent steam production regardless of these variations. The system facilitates balancing combustion load when grates need to be offline for cleaning and when they are returned to service.
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