A Study on Non Destructive Evaluation of the Steam Turbine L-0 Blades

Mizanur, Rahman Md.; Rezk, Osama; Ouma, Victor Otieno; Vaysidin, Saidov; Gomaa, M. Abdullatif; Jung, JaeCheon; Lee, YongKwan

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자료유형: 학술저널

저자정보: Mizanur, Rahman Md. (KEPCO International Nuclear Graduate School [KINGS]) Rezk, Osama (KEPCO International Nuclear Graduate School [KINGS]) Ouma, Victor Otieno (KEPCO International Nuclear Graduate School [KINGS]) Vaysidin, Saidov (KEPCO International Nuclear Graduate School [KINGS]) Gomaa, M. Abdullatif (KEPCO International Nuclear Graduate School [KINGS]) Jung, JaeCheon (KEPCO International Nuclear Graduate School [KINGS]) Lee, YongKwan (KEPCO International Nuclear Graduate School [KINGS])

저널정보: 한국시스템엔지니어링학회 시스템엔지니어링학술지 시스템엔지니어링학술지 제12권 제1호

발행연도: 2016.1

수록면: 59 - 71 (13page)

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The Nuclear and Fossil Steam Turbines record a considerable number of failures annually. Some of these failures reported are as result of blade failure. The failure of the L-0 blade in a Steam Turbine is one of the most reported blade failure in Nuclear and Fossil steam turbines. This paper seeks to identify the best Non Destructive Evaluation (NDE) method or methods to be used in the steam turbine L-0 blades inspection process. The development of systems engineering processes presents an opportunity to apply NDE inspection to the L-0 blades. This process apply computer modelling of the L-0 using ANSYS and by simulating the stresses experienced by the L-0 blade during operation it is possible to identify the most susceptible areas for crack formation and growth. The results from these models compared to industry data for validation. The analysis of these results used to predict the most probable failure location and failure modes. Therefore NDE inspection can be applied to these areas with greater degree of accuracy. This would be beneficial in the increasing the accuracy in the detection of cracks and hence save inspection time and the overall inspection cost. Furthermore, not only the location for crack formation and NDE inspection determined but also best the NDE inspection technique/techniques to be applied appropriately on the L-0 blade are prescribed.

#Steam Turbine #NDE #Systems Engineering #L-0 Blade #PAUT

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