Category Title
The trend to lower gas turbine emission levels over the last 25 years has been driven by regulation, competition, and customer requests. Regulatory requirements are ever-changing and vary significantly around the world. Despite the significant improvement in gas turbine emissions over the last decade, regulatory agencies continue to consider and implement more stringent emission regulations. In the last five years, mid-range gas turbine users in the U.S. have witnessed a large step-change reduction in required emission levels for gas turbines due to the application of NOx add-on control technologies such as Selective Catalytic Reduction (SCR) and CO oxidation catalyst. Emission regulations for industrial gas turbines continue to drive reductions in NOx, CO and UHC. In attempt to avoid the mandate for add-on control gas turbine manufacturers strive to develop DLE gas turbines that will meet the lower levels while increasing the operating range and fuel flexibility. In addition, regulatory pressures are increasing to monitor and control emissions of other species including particulate matter (PM), Sox, and hazardous air pollutants (HAPs) such as formaldehyde. Manufacturers continue DLE gas turbine combustion development work as the preferred approach to meet future requirements. Preventing pollutant formation has been shown to be more cost effective than exhaust clean-up from a life cycle cost perspective. Work is in progress using the latest experimental and analytical development tools to improve emissions and operating flexibility of lean premixed combustion systems The paper will discuss many of the advanced DLE technologies making their way to full commercialization and summarize field experience with the advanced technologies. Operational issues such as cold ambient operation will also be discussed.
Your Price $195.00
List Price $195.00