A DEMATEL Approach Based on Fuzzy Sets for Evaluating Critical Factors of Gas Turbine in Marine Engineering
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RESEARCH ARTICLE
A DEMATEL Approach Based on Fuzzy Sets for Evaluating Critical Factors of Gas Turbine in Marine Engineering Hakan Demirel 1 Received: 15 July 2019 / Accepted: 1 May 2020 # Harbin Engineering University and Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract In power production, gas turbines are commonly used components that generate high amount of energy depending on size and weight. They function as integral parts of helicopters, aircrafts, trains, ships, electrical generators, and tanks. Notably, many researchers are focusing on the design, operation, and maintenance of gas turbines. The focal point of this paper is a DEMATEL approach based on fuzzy sets, with the attempt to use these fuzzy sets explicitly. Using this approach, the cause–effect diagram of gas turbine failures expressed in the literature is generated and aimed to create a perspective for operators. The results of the study show that, “connecting shaft has been broken between turbine and gear box” selected the most important cause factor and “sufficient pressure fuel does not come for fuel pump” is selected the most important effect factor, according to the experts. Keywords DEMATEL method . Fuzzy sets . Marine engineering . Gas turbine . Failure
1 Introduction The gas turbine is defined as a type of internal combustion engine that ensures the conversion of natural gas or other liquid fuels into mechanical energy. The gas turbine allows a mixture of air and fuel to reach an extremely high temperature, triggering the turbine blades to rotate. A generator is powered by the rotating turbine for the conversion of energy into electricity. Put differently, hot gases are given off from burning of the air–fuel mixture in gas turbines, which causes power generation. The generated power is used in different areas. Researchers argue about gas turbine technology and enhanced maintenance practices.
Article Highlights • It is aimed to identify the cause and effect diagram of 14 critical failures in gas turbine with the help of the fuzzy DEMATEL method. • The fuzzy DEMATEL method employed for evaluating the critical factors by taking the experts opinions. • The results show that the cause and effect diagram of these factors can be useful for ship owners, ship’s safety inspectors, managers, and ocean environmentalists. * Hakan Demirel [email protected] 1
Department of Marine Engineering, Zonguldak Bülent Ecevit University, 67300 Zonguldak, Turkey
The fundamentals of turbine engine multiple-fault diagnosis were examined by Urban (1975), discussing the parameter selection and measurement requirements of gas turbine engines. Merrington et al. (1990) applied analytical redundancy methods to gas turbine engine transient data to extract the desired fault information. They stated that the proposed method produces better results compared with traditional methods. Stamatis et al. (1990) introduced a new method in relation to the simulation of gas turbine performance, with the possibility of adapting to engine properties. The ef
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