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http://dx.doi.org/10.5139/JKSAS.2013.41.8.639

Combustion Performance Test of Syngas Gas in a Model Gas Turbine Combustor - Part 2 : NOx/CO emission Characteristics, Temperature Characteristics and Flame Structures  

Lee, Min Chul (Korea Electric Power Corporation, KEPCO Research Institute)
Yoon, Jisu (Seoul National University, School of Mechanical and Aeronautic Engineering)
Joo, Seong Pil (Seoul National University, School of Mechanical and Aeronautic Engineering)
Yoon, Youngbin (Seoul National University, School of Mechanical and Aeronautic Engineering)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.41, no.8, 2013 , pp. 639-648 More about this Journal
Abstract
This paper describes on the NOx/CO emission characteristics, temperature characteristics and flame structures when firing coal derived synthetic gas especially for gases of Buggenum and Taean IGCC. These combustion characteristics were observed by conducting ambient-pressure elevated-temperature combustion tests in GE7EA model combustor when varying heat input and nitrogen dilution ratio. Nitrogen addition caused decrement in adiabatic flame temperature, thus resulting in the NOx reduction. At low heat input condition, nitrogen dilution raised the CO emission dramatically due to incomplete combustion. These NOx reduction and CO arising phenomena were observed at certain flame temperature of $1500^{\circ}C$ and $1250^{\circ}C$, respectively. As increasing nitrogen dilution, adiabatic flame temperature and combustor liner temperature were decreased and singular points were detected due to change in flame structure such as flame lifting. From the results, the effect of nitrogen dilution on the NOx/CO and flame structure was examined, and the test data will be utilized as a reference to achieve optimal operating condition of the Taean IGCC demonstration plant.
Keywords
Synthetic Gas; Integrated Gasification Combined Cycle; Gas Turbine Combustion; Nitrous Oxides; Carbon Monoxide;
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Times Cited By KSCI : 1  (Citation Analysis)
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