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A Statistical State Analysis of a Marine Gas Turbine

CINAV (Centro de Investigação Naval), Portuguese Naval Academy, 2810-001 Almada, Portugal
Mechanical and Industrial Engineer Department, Faculty of Science and Technology of the Universidade Nova of Lisbon, 1099-085 Lisbon, Portugal
Author to whom correspondence should be addressed.
Actuators 2019, 8(3), 54;
Received: 27 March 2019 / Revised: 1 July 2019 / Accepted: 3 July 2019 / Published: 8 July 2019
PDF [2256 KB, uploaded 8 July 2019]


This paper describes the analysis, from a statistical point of view, of a maritime gas turbine, under various operating conditions, so as to determine its state. The data used concerns several functioning parameters of the turbines, such as temperatures and vibrations, environmental data, such as surrounding temperature, and past failures or quasi-failures of the equipment. The determination of the Mean Time Between Failures (MTBF) gives a rough estimate of the state of the turbine, but in this paper we show that it can be greatly improved with graphical and statistical analysis of data measured during operation. We apply the Laplace Test and calculate the gas turbine reliability using that data, to define the gas turbine failure tendency. Using these techniques, we can have a better estimate of the turbine’s state, and design a preventive observation, inspection and intervention plan. View Full-Text
Keywords: gas turbine; functioning parameters; reliability; maintenance gas turbine; functioning parameters; reliability; maintenance

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Lampreia, S.; Vairinhos, V.; Lobo, V.; Requeijo, J. A Statistical State Analysis of a Marine Gas Turbine. Actuators 2019, 8, 54.

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