In performance simulation of gas turbine, some iteration processes for searching the operating point, which should be matched through gas path components, would be needed. Therefore if the engine is very complicated, the efficiency of convergence is getting lower due to increasing the number of routines and iterations for matching procedure. Furthermore, there may be some problems in numerical calculation such as the tendency of divergence, instability, and increase of calculation time. In the traditional matching methods, after some variable parameters are initially assumed and then calculated, the calculation is iterated to converge within an appropriate error range by expressing the new variables with the previous calculation error function. Even though these traditional methods show comparatively reasonable results in performance simulation, there may be some unsatisfied results in particular cases. Moreover, in this case it can be more difficult in more precise calculation due to simplification by using various assumptions. Therefore in order to search the optimal matching point in performance simulation of gas turbine efficiently and quickly, the fuzzy approaches were applied. In performance simulation using the fuzzy logic, it was found that more effective engine operating points were found and calculation time was considerably reduced less than the traditional methods. Furthermore, MATLAB was used to apply the fuzzy logic easily as well as to make user-friendly circumstance in performance analysis.
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e-mail: cdgong@mail.chosun.ac.kr
e-mail: setgods@hotmail.com
e-mail: k0914@stmail.chosun.ac.kr
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October 2004
Technical Papers
Fuzzy Approaches for Searching Optimal Component Matching Point in Gas Turbine Performance Simulation
Changduk Kong,
e-mail: cdgong@mail.chosun.ac.kr
Changduk Kong
Department of Aerospace Engineering, Chosun University, #375 Seosuk-dong, Dong-gu, Kwangju 501-759, Korea
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Jayoung Ki,
e-mail: setgods@hotmail.com
Jayoung Ki
Department of Aerospace Engineering, Chosun University, #375 Seosuk-dong, Dong-gu, Kwangju 501-759, Korea
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Myoungcheol Kang
e-mail: k0914@stmail.chosun.ac.kr
Myoungcheol Kang
Department of Aerospace Engineering, Chosun University, #375 Seosuk-dong, Dong-gu, Kwangju 501-759, Korea
Search for other works by this author on:
Changduk Kong
Department of Aerospace Engineering, Chosun University, #375 Seosuk-dong, Dong-gu, Kwangju 501-759, Korea
e-mail: cdgong@mail.chosun.ac.kr
Jayoung Ki
Department of Aerospace Engineering, Chosun University, #375 Seosuk-dong, Dong-gu, Kwangju 501-759, Korea
e-mail: setgods@hotmail.com
Myoungcheol Kang
Department of Aerospace Engineering, Chosun University, #375 Seosuk-dong, Dong-gu, Kwangju 501-759, Korea
e-mail: k0914@stmail.chosun.ac.kr
Contributed by the International Gas Turbine Institute (IGTI) of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Paper presented at the International Gas Turbine and Aeroengine Congress and Exhibition, Atlanta, GA, June 16–19; 2003, Paper No. 2003-GT-38148. Manuscript received by IGTI, Oct. 2002, final revision, Mar. 2003. Associate Editor: H. R. Simmons.
J. Eng. Gas Turbines Power. Oct 2004, 126(4): 741-747 (7 pages)
Published Online: November 24, 2004
Article history
Received:
October 1, 2002
Revised:
March 1, 2003
Online:
November 24, 2004
Citation
Kong, C., Ki, J., and Kang, M. (November 24, 2004). "Fuzzy Approaches for Searching Optimal Component Matching Point in Gas Turbine Performance Simulation ." ASME. J. Eng. Gas Turbines Power. October 2004; 126(4): 741–747. https://doi.org/10.1115/1.1787511
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