Gas Turbine Diagnostics
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Gas Turbine Diagnostics
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Author : Ranjan Ganguli
language : en
Publisher: CRC Press
Release Date : 2012-12-13
Gas Turbine Diagnostics written by Ranjan Ganguli and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-13 with Science categories.
Widely used for power generation, gas turbine engines are susceptible to faults due to the harsh working environment. Most engine problems are preceded by a sharp change in measurement deviations compared to a baseline engine, but the trend data of these deviations over time are contaminated with noise and non-Gaussian outliers. Gas Turbine Diagnostics: Signal Processing and Fault Isolation presents signal processing algorithms to improve fault diagnosis in gas turbine engines, particularly jet engines. The algorithms focus on removing noise and outliers while keeping the key signal features that may indicate a fault. The book brings together recent methods in data filtering, trend shift detection, and fault isolation, including several novel approaches proposed by the author. Each method is demonstrated through numerical simulations that can be easily performed by the reader. Coverage includes: Filters for gas turbines with slow data availability Hybrid filters for engines equipped with faster data monitoring systems Nonlinear myriad filters for cases where monitoring of transient data can lead to better fault detection Innovative nonlinear filters for data cleaning developed using optimization methods An edge detector based on gradient and Laplacian calculations A process of automating fault isolation using a bank of Kalman filters, fuzzy logic systems, neural networks, and genetic fuzzy systems when an engine model is available An example of vibration-based diagnostics for turbine blades to complement the performance-based methods Using simple examples, the book describes new research tools to more effectively isolate faults in gas turbine engines. These algorithms may also be useful for condition and health monitoring in other systems where sharp changes in measurement data indicate the onset of a fault.
Gas Turbine Diagnostics
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Author : Ranjan Ganguli
language : en
Publisher: CRC Press
Release Date : 2017-04-06
Gas Turbine Diagnostics written by Ranjan Ganguli and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-04-06 with Aircraft gas-turbines categories.
"A discussion of the different methods in data filtering, trend shift detection, and fault isolation developed over the past decade, this book provides a variety of new research tools for use in the condition monitoring of jet engines. Each method is demonstrated through numerical simulations which can be easily done using worksheets such as MS Excel or through Matlab. The algorithms presented will be useful to engineers and scientists working on fault diagnosis of gas turbine engines. The data cleaning algorithms based on nonlinear signal processing provided are also applicable to condition and health monitoring problems in general. "--
Modeling Of Turbomachines For Control And Diagnostic Applications
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Author : Igor Loboda
language : en
Publisher: BoD – Books on Demand
Release Date : 2020-05-27
Modeling Of Turbomachines For Control And Diagnostic Applications written by Igor Loboda and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-05-27 with Technology & Engineering categories.
This book presents new studies in the area of turbomachine mathematical modeling with a focus on models applied to developing engine control and diagnostic systems. The book contains one introductory and four main chapters. The introductory chapter describes the area of modeling of gas and wind turbines and shows the demand for further improvement of the models. The first three main chapters offer particular improvements in gas turbine modeling. First, a novel methodology for the modeling of engine starting is presented. Second, a thorough theoretical comparative analysis is performed for the models of engine internal gas capacities, and practical recommendations are given on model applications, in particular for engine control purposes. Third, multiple algorithms for calculating important unmeasured parameters for engine diagnostics are proposed and compared. It is proven that the best algorithms allow accurate prognosis of engine remaining lifetime.The field of wind turbine modeling is presented in the last main chapter. It introduces a general-purpose model that describes both aerodynamic and electric parts of a wind power plant. Such a detailed physics-based model will help with the development of more accurate control and diagnostic systems.In this way, this book includes four new studies in the area of gas and wind turbine modeling. These studies will be interesting and useful for specialists in turbine engine control and diagnostics.
Gas Turbine Characterization And Diagnostic Instrument Evaluation
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Author : G. H. Brawley
language : en
Publisher:
Release Date : 1989
Gas Turbine Characterization And Diagnostic Instrument Evaluation written by G. H. Brawley and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Gas-turbine power-plants categories.
Assessing Diagnostic Techniques For Problem Identification In Advanced Industrial Gas Turbines
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Author : Alexander Lifson
language : en
Publisher:
Release Date : 1990
Assessing Diagnostic Techniques For Problem Identification In Advanced Industrial Gas Turbines written by Alexander Lifson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Combustion categories.
This paper describes existing, developing, and needed methods for detection, identification, and diagnosis of problems in combustion turbines. The use of combustion turbines for electrical power generation is growing, and advanced models of large industrial turbines are now starting to enter service. In view of the harsh operating conditions and severe service to which these new turbines will be exposed, this paper evaluates sensors and signal analysis methods to detect and diagnose the problems which may surface in operation. Generic problems which have been observed in combustion turbine installations in the recent past are identified, and methods for detecting these problems, quantifying them, and isolating their causes are analyzed.
Diagnostics And Prognostics Of Aerospace Engines
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Author : Ravi Rajamani
language : en
Publisher: SAE International
Release Date : 2018-11-28
Diagnostics And Prognostics Of Aerospace Engines written by Ravi Rajamani and has been published by SAE International this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-11-28 with Technology & Engineering categories.
The propulsion system is arguably the most critical part of the aircraft; it certainly is the single most expensive component of the vehicle. Ensuring that engines operate reliably without major maintenance issues is an important goal for all operators, military or commercial. Engine health management (EHM) is a critical piece of this puzzle and has been a part of the engine maintenance for more than five decades. In fact, systematic condition monitoring was introduced for engines before it was applied to other systems on the aircraft. Diagnostics and Prognostics of Aerospace Engines is a collection of technical papers from the archives of SAE International, which introduces the reader to a brief history of EHM, presents some examples of EHM functions, and outlines important future trends. The goal of engine health maintenance is ultimately to reduce the cost of operations by catching problems before they become major issues, by helping reduce repair times through diagnostics, and by facilitating logistic optimization through prognostic estimates. Diagnostics and Prognostics of Aerospace Engines shows that the essence of these goals has not changed over time.
Steam Turbine Generators Process Control And Diagnostics
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Author : Udo Sill
language : en
Publisher: Publicis
Release Date : 1996-12-31
Steam Turbine Generators Process Control And Diagnostics written by Udo Sill and has been published by Publicis this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996-12-31 with Business & Economics categories.
To achieve the highest level of availability and cost-effectiveness the steam turbine generator set in power plants must be operated professionally at optimum thermodynamic performance. The modern I&C equipment (Instrumentation & Control) of Siemens Power Generation (KWU) and the on-line diagnostic system DIGEST help accomplish this by providing a comprehensive overview of the operating status and by analyzing the condition of the steam turbine generator set during operation. This equipment enables the early detection of incipient faults and lowers the burden of the operating crew. This book provides a broad overview of the state-of-the-art of I&C equipment and the use of diagnostic systems. The target group for this book are power plant operators, planning engineers and consultants.
Fault Detection And Diagnosis In Gas Turbines
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Author : Graeme Merrington
language : en
Publisher:
Release Date : 1990
Fault Detection And Diagnosis In Gas Turbines written by Graeme Merrington and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Aircraft gas-turbines categories.
Modern military aircraft are fitted with Engine Monitoring Systems (EMS), which have the potential to provide maintenance personnel with valuable information for diagnosing engine faults and assessing engine condition. In this study, analytical redundancy methods have been applied to gas turbine engine transient data with the view to extracting the desired fault information. The basic idea is to use mathematical models to interrelate the measured variables and then monitor the effects of fault conditions on the new estimates of the model parameters. In most of the existing literature the models used are assumed to be perfect with the primary source of error arising from the measurement noise. In the technique to be described, a new method of quantifying the effects of changes in the operating conditions is presented when simplified models are employed. The technique accounts for undermodeling effects and errors arising from linearization of an inherently nonlinear system. Results obtained show a marked improvement over those obtained with traditional methods.
Combusting Flow Diagnostics
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Author : D F G Durao
language : en
Publisher:
Release Date : 1991-11-30
Combusting Flow Diagnostics written by D F G Durao and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991-11-30 with categories.
Gas Turbine Parameter Corrections
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Author : Allan J. Volponi
language : en
Publisher: Springer Nature
Release Date : 2020-02-29
Gas Turbine Parameter Corrections written by Allan J. Volponi and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-29 with Technology & Engineering categories.
The volume provides an exhaustive catalog of common standard day corrections for gas turbine gas path parameters, explores their history, and, most importantly, provides a mathematical framework for the derivation of these important normalization factors. Although use of these corrections is common practice within industry, government, and academia, their genesis, and, in particular, how they can be derived from simple principles, is not general knowledge among many of those who use them on a regular basis. This book elucidates calculation of these important coefficients. Standing as a one-stop source on derivations and a methodology for additional parameter correction refinements, Gas Turbine Parameter Corrections, is ideal as a desk reference for practitioners and researchers, as well as supplemental instruction for university courses on gas turbine performance, control, and DPHM (diagnostics, prognostics and health management).