Analyzing failure modes of turbochargers for engine-based power plants by combined SWARA-FMEA approach.

Autor: Farhan, Ahmed, Siraj, Md. Tanvir, Nishi, Aklima Ahmed, Jamil, Sheikh Navid Shadab, Ahmed, Rafsan, Kabir, Asif, Hossen, Saddam
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Zdroj: AIP Conference Proceedings; 2023, Vol. 2825 Issue 1, p1-9, 9p
Abstrakt: A turbocharger is an essential mounting installed with the Internal Combustion (IC) engine of an engine-based power plant. Analyzing various failure modes of a turbocharger and their effects on operational safety and the performance of the engine is a crucial task for the managers of power plants. However, most of the existing scholarly articles on turbochargers' failure modes focused only on automobile turbochargers. Therefore, this study is conducted to determine some of the critical failure modes of industrial turbochargers mounted with large diesel engines of power plants through a relevant literature review. Then a Stepwise Weight Assessment Ratio Analysis (SWARA) and a Failure Mode and Effects Analysis (FMEA) are carried on with a combined approach to find the Risk Priority Number (RPN) of the failure modes. In this study, three criteria of the classic FMEA method-severity, probability, and detectability are weighted by the SWARA method. Then the weights are utilized in the FMEA to find the RPN values based on the weights of the criteria. Experienced maintenance managers of power plants have participated in a simple questionnaire-based evaluation process to opine in various steps of this study. In this study, surging of the turbocharger, rubbing of rotating parts, and increase in speed are detected as the top three failure modes with the highest RPN. The result achieved from this study is expected to help the managers of power plants to be more careful with the prioritized failure modes of the turbochargers for early detection and avoiding unnecessary failures. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index