Browse > Article
http://dx.doi.org/10.5762/KAIS.2019.20.12.663

A Study of the Valid Model(Kernel Regression) of Main Feed-Water for Turbine Cycle  

Yang, Hac-Jin (Dept. of Mechatronics, Jeju Tourism University)
Kim, Seong-Kun (Division of Mechanical and Automotive Engineering, Hoseo University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.20, no.12, 2019 , pp. 663-670 More about this Journal
Abstract
Corrective thermal performance analysis is required for power plants' turbine cycles to determine the performance status of the cycle and improve the economic operation of the power plant. We developed a sectional classification method for the main feed-water flow to make precise corrections for the performance analysis based on the Performance Test Code (PTC) of the American Society of Mechanical Engineers (ASME). The method was developed for the estimation of the turbine cycle performance in a classified section. The classification is based on feature identification of the correlation status of the main feed-water flow measurements. We also developed predictive algorithms for the corrected main feed-water through a Kernel Regression (KR) model for each classified feature area. The method was compared with estimation using an Artificial Neural Network (ANN). The feature classification and predictive model provided more practical and reliable methods for the corrective thermal performance analysis of a turbine cycle.
Keywords
Main Feed-Water; Valid Model; Artificial Neural Network; Kernel Regression; Turbine Cycle;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 American Society of Mechanical Engineers, Performance Test Code 12.2, "Steam Condensing Apparatus", 1983.
2 T. Fernando, H. Maier, G. Dnady, "Selection of input variables for data driven models: An average shifted histogram partial mutual information estimator approach", Journal of Hydrology, Vol. 367, pp.165-176, 2009. DOI: https://doi.org/10.1016/j.jhydrol.2008.10.019   DOI
3 H. J. Yang, S. K. Kim, K. H. Choi, "A Study of the Feature Classification and the Predictive Model of Main Feed-Water Flow for Turbine Cycle", Journal of Energy Engineering, Vol. 23, No. 4, pp.263-271, 2014. DOI: https://doi.org/10.5855/ENERGY.2014.23.4.263   DOI
4 S. K. Kim, K. H. Choi, "Development of Performance Analysis System(NOPAS) for Turbine Cycle of Nuclear Power Plant", Journal of Korean Nuclear Society, Vol. 33, No. 1, pp.211-218, 2001.
5 S. K. Kim, K. H. Choi, "Development of Performance Analysis Methodology for Nuclear Power Plant Turbine Cycle using Validation Model of Performance Measurement", Journal of KSME, Vol. 24, No. 12, pp.1625-1634, 2001. DOI: http://dx.doi.org/10.22634/KSME-B.2000.24.12.1625
6 American Society of Mechanical Engineers, Performance Test Code 6, "Steam Turbines", 1976.
7 American Society of Mechanical Engineers, Performance Test Code 6A, "Appendix A to Test Code for Steam Turbine", 1982.
8 American Society of Mechanical Engineers, Performance Test Code 12.1, "Closed Feed Water Heaters", 1978.
9 H. J. Yang, A study of the feature classification and the predictive algorithms of main feed-water for turbine cycle, Ph.D Dissertation, Hoseo University, Asan, Korea, pp.85-88, 2011.
10 H. J. Yang, S. K. Kim, "A Predictive Model of the Generator Output Based on the Learning of Performance Data in Power Plant", Journal of the Korea Academia-Industrial Cooperation Society, Vol. 16, No. 12, pp.8753-8759, 2015. DOI: https://doi.org/10.5762/KAIS.2015.16.12.8753   DOI
11 N. Cristianini, J. Shawe-Taylor, "Introduction to Support Vector Machines and other Kernel-based Learning Method", Cambridge University Press, 2000.