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Development of a Software System for Measurements of Combustion Dynamics of a Dry Low NOx Gas Turbine  

Jang, Wook (Department of Building Services Engrg., Graduate School, Hanbat Nat'l U.)
Seo, Seok-Bin (Power Generation Research Lab., Korea Electric Power Research Institute)
Jung, Jae-Hwa (Power Generation Research Lab., Korea Electric Power Research Institute)
An, Dal-Hong (Power Generation Research Lab., Korea Electric Power Research Institute)
Kim, Jong-Jin (Power Generation Research Lab., Korea Electric Power Research Institute)
Cha, Dong-Jin (Department of Building Services Engrg., Hanbat Nat'l U.)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.14, no.11, 2002 , pp. 931-938 More about this Journal
Abstract
Combustion dynamics of a dry low NOx gas turbine have been measured by utilizing a dynamic pressure measurement system. The software part of the measurement system, implemented with a commercial general-purpose DASYLab version 5.6 code, basically acquires combustion dynamics signals, performs the FFT analysis, and displays the results. The gas turbine often experiences momentary combustion instability, especially when its combustion mode changes. It is found that the measurement system developed in the study may outperform the other commercial dynamic pressure measurement system. The developed system currently serves to monitor the combustion dynamics of the gas turbine.
Keywords
Dry low NOx gas turbine; Combustion dynamics; Combustion instability; Instrumentation;
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