Volume 38, Number 1, February 2020
|Page(s)||104 - 113|
|Published online||12 May 2020|
Optimal Design and Application of Gas Analysis System
School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072, China
To accurately measure the performance parameters of an aero-engine combustor under high-temperature and high-pressure environment, such as outlet temperature, combustion efficiency and pollutant emission, the optimal design of the existing gas sampling and analysis system was carried out, the data post-processing method was corrected, and the full-component enthalpy conservation method suitable for calculating combustor outlet temperature was established. A lean direct injection and low-pollution combustor was used to evaluate the performance and application of its gas analysis system and its data post-processing method. The investigation results indicate that the optimized gas analysis system meets the International Civil Aviation Organization's pollutant emission measurement requirements and that it has a fast response and a high data quality. The comparison of the measurement results of the gas analysis system with those of the traditional measurement methods shows that the gas analysis system has a more accurate measurement, a wider condition range and a better stability, thus accurately evaluating the outlet temperature, combustion efficiency and emission characteristics of a gas turbine combustor.
Key words: gas analysis / sampling rake / low emission / combustor / enthalpy conservation method
关键字 : 燃气分析 / 取样耙 / 低污染 / 燃烧室 / 焓值守恒法
© 2020 Journal of Northwestern Polytechnical University. All rights reserved.
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