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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Bulat, Ghenadie Liu, Kexin Brickwood, Gavin Sanderson, Victoria Igoe, Brian |
| Copyright Year | 2011 |
| Abstract | The use of an innovative, intelligent control algorithm applied to the Siemens SGT-300 DLE engine is described. The algorithm ensures stable operation and minimises emissions over a wide variation in fuel composition. The Siemens 8MW class SGT-300 gas turbine has been in operation at the University of New Hampshire (USA) since 2006. As well as operating on natural gas or diesel, the engine also operates on a gas processed from a landfill. These gases have a variable Wobbe Index (WI) covering the range 29.7 to 49 MJ/m3. No modifications have been required to the standard DLE combustion hardware. Introduction of the intelligent control algorithm has been instrumental in achieving this tri-fuel capability. Accumulation of more than 10 000 hours running on non-standard fuel has been achieved. The intelligent control algorithm exploits knowledge of the stable operating window through continual modification of the fuel schedule to avoid both lean blow out and high metal temperatures. Operationally, this results in a reduction in the NOx emissions, through controlling the unmixedness, and higher engine reliability, through the response of the algorithm to flame stability. Combining these advantages the control algorithm can deliver reliable engine operation on variable composition fuels when using standard combustion hardware achieving single digit NOx emissions not only on natural gas but also on processed landfill gas. This paper describes the control algorithm and presents results of the development from high pressure combustion rig and engine development test to field operation with both natural gas and processed landfill gas. |
| Sponsorship | International Gas Turbine Institute |
| Starting Page | 917 |
| Ending Page | 925 |
| Page Count | 9 |
| File Format | |
| ISBN | 9780791854624 |
| DOI | 10.1115/GT2011-46103 |
| Volume Number | Volume 2: Combustion, Fuels and Emissions, Parts A and B |
| Conference Proceedings | ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition |
| Language | English |
| Publisher Date | 2011-06-06 |
| Publisher Place | Vancouver, British Columbia, Canada |
| Access Restriction | Subscribed |
| Subject Keyword | Temperature Stability Metals Combustion Fuels Sanitary landfills Engines Emissions Gases High pressure (physics) Flames Gas turbines Algorithms Control algorithms Nitrogen oxides Hardware Diesel Combustion systems Reliability Natural gas |
| Content Type | Text |
| Resource Type | Article |
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