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Author : Jerry Seitzman
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (611 download)
Download or read book Advanced Sensor Approaches for Monitoring and Control of Gas Turbine ... written by Jerry Seitzman and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kenneth A. Yackly
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (316 download)
Download or read book Enabling Technology for Monitoring & Predicting Gas Turbine Health & Performance in IGCC Powerplants written by Kenneth A. Yackly and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The ''Enabling & Information Technology To Increase RAM for Advanced Powerplants'' program, by DOE request, was re-directed, de-scoped to two tasks, shortened to a 2-year period of performance, and refocused to develop, validate and accelerate the commercial use of enabling materials technologies and sensors for coal/IGCC powerplants. The new program was re-titled ''Enabling Technology for Monitoring & Predicting Gas Turbine Health & Performance in IGCC Powerplants''. This final report summarizes the work accomplished from March 1, 2003 to March 31, 2004 on the four original tasks, and the work accomplished from April 1, 2004 to July 30, 2005 on the two re-directed tasks. The program Tasks are summarized below: Task 1--IGCC Environmental Impact on high Temperature Materials: The first task was refocused to address IGCC environmental impacts on high temperature materials used in gas turbines. This task screened material performance and quantified the effects of high temperature erosion and corrosion of hot gas path materials in coal/IGCC applications. The materials of interest included those in current service as well as advanced, high-performance alloys and coatings. Task 2--Material In-Service Health Monitoring: The second task was reduced in scope to demonstrate new technologies to determine the inservice health of advanced technology coal/IGCC powerplants. The task focused on two critical sensing needs for advanced coal/IGCC gas turbines: (1) Fuel Quality Sensor to rapidly determine the fuel heating value for more precise control of the gas turbine, and detection of fuel impurities that could lead to rapid component degradation. (2) Infra-Red Pyrometer to continuously measure the temperature of gas turbine buckets, nozzles, and combustor hardware. Task 3--Advanced Methods for Combustion Monitoring and Control: The third task was originally to develop and validate advanced monitoring and control methods for coal/IGCC gas turbine combustion systems. This task was refocused to address pre-mixed combustion phenomenon for IGCC applications. The work effort on this task was shifted to another joint GE Energy/DOE-NETL program investigation, High Hydrogen Pre-mixer Designs, as of April 1, 2004. Task 4--Information Technology (IT) Integration: The fourth task was originally to demonstrate Information Technology (IT) tools for advanced technology coal/IGCC powerplant condition assessment and condition based maintenance. The task focused on development of GateCycle. software to model complete-plant IGCC systems, and the Universal On-Site Monitor (UOSM) to collect and integrate data from multiple condition monitoring applications at a power plant. The work on this task was stopped as of April 1, 2004.
Author : T. E. Duffy
Publisher :
ISBN 13 :
Total Pages : 400 pages
Book Rating : 4.:/5 (227 download)
Download or read book Research Analysis of Advanced Sensors for Turbine Inlet Gas Temperature written by T. E. Duffy and published by . This book was released on 1970 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: The final report describes results of a program to perform a comprehensive research analysis of the various advanced methods of sensing and providing an electrical signal for controlling the Turbine Inlet Gas Temperature (TIGT) of advanced gas turbine engines and recommends three methods which appear most promising for further development. Phase I completed the literature search, concept definition and selection, engine interface constraints definition, and performance objectives of the system. A review of the operating objectives of the sensor (800 to 3000F, plus or minus 10F accuracy and a response time of 10 msec) indicates that the greatest consideration should be given to response. Advanced engines that employ compressor bleed for blade cooling will require extremely high response TIGT sensors to prevent over-temperature failure after inadvertent rapid engine surge. A total of twelve different concepts were selected for detailed engineering analysis. In Phase II each concept was analyzed for response, accuracy, reliability and other important factors that would determine its relative potential in solving the TIGT measurement problem. (Author).
Author : Committee on New Sensor Technologies: Materials and Applications
Publisher : National Academies Press
ISBN 13 : 0309587433
Total Pages : 146 pages
Book Rating : 4.3/5 (95 download)
Download or read book Expanding the Vision of Sensor Materials written by Committee on New Sensor Technologies: Materials and Applications and published by National Academies Press. This book was released on 1995-07-06 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in materials science and engineering have paved the way for the development of new and more capable sensors. Drawing upon case studies from manufacturing and structural monitoring and involving chemical and long wave-length infrared sensors, this book suggests an approach that frames the relevant technical issues in such a way as to expedite the consideration of new and novel sensor materials. It enables a multidisciplinary approach for identifying opportunities and making realistic assessments of technical risk and could be used to guide relevant research and development in sensor technologies.
Author :
Publisher :
ISBN 13 :
Total Pages : 37 pages
Book Rating : 4.:/5 (227 download)
Download or read book Need for Robust Sensors for Inherently Fail-Safe Gas Turbine Engine Controls, Monitoring, and Prognostics (Postprint). written by and published by . This book was released on 2006 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sensor reliability is critical to turbine engine control. Today's aircraft engines demand more sophisticated sensors in the control systems, requiring advanced engine testing for component performance demonstration. Expertise in the gas turbine instrumentation community is located across the gas turbine industry itself, within several specialized university departments serving to supplement the more general research programs in gas turbine research. Sensor technology has advanced in many fields; however, implementation has been slower in aerospace's push for engine health management through adaptive control systems demands more robust instrumentation with inherently fail safe sensors. The future needs of the USAF require innovative reliable control architectures. These needs require new ideas for turbine engine controls, employing the next generation computing, communication hardware and advanced sensors. Turbine engine control research includes: implementation, control theory, algorithms, sensors and transducers.
Author : Gennady G. Kulikov
Publisher : Springer Science & Business Media
ISBN 13 : 9781852337841
Total Pages : 346 pages
Book Rating : 4.3/5 (378 download)
Download or read book Dynamic Modelling of Gas Turbines written by Gennady G. Kulikov and published by Springer Science & Business Media. This book was released on 2004-06-03 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whereas other books in this area stick to the theory, this book shows the reader how to apply the theory to real engines. It provides access to up-to-date perspectives in the use of a variety of modern advanced control techniques to gas turbine technology.
Author : A. C. Raptis
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.:/5 (316 download)
Download or read book Advanced Sensors for Real-time Control of Advanced Natural-gas Reciprocating Engine Combustion written by A. C. Raptis and published by . This book was released on 2003 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the final report of a three-year project under a Department of Energy Advanced Reciprocating Engine Systems contract. The goal of this project is to develop advanced sensors for real-time combustion monitoring of advanced natural-gas reciprocating engines. Two sensor technologies, ion-mobility spectrometry (IMS) and acoustic gas sensing, were tested for detection of NO{sub x} emissions and monitoring of natural-gas composition. This project examined two novel approaches: use of a corona/spark-discharge ionization source for IMS, and acoustic-relaxation spectra of natural gas for the acoustic gas sensor. We have completed evaluation of laboratory prototypes of both sensors. In this report, we will describe the basic elements of the sensors, their operating and detection principles, their performance, and other issues. Design modifications and suggested applications of field prototypes will also be presented.
Author : Hamid Asgari
Publisher : CRC Press
ISBN 13 : 1498777546
Total Pages : 216 pages
Book Rating : 4.4/5 (987 download)
Download or read book Gas Turbines Modeling, Simulation, and Control written by Hamid Asgari and published by CRC Press. This book was released on 2015-10-16 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas Turbines Modeling, Simulation, and Control: Using Artificial Neural Networks provides new approaches and novel solutions to the modeling, simulation, and control of gas turbines (GTs) using artificial neural networks (ANNs). After delivering a brief introduction to GT performance and classification, the book:Outlines important criteria to consi
Author : Ousmane Nasr Diallo
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (794 download)
Download or read book A Data Analytics Approach to Gas Turbine Prognostics and Health Management written by Ousmane Nasr Diallo and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: As a consequence of the recent deregulation in the electrical power production industry, there has been a shift in the traditional ownership of power plants and the way they are operated. To hedge their business risks, the many new private entrepreneurs enter into long-term service agreement (LTSA) with third parties for their operation and maintenance activities. As the major LTSA providers, original equipment manufacturers have invested huge amounts of money to develop preventive maintenance strategies to minimize the occurrence of costly unplanned outages resulting from failures of the equipments covered under LTSA contracts. As a matter of fact, a recent study by the Electric Power Research Institute estimates the cost benefit of preventing a failure of a General Electric 7FA or 9FA technology compressor at $10 to $20 million. Therefore, in this dissertation, a two-phase data analytics approach is proposed to use the existing monitoring gas path and vibration sensors data to first develop a proactive strategy that systematically detects and validates catastrophic failure precursors so as to avoid the failure; and secondly to estimate the residual time to failure of the unhealthy items. For the first part of this work, the time-frequency technique of the wavelet packet transforms is used to de-noise the noisy sensor data. Next, the time-series signal of each sensor is decomposed to perform a multi-resolution analysis to extract its features. After that, the probabilistic principal component analysis is applied as a data fusion technique to reduce the number of the potentially correlated multi-sensors measurement into a few uncorrelated principal components. The last step of the failure precursor detection methodology, the anomaly detection decision, is in itself a multi-stage process. The obtained principal components from the data fusion step are first combined into a one-dimensional reconstructed signal representing the overall health assessment of the monitored systems. Then, two damage indicators of the reconstructed signal are defined and monitored for defect using a statistical process control approach. Finally, the Bayesian evaluation method for hypothesis testing is applied to a computed threshold to test for deviations from the healthy band.
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781721575411
Total Pages : 34 pages
Book Rating : 4.5/5 (754 download)
Download or read book Compact Laser-Based Sensors for Monitoring and Control of Gas Turbine Combustors written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-20 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research is reported on the development of sensors for gas turbine combustor applications that measure real-time gas temperature using near-infrared water vapor absorption and concentration in the combustor exhaust of trace quantities of pollutant NO and CO using mid-infrared absorption. Gas temperature is extracted from the relative absorption strength of two near-infrared transitions of water vapor. From a survey of the water vapor absorption spectrum, two overtone transitions near 1800 nm were selected that can be rapidly scanned in wavelength by injection current tuning a single DFB diode laser. From the ratio of the absorbances on these selected transitions, a path-integrated gas temperature can be extracted in near-real time. Demonstration measurements with this new temperature sensor showed that combustor instabilities could be identified in the power spectrum of the temperature versus time record. These results suggest that this strategy is extremely promising for gas turbine combustor control applications. Measurements of the concentration of NO and CO in the combustor exhaust are demonstrated with mid-infrared transitions using thermo-electrically cooled, quantum cascade lasers operating near 5.26 and 4.62 microns respectively. Measurements of NO are performed in an insulated exhaust duct of a C2H4-air flame at temperatures of approximately 600 K. CO measurements are performed above a rich H2-air flame seeded with CO2 and cooled with excess N2 to 1150 K. Using a balanced ratiometric detection technique a sensitivity of 0.36 ppm-m was achieved for NO and 0.21 ppm-m for CO. Comparisons between measured and predicted water-vapor and CO2 interference are discussed. The mid-infrared laser quantum cascade laser technology is in its infancy; however, these measurements demonstrate the potential for pollutant monitoring in exhaust gases with mid-IR laser absorption. Hanson, Ronald K. and Jeffries, Jay B. Ames Research Center
Author : Kenneth A. Yackly
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (316 download)
Download or read book Enabling Technology for Monitoring & Predicting Gas Turbine Health & Performance in COAL IGCC Powerplants written by Kenneth A. Yackly and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The ''Enabling & Information Technology To Increase RAM for Advanced Powerplants'' program, by DOE request, has been re-directed, de-scoped to two tasks, shortened to a 2-year period of performance, and refocused to develop, validate and accelerate the commercial use of enabling materials technologies and sensors for Coal IGCC powerplants. The new program has been re-titled as ''Enabling Technology for Monitoring & Predicting Gas Turbine Health & Performance in IGCC Powerplants'' to better match the new scope. This technical progress report summarizes the work accomplished in the reporting period April 1, 2004 to August 31, 2004 on the revised Re-Directed and De-Scoped program activity. The program Tasks are: Task 1--IGCC Environmental Impact on high Temperature Materials: This first materials task has been refocused to address Coal IGCC environmental impacts on high temperature materials use in gas turbines and remains in the program. This task will screen material performance and quantify the effects of high temperature erosion and corrosion of hot gas path materials in Coal IGCC applications. The materials of interest will include those in current service as well as advanced, high-performance alloys and coatings. Task 2--Material In-Service Health Monitoring: This second task develops and demonstrates new sensor technologies to determine the in-service health of advanced technology Coal IGCC powerplants, and remains in the program with a reduced scope. Its focus is now on only two critical sensor need areas for advanced Coal IGCC gas turbines: (1) Fuel Quality Sensor for detection of fuel impurities that could lead to rapid component degradation, and a Fuel Heating Value Sensor to rapidly determine the fuel heating value for more precise control of the gas turbine, and (2) Infra-Red Pyrometer to continuously measure the temperature of gas turbine buckets, nozzles, and combustor hardware.
Author :
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.:/5 (673 download)
Download or read book 馬産優秀グループ業績発表会報告書 written by and published by . This book was released on 1981 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. Tsalavoutas
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (64 download)
Download or read book Combining Advanced Data Analysis Methods for the Constitution of an Integrated Gas Turbine Condition Monitoring and Diagnostic System written by A. Tsalavoutas and published by . This book was released on 2000 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Link C. Jaw
Publisher : AIAA Education
ISBN 13 : 9781600867057
Total Pages : 0 pages
Book Rating : 4.8/5 (67 download)
Download or read book Aircraft Engine Controls written by Link C. Jaw and published by AIAA Education. This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Overview of engine control systems -- Engine modeling and simulation -- Model reduction and dynamic analysis -- Design of set-point controllers -- Design of transient and limit controllers -- Control system integration -- Advanced control concepts -- Engine monitoring and health management -- Integrated control and health monitoring -- Appendix A. Fundamentals of automatic control systems -- Appendix B. Gas turbine engine performance and operability.
Download or read book Condition Based Monitoring of Gas Turbine Combustion Components written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this program is to develop sensors that allow condition based monitoring of critical combustion parts of gas turbines. Siemens teamed with innovative, small companies that were developing sensor concepts that could monitor wearing and cracking of hot turbine parts. A magnetic crack monitoring sensor concept developed by JENTEK Sensors, Inc. was evaluated in laboratory tests. Designs for engine application were evaluated. The inability to develop a robust lead wire to transmit the signal long distances resulted in a discontinuation of this concept. An optical wear sensor concept proposed by K Sciences GP, LLC was tested in proof-of concept testing. The sensor concept depended, however, on optical fiber tips wearing with the loaded part. The fiber tip wear resulted in too much optical input variability; the sensor could not provide adequate stability for measurement. Siemens developed an alternative optical wear sensor approach that used a commercial PHILTEC, Inc. optical gap sensor with an optical spacer to remove fibers from the wearing surface. The gap sensor measured the length of the wearing spacer to follow loaded part wear. This optical wear sensor was developed to a Technology Readiness Level (TRL) of 5. It was validated in lab tests and installed on a floating transition seal in an F-Class gas turbine. Laboratory tests indicate that the concept can measure wear on loaded parts at temperatures up to 800°C with uncertainty of
Author : Theodor Doll
Publisher : Springer Science & Business Media
ISBN 13 : 144198612X
Total Pages : 200 pages
Book Rating : 4.4/5 (419 download)
Download or read book Advanced Gas Sensing written by Theodor Doll and published by Springer Science & Business Media. This book was released on 2011-06-27 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Gas Sensing focuses on the Electroadsorptive Effect: its theory, experimental measurement and applications in consumer gas sensors as well as in surface physics laboratory work. The Electroadsorptive Effect is invaluable when used in MEMS gas sensors. The authors use a general approach that covers new insights into temperature modulation and the use of light. The emphasis is given to electrical fields in gas sensors, which cause the Electroadsorptive Effect. The effect has long been known by experts working in the field, but has been regarded as too difficult for use until recently because of increasing sensor miniaturization. The book will serve as an introduction to sensitivity tuning of semiconductor gas sensors, introducing the underlying theory and experimental models before moving on to design considerations, applications and market considerations. A literature review and examples of experimental data are included.
Author : M. L. Nagurka
Publisher :
ISBN 13 :
Total Pages : 53 pages
Book Rating : 4.:/5 (227 download)
Download or read book Strategy for Advanced Sensing and Control of Combustion written by M. L. Nagurka and published by . This book was released on 1986 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the results of a one-year investigation of advanced issues related to sensing and control of combustion. The ultimate goal of this work is to develop procedures for optimizing and controlling the operating characteristics of gas turbine combustors. Toward this end, an extensive literature survey has been conducted, and model-based and heuristic-based control schemes have been proposed. Keywords: Controlled combustion; Distributed parameter control; Combustion; Optimization of combustion; Gas turbines.
