Journal
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Volume 49, Issue 2, Pages 211-216Publisher
SOC CHEMICAL ENG JAPAN
DOI: 10.1252/jcej.15we066
Keywords
NOX Emission Modeling; Principal Component Analysis; Support Vector Regression; Coal-Fired Boiler
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Funding
- Project on the Integration of Industry, Education and Research of Guangdong Province [2013B090500008]
- National Program of International Science and Technology Cooperation [2015DFA60410]
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Combustion optimization is an effective and economical approach for reducing nitrogen oxide (NOX) emissions from coal-fired utility boilers. To implement an online reduction in NOX, a precise and rapid NOX emissions model is required. This study establishes an effcient NOX emission model based on the principle component analysis (PCA) and support vector regression (SVR). Modeling performance comparisons were also conducted using a traditional artificial neural network (ANN) and SVR. A considerable amount of worthwhile real data was acquired from a 1000-MW coal-fired power plant to train and validate the PCA-SVR model, as well as the traditional ANN and SVR models. The predictive accuracy of the PCA-SVR model is considerably greater than that of the ANN and SVR models. The time consumed in the establishment of the PCA-SVR model is also shorter compared with that of the other two models. The proposed PCA-SVR model may be a better choice for the online or real-time modeling of NOX emissions in achieving a reduction of NOX emissions from coal-fired power plants.
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