<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The third part of the article presents a method for detecting failures of the automatic engine control system with the aid of an exhaust gas temperature setter, specially designed and machined for this purpose. It also presents a procedure of identifying the operating tolerances and determining the diagnostic tolerances for the exhaust gas temperature recorded in the naval turbine engine during the start-up and acceleration processes. The diagnostic tolerances were determined using the statistic inference, based on the hypothesis about the normal distribution of the starting exhaust gas temperature dispersion at the initial time of engine operation. The above hypothesis was verified using the non-parametric statistic test χ<sup>2</sup> for examining the consistency of the empirical distribution with the assumed normal distribution. As a result of the examination, satisfactory convergence of the compared distributions was obtained which made the basis for assuming the three-sigma limits of the diagnostic tolerance for the analysed engine control parameter.</p></abstract>

The third part of the article presents a method for detecting failures of the automatic engine control system with the aid of an exhaust gas temperature setter, specially designed and machined for this purpose. It also presents a procedure of identifying the operating tolerances and determining the diagnostic tolerances for the exhaust gas temperature recorded in the naval turbine engine during the start-up and acceleration processes. The diagnostic tolerances were determined using the statistic inference, based on the hypothesis about the normal distribution of the starting exhaust gas temperature dispersion at the initial time of engine operation. The above hypothesis was verified using the non-parametric statistic test χ2 for examining the consistency of the empirical distribution with the assumed normal distribution. As a result of the examination, satisfactory convergence of the compared distributions was obtained which made the basis for assuming the three-sigma limits of the diagnostic tolerance for the analysed engine control parameter.

Exhaust gas temperature measurements in diagnostic examination of naval gas turbine engines

Polish Maritime Research

The third part of the article presents a method for detecting failures of the automatic engine control system with the aid of an exhaust gas temperature...

Exhaust gas temperature measurements in diagnostic examination of naval gas turbine engines

Published Online: Jan 06, 2012

Page range: 49 - 53

DOI: https://doi.org/10.2478/v10012-011-0026-7

Keywords
technical diagnostics, naval turbine engines, exhaust gas temperature, operating and diagnostic tolerances

This content is open access.

Exhaust gas temperature measurements in diagnostic examination of naval gas turbine engines

Published Online: Jan 06, 2012

Page range: 49 - 53

DOI: https://doi.org/10.2478/v10012-011-0026-7

Keywordstechnical diagnostics, naval turbine engines, exhaust gas temperature, operating and diagnostic tolerances

This content is open access.

Keywords
technical diagnostics, naval turbine engines, exhaust gas temperature, operating and diagnostic tolerances