Download or read book Gas Turbine Advanced Performance Simulation written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Current commercial `state of the art' engine simulation software is of a low fidelity. Individual component performance characteristics are typically represented via nondimensional maps with empirical adjustments for off-design effects. Component nondimensional characteristics are usually obtained through the averaging of experimental readings from rig test analyses carried out under nominal operating conditions. In those cases where actual component characteristics are not available and default maps are used instead, conventional simulation tools can offer a good prediction of the performance of the whole engine close to design point, but can deviate substantially at of design and transient conditions. On the other hand, even when real component characteristics are available, zero-dimensional engine cycle simulation tools can not predict the performance of the engine at other than nominal conditions satisfactorily. Low-fidelity simulation tools are generally incapable of analyzing the performance of individual engine components in detail, or capturing complex physical phenomena such as inlet flow distortion. Although the available computational power has increased exponentially over the last two decades, a detailed, three-dimensional analysis of an entire propulsion system still seems to be so complex and computationally intensive as to remain cost-prohibitive. For this reason, alternative methods of integrating different types and levels of analysis are necessary. The integration of simulation codes that model at different levels of fidelity into a single simulation provides the opportunity to reduce the overall computing resource needed, while retaining the desired level of analysis in specific engine components. The objective of this work was to investigate different simulation strategies for communicating the performance characteristics of an isolated gas turbine engine component, resolved from a detailed, high-fidelity analysis, to an engine system analysis ca.

Download or read book Advanced Performance Simulation of Gas Turbine Components and Fluid Thermodynamic Properties written by Vishal Sethi and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The VIVACE European Cycle Program (?VIVACE-ECP?) was part of the virtualengine sub-project of VIVACE and was worth 6.63 million Euros. The main outcome of the?VIVACE-ECP? was the development of a cost effective gas turbine simulationenvironment called PROOSIS. PROOSIS, which is the Greek word for?propulsion?, is anacronym for?PRopulsion Object Oriented SImulation Software?. PROOSIS was developedby facilitating optimal use of multi-partner gas turbine performance simulation researchand development resources and expertise. PROOSIS is a single framework whichprovides shared standards and methodologies for the European Union (EU) gas turbinecommunity, including original equipment manufacturers (OEMs), industrial companies, universities and research centres. The primary objective of this doctoral thesis is to present advanced performancesimulation models of gas turbine components and advanced fluid modelling capabilitiesdeveloped by the author for the PROOSIS standard components library (SCLib). The mainaims of this research are to provide a detailed insight into the effects of dissociation onfluid thermodynamic properties and subsequently on gas turbine performance. Detaileddescriptions of the development of an advanced fluid model and a robust flow continuitymodel, which are the foundation of the PROOSIS standard component library, areprovided. The effects of dissociation on isolated Burner and Afterburner components aswell as overall engine performance are discussed with the aid of several case studies. Additionally, advanced performance simulation models of Burner and Afterburnercomponents are presented. The development of an extended parametric representation ofcompressor characteristics is also analysed. Several advanced capabilities of PROOSIS(including test analysis, customer deck generation, 3D compressor zooming anddistributed computing) are also introduced. The?evolution of PROOSIS? is presented withan in-depth analysis of the collaborative structure and project management of the VIVACE-ECP, as well as the channels of communication, technology transfer and quality control. Aclear emphasis is placed on the contribution of the author to each of these tasks andsubsequently the?VIVACE-ECP? as a whole. The main outcome of this work is the development of an advanced fluid modelwhich comprises multi-dimensional fluid property tables for several fuels. The advancedfluid model also caters for?levels of dissociation? ranging from?no dissociation? tochemical equilibrium. This advanced fluid model is complimented by a robust flowcontinuity model, also developed by the author, which calculates the unknown local flowproperties at any point in an engine model. These robust, advanced fluid and flowcontinuity models facilitate improved accuracy thereby providing a solid foundation forseveral advanced gas turbine performance simulation capabilities.

Download or read book Gas Turbines written by Gurrappa Injeti and published by BoD – Books on Demand. This book was released on 2015-02-25 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents current research in the area of gas turbines for different applications. It is a highly useful book providing a variety of topics ranging from basic understanding about the materials and coatings selection, designing and modeling of gas turbines to advanced technologies for their ever increasing efficiency, which is the need of the hour for modern gas turbine industries. The target audience for this book is material scientists, gas turbine engine design and maintenance engineers, manufacturers, mechanical engineers, undergraduate, post graduate students and academic researchers. The design and maintenance engineers in aerospace and gas turbine industry will benefit from the contents and discussions in this book.This book presents current research in the area of gas turbines for different applications. It is a highly useful book providing a variety of topics ranging from basic understanding about the materials and coatings selection, designing and modeling of gas turbines to advanced technologies for their ever increasing efficiency, which is the need of the hour for modern gas turbine industries. The target audience for this book is material scientists, gas turbine engine design and maintenance engineers, manufacturers, mechanical engineers, undergraduate, post graduate students and academic researchers. The design and maintenance engineers in aerospace and gas turbine industry will benefit from the contents and discussions in this book.

Download or read book Advanced Control of Turbofan Engines written by Hanz Richter and published by Springer Science & Business Media. This book was released on 2011-10-20 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Control of Turbofan Engines describes the operational performance requirements of turbofan (commercial) engines from a controls systems perspective, covering industry-standard methods and research-edge advances. This book allows the reader to design controllers and produce realistic simulations using public-domain software like CMAPSS: Commercial Modular Aero-Propulsion System Simulation, whose versions are released to the public by NASA. The scope of the book is centered on the design of thrust controllers for both steady flight and transient maneuvers. Classical control theory is not dwelled on, but instead an introduction to general undergraduate control techniques is provided. Advanced Control of Turbofan Engines is ideal for graduate students doing research in aircraft engine control and non-aerospace oriented control engineers who need an introduction to the field.

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 2013-12-11 with total page 328 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.

Download or read book Simulation of Gas Turbine Dynamic Performance written by H. I. H. Saravanamuttoo and published by . This book was released on 1970 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advanced Technologies for Gas Turbines written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2020-03-19 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Leadership in gas turbine technologies is of continuing importance as the value of gas turbine production is projected to grow substantially by 2030 and beyond. Power generation, aviation, and the oil and gas industries rely on advanced technologies for gas turbines. Market trends including world demographics, energy security and resilience, decarbonization, and customer profiles are rapidly changing and influencing the future of these industries and gas turbine technologies. Technology trends that define the technological environment in which gas turbine research and development will take place are also changing - including inexpensive, large scale computational capabilities, highly autonomous systems, additive manufacturing, and cybersecurity. It is important to evaluate how these changes influence the gas turbine industry and how to manage these changes moving forward. Advanced Technologies for Gas Turbines identifies high-priority opportunities for improving and creating advanced technologies that can be introduced into the design and manufacture of gas turbines to enhance their performance. The goals of this report are to assess the 2030 gas turbine global landscape via analysis of global leadership, market trends, and technology trends that impact gas turbine applications, develop a prioritization process, define high-priority research goals, identify high-priority research areas and topics to achieve the specified goals, and direct future research. Findings and recommendations from this report are important in guiding research within the gas turbine industry and advancing electrical power generation, commercial and military aviation, and oil and gas production.

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

Download or read book Propulsion and Power written by Joachim Kurzke and published by Springer. This book was released on 2018-05-28 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is written for engineers and students who wish to address the preliminary design of gas turbine engines, as well as the associated performance calculations, in a practical manner. A basic knowledge of thermodynamics and turbomachinery is a prerequisite for understanding the concepts and ideas described. The book is also intended for teachers as a source of information for lecture materials and exercises for their students. It is extensively illustrated with examples and data from real engine cycles, all of which can be reproduced with GasTurb (TM). It discusses the practical application of thermodynamic, aerodynamic and mechanical principles. The authors describe the theoretical background of the simulation elements and the relevant correlations through which they are applied, however they refrain from detailed scientific derivations.

Download or read book Progress in Gas Turbine Performance written by Ernesto Benini and published by BoD – Books on Demand. This book was released on 2013-06-19 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: There has been a remarkable difference in the research and development regarding gas turbine technology for transportation and power generation. The former remains substantially florid and unaltered with respect to the past as the superiority of air-breathing engines compared to other technologies is by far immense. On the other hand, the world of gas turbines (GTs) for power generation is indeed characterized by completely different scenarios in so far as new challenges are coming up in the latest energy trends, where both a reduction in the use of carbon-based fuels and the raising up of renewables are becoming more and more important factors. While being considered a key technology for base-load operations for many years, modern stationary gas turbines are in fact facing the challenge to balance electricity from variable renewables with that from flexible conventional power plants. The book intends in fact to provide an updated picture as well as a perspective view of some of the abovementioned issues that characterize GT technology in the two different applications: aircraft propulsion and stationary power generation. Therefore, the target audience for it involves design, analyst, materials and maintenance engineers. Also manufacturers, researchers and scientists will benefit from the timely and accurate information provided in this volume. The book is organized into three main sections including 10 chapters overall: (i) Gas Turbine and Component Performance, (ii) Gas Turbine Combustion and (iii) Fault Detection in Systems and Materials.

Download or read book Flow and Combustion in Advanced Gas Turbine Combustors written by Johannes Janicka and published by Springer Science & Business Media. This book was released on 2012-10-29 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: With regard to both the environmental sustainability and operating efficiency demands, modern combustion research has to face two main objectives, the optimization of combustion efficiency and the reduction of pollutants. This book reports on the combustion research activities carried out within the Collaborative Research Center (SFB) 568 “Flow and Combustion in Future Gas Turbine Combustion Chambers” funded by the German Research Foundation (DFG). This aimed at designing a completely integrated modeling and numerical simulation of the occurring very complex, coupled and interacting physico-chemical processes, such as turbulent heat and mass transport, single or multi-phase flows phenomena, chemical reactions/combustion and radiation, able to support the development of advanced gas turbine chamber concepts

Download or read book Advances in Gas Turbine Technology written by Ernesto Benini and published by BoD – Books on Demand. This book was released on 2011-11-04 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas turbine engines will still represent a key technology in the next 20-year energy scenarios, either in stand-alone applications or in combination with other power generation equipment. This book intends in fact to provide an updated picture as well as a perspective vision of some of the major improvements that characterize the gas turbine technology in different applications, from marine and aircraft propulsion to industrial and stationary power generation. Therefore, the target audience for it involves design, analyst, materials and maintenance engineers. Also manufacturers, researchers and scientists will benefit from the timely and accurate information provided in this volume. The book is organized into five main sections including 21 chapters overall: (I) Aero and Marine Gas Turbines, (II) Gas Turbine Systems, (III) Heat Transfer, (IV) Combustion and (V) Materials and Fabrication.

Download or read book Advanced Turbulent Combustion Modeling for Gas Turbine Application written by Andrea Donini and published by Andrea Donini. This book was released on with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: In spite of the increasing presence of renewable energy sources, fossil fuels will remain the primary supply of the world's energy needs for the upcoming future. Modern gas-turbine based systems represent one of the most efficient large-scale power generation technology currently available. Alongside this, gas-turbine power plants operate with very low emissions, have flexible operational characteristics and are able to utilize a broad range of fuels. It is expected that gas-turbine based plants will play an important role as an effective means of converting combustion energy in the future as well, because of the vast potential energy savings. The numerical approach to the design of complex systems such as gas-turbines has gained a continuous growth of interest in the last few decades. This because simulations are foreseen to provide a tremendous increase in the combustor efficiency, fuel-flexibility and quality over the next future. In this dissertation, an advanced turbulent combustion technique is implemented and progressively developed for the simulation of all the features that are typically observed in stationary gas-turbine combustion, including hydrogen as a fuel. The developed turbulent combustion model retains most of the accuracy of a detailed simulation while drastically reducing its computational time. As a result of this work, the advancement of power generation plants can be accelerated, paving the way for future developments of alternative fuel usage in a cleaner and more efficient combustion.

Download or read book Advanced Gas Turbine Cycles written by J.H. Horlock and published by Elsevier. This book was released on 2013-10-22 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: Primarily this book describes the thermodynamics of gas turbine cycles. The search for high gas turbine efficiency has produced many variations on the simple "open circuit" plant, involving the use of heat exchangers, reheating and intercooling, water and steam injection, cogeneration and combined cycle plants. These are described fully in the text. A review of recent proposals for a number of novel gas turbine cycles is also included. In the past few years work has been directed towards developing gas turbines which produce less carbon dioxide, or plants from which the CO2 can be disposed of; the implications of a carbon tax on electricity pricing are considered. In presenting this wide survey of gas turbine cycles for power generation the author calls on both his academic experience (at Cambridge and Liverpool Universities, the Gas Turbine Laboratory at MIT and Penn State University) and his industrial work (primarily with Rolls Royce, plc.) The book will be essential reading for final year and masters students in mechanical engineering, and for practising engineers.

Download or read book Combustion in Advanced Gas Turbine Systems written by I. E. Smith and published by Elsevier. This book was released on 2014-05-17 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cranfield International Symposium Series, Volume 10: Combustion in Advanced Gas Turbine Systems covers the proceedings of an International Propulsion Symposium, held at the College of Aeronautics in Cranfield in April 1967. The book focuses on the processes, methodologies, reactions, and transformations involved in chemical combustion. The selection first takes a look at the design considerations in advanced gas turbine combustion chambers, combustion in industrial gas turbines, and combustion development on the Rolls-Royce Spey engine. Discussions focus on mechanical condition, carbon-formation and exhaust smoke, system requirements, fuel oil ash deposition and corrosion, combustion-system design, performance requirements, types of primary zone, fuel injection, and combustion chamber types. The text then examines subsonic flow flameholder studies using a low pressure simulation technique; stabilization of hydrogen diffusion flames by flame-holders in supersonic flow at low stagnation temperatures; and augmentation systems for turbofan engines. The book takes a look at a consideration of the possible use of refractory ceramic materials for advanced combustion chamber design; cooling of flame tubes by steam injection; and combustion problems in the massive steam injection gas turbine. The selection is a valuable source of information for researchers interested in the process of combustion in advanced gas turbine systems.

Download or read book Digital Simulation of Gas Turbine Steady state and Transient Performance for Current and Advanced Marine Propulsion Systems written by Bhavik Mody and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The research study focuses on the idea of simulation of an Integrated FullElectric Propulsion System. The simulation required the development of a gasturbine performance model that could predict the dynamic behaviour of theengine in response to a fluctuation of electrical load. For this purposes it wasnecessary to evaluate the thermodynamic working process of the gas turbineand a computer code was created. A design point model written in FORTRAN77 had been transformed to predict the steady state and transientperformance of a two-shaft gas turbine and single shaft gas turbine. Themodels were based on the thermodynamic law of conservation of mass. Forthe model of the two-shaft gas turbine controls system equations had beenderived from off-design analysis and implemented as handles for operation. Both the models were then transformed to a direct link library for theSIMULINK? package. They were further implemented with an electricalnetwork model to form a high-fidelity prime mover-electrical networkpropulsiondrive interface with which a complete systems analysis was doneto understand the response of the three systems in parallel. In a second part heat exchanger modelling had to be performed so as tocreate a gas turbine model of an intercooled-recuperated engine. This wasdone for the steady state behaviour and sizing problem of heat exchangers. The models were run parallel to the steady state code as a validationexercise. Due to time and project restraints the complete incorporation of themodels with the gas turbine code was not performed and only a uni-directionalsystem of heat exchanger was created. Over all the period of researchparametric studies had been done for comparison of various aspects ofperformance. The high fidelity model of the prime mover-electrical network highlighted thereasons for studying the impact of the propulsion drive and electrical networkload dynamics on the operation of the prime movers and vice versa. The loss-of-propulsion-load scenario case study has demonstrated the capabilities ofthe integrated model, showing clear interactions between the individualsubsystems. The interface can now be used to analyse novel types of gasturbine engines in the future. The method adopted to simulate transientperformance of gas turbines was useful in understanding the impact of bleedair on current and novel cycles. Finally the task of heat exchanger simulationemphasized the need to create better and accurate models to understand theimpact of its behaviour on the gas turbine.

Download or read book Real Time Simulation of an Automotive Gas Turbine Using the Hybrid Computer written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-14 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: A hybrid computer simulation of an Advanced Automotive Gas Turbine Powertrain System is reported. The system consists of a gas turbine engine, an automotive drivetrain with four speed automatic transmission, and a control system. Generally, dynamic performance is simulated on the analog portion of the hybrid computer while most of the steady state performance characteristics are calculated to run faster than real time and makes this simulation a useful tool for a variety of analytical studies. Costakis, W. and Merrill, W. C. Glenn Research Center NASA-TM-83593, E-1994, DOE/NASA/51040-52, NAS 1.15:83593 DE-AI01-77CS-51040; RTOP 505-34-02...