However, when delivering the gas turbines to the customers the manufacturers do not expose thermodynamic property information or any other intermediate thermodynamic properties. Four modifications to the simple cycle engine are considered here. As increased pressure is put on companies to deliver additional gas, produce additional power and meet new environmental standards, it is prudent to seek to maximize machinery capabilities using proven techniques and stateoftheart instrumentation, with a team of. The area of gas turbine recoverable and nonrecoverable performance degradation will be comprehensively treated in this tutorial. Converge contains accurate models for all steps of the spray process, including primary and secondary breakup, filming, splashing, coalescence, and collision. Results for gas turbine performance software from ebsilon and other leading brands. A gas turbine is a dynamic internal combustion engine. When we compare the performance of a gas turbine to that of a steam turbine, it becomes immediately evident that steam turbine performance is much easier to calculate, since both the vapor and the vapor conditions are fixed.
Gas generator is derived from the f404 turbofan aircraft engine. In the gas transmission and power generation industries, machinery performance is often directly related to the bottom line. Our heavyduty and aeroderivative gas turbines are proven performers in a range of applications, capable of achieving worldclass efficiency with nextgeneration capabilities. Proosis has all the capabilities of ecosimpro plus some additional capabilities required for simulating aeronautical gas turbines such as performance maps handling.
Up to 2,5 % gas turbine power increase up to 0,1 % heat rate improvement in simple cycle operation increased exhaust energy for. The gas turbine is an internal combustion engine that uses air as the working fluid. Proosis is currently the stateoftheart tool for advanced gas turbine engine performance and is essentially an acronym for propulsion object oriented simulation software. Design point calculations for other gas turbine engine types are similar in format to that given above for a single spool turbojet. Optimize gas turbine performance using acoustic simulation. Epri is at the center of a quickly evolving energy landscape. Since a gas turbine is an airbreathing engine, its performance is changed by anything that affects the density andor mass flow of the air intake to the compressor. The gas turbine performance software on this website is useful for those working in the gas turbine industry, aircraft engine and airframe manufacturing, the airline industry, aircraft engine maintenance, power generation industry and for other operators of air, land and seabased gas turbines. With this software you can investigate how a jet or turbine engine produces thrust by interactively changing the values of different engine parameters. Dynamic performance simulation of an aeroderivative gas. Ensuring gas turbines run at maximum efficiency is a primary goal for operators. Gasturb is a gas turbine performance calculation and optimization program. For example, gas turbine power at partload may be a function of air temperature, inlet pressure, igv, and turbine inlet temperature. The aim of this study was to demonstrate a model with the ability to simulate the performance of single, 2 and 3 shaft gas turbines with run times compatible with realtime applications with highfidelity accuracy.
The components are represented by a set of suitable performance maps that are available from the open literature. Optimizing gas turbine performance with precise humidity. Create finite volume mesh for 3d model of gas turbine by using ansys icem cfd software and import into ansys fluent software. Proosis, propulsion object oriented simulation software. Monitoring gas turbine performance power engineering. Professional software for gas turbine performance calculations. However there is a very fine piece of gas turbine performance software developed by joachim kurzke of rwth aachen university in germany. The concepts developed will be used to derive basic principles for successful condition monitoring and performance testing of gas turbines. Img gsp cdp develop your own libraries and components. Development of a gas turbine performance analysis program. Introduction to simturbo c innovative, new software for gas turbine engine design, development, simulation and analysis via a graphical user interface. The intensely competitive nature of the nonutility generatorindependent power producer industry means that project success is. The engine model has been validated with an established gas turbine performance simulation software.
Turbine cooling is just a small part of the total engine system cooling challenges combustor system cooling, heat exchangers, casings, bores, compressor and turbine disks, bearings and gears etc. Aeroderivative and heavyduty gas turbines ge power. Simple intuitive graphical user interface to create cycles and configure components. The gas turbine outlet temperature is maintained at the level of t4a 630 c. Pdf the study focused on the effect of ambient temperature in summer season june, july, and august in kirkuk city on gas turbine thermal. Turbomachinery blog what are some factors affecting gas.
Fortunately, there are several ways to improve gas turbine output. It was validated by closely predicting performance of commercial gas turbines. Single shaft cold end drive and two shaft hot end drive gas turbines. Optimize gas turbine performance using acoustic simulation software increasingly fierce competition driven by deregulation and privatization is putting downward pressure on power plant operations. Design a software program to compute the gas turbine performance. Rapidly model and simulate gas turbine models with a user friendly gui. Full thermochemical gas model allows specification of the gas and fuel composition.
Practical techniques for modeling gas turbine engine. Gas turbine design software turbomachinery design software. The software uses tables of manufacturers performance curves to predict the expected performance of a gas turbine as a function of ambient temperature, ambient. Gas turbine performance monitoring software power online. Today, these maps are usually embedded in software programs that allow the calculation of performance parameters of the engine. Thermal efficiency is a prime factor in gas turbine performance. Built for engineers, managers, researchers and students alike. The performance characteristics of a gas turbine engine or gas turbine generator package gtg depends upon the type and model of engine being examined, the location at which it will be installed, the ambient conditions under which it will. Temperature, software program, gas turbine, visual studio, efficiency.
Model virtually any gas turbine cycle for design, steadystate or transient analysis. Deterioration mechanisms including compressor and turbine fouling, erosion, increased clearances, and seal distress will be covered along with their manifestations, rules of thumb, and mitigation approaches. Emissions reduction highly efficient in the whole operating range allowing you. Practical techniques for modeling gas turbine engine performance je ryes w. The models connect faults of different engine components with the corresponding changes. Power increase increased power performance could be one of the beneficial advantages which we can offer for existing gas turbines, some of which have been in operation for more than 15 years. Ge gas turbine performance characteristics mechanical drive gas turbine ratings ms7000 pg 12 ea number model of shafts application series power approx output power in hundreds, thousands, or 10 thousands of horsepower r regen blank sc frame 1 or 2 3,5,7 6,9 mech drive pkgd gen m pg 7 1 figure 1. Softinway has extensive experience with gas turbine design and optimization. It simulates most of the gas turbine configurations in use for propulsion or for power. In the current economic climate, anything that increases productivity, and hence profit, is clearly welcome. It is the ratio of net work produced by the engine to the chemical energy supplied in the form of fuel. The simple ideal cycle and the real cycle engines were considered in the first paper. These are regenerative cycle, intercooled cycle, reheat cycle, and the cycle with all three.
Because the gas turbine performance varies significantly from one design to the other, the procedure to determine the performance of the engine for a specified operating point is to use the manufacturers performance maps. Woodward gas turbine control platforms are purpose built to accurately and reliably control and protect single or multiple rotor gas turbines of all sizes. What do typical performance maps of gas turbines show. Gas turbine design aspects and performance deterioration in order to understand gas turbine and deterioration issues, some basic aerodynamic and mechanical design issues are covered. What is the best software to do a gas turbine simulation. Fuel types, and typical issues arising from the use of certain fuels, as well as the importance of appropriate gas turbine inlet air filtration are addressed. Much gas turbine software is proprietary to the engine companies. The developed model was verified using commercial gas turbine performance software.
Asset performance management leverages cuttingedge technology to monitor the performance, health and the safety of your gas turbine by ge experts in order to reduce downtime, avoid engine damage and remotely resolve issues. The engineer exhaust gases are directed to the turbo wheel via turbine housing. At the heart of a combinedcycle power plant is the gas turbine, the machine that has the power to make a good solution great. In the paper a calculation methodology of isentropic efficiency of a compressor and turbine in a gas turbine installation on the basis of polytropic efficiency characteristics is presented. The energy available in the exhausted gas is connected into kinetic energy by the turbine housing and is used for driving the turbine wheel and compressor wheels. A gas turbine engine is a thermal device and so it is composed of a range of major and minor cooling and heating systems. A gt master plant model is defined by its hardware, by contrast with a gt pro model which is defined by the assumptions used to. From our flagship software platform axstream to axcycle, designed for the thermodynamic simulation and heat balance calculations of heat production and electric energy cycles, to our extensive engineering consultant services, you can rest assured that all your project needs will be met by our engineering experts. Correlation accuracy ban be improved by using heat balance outputs as inputs. Axcycle software allows users to analyze thermodynamic processes in each. The firing temperature increase modernization can be a highly costeffective means for improving the performance of your gas turbine plant. Liquid fuel simulations of aviation and power gas turbines are easy and robust thanks to a wide variety of spray modeling options in converge. In modern, high performance gas turbines such as the present two engines, a considerable amount of air is extracted from the compressor for turbine cooling.
This upgrade allows 24 x 7 access to operating data and advisory services. The methodology of the gas turbine efficiency calculation. Gas turbine performance simulation, analysis and design. Three main limiting factors in gas turbine design and development are. Ambient weather conditions are the most obvious changes from the pressure and temperature of reference, respectively 14. The turbocharger turbine consists of the turbine wheel and the turbine housing. Development and application of gas turbine performance. However there is a very fine piece of gas turbine performance software developed by joachim kurzke of rwth aachen university in germany, called gasturb. Performance monitoring for gas turbines performance monitoring for gas turbines josef petek product line leader, performance software ge energy josef. Analyze existing gas turbines and their performance at. Time responses of the main variables that describe the gas turbine dynamic behavior are also included. If a performance parameter is dependent upon several other variables, a correlation can predict it expected values.
Gas turbine cycle analysis turbomachinery design software. Perform flow analysis of gas turbine compressor outer case for different inlet air flow temperatures by using. Littz nasa glenn research center, cleveland oh, 445, usa the cost and risk associated with the design and operation of gas turbine engine sys. The power turbine of the pgt16 gas turbine is identical to that of the pgt10 heavy duty, high efficiency gas turbine which has been in operation for more than half a million hours. Pgt25 aeroderivative gas turbines the pgt25 gas turbine consists of an lm2500 ge aeroderivative gas. The program can simulate the operation of various gas turbine cycles. Development of a gas turbine performance analysis program and its.
With significant challenges facing the electric industry and the world, we are always seeking top talent with handson experience to address issues as they relate to the generation, delivery, use, management and environmental responsibility of global electricity. Each platforms rigid deterministic performance and scalable io options make it ideal for challenging gas turbine applications. Midya azad ismail, ihsan mohmmed khudhur and nawzad j. The three most important factors affecting the thermal efficiency are turbine inlet temperature, compression ratio, and the. The design point calculation for a two spool turbojet, has two compression calculations. Recently 20, there have been several security patches added to the java runtime environment jre. In this study analyzed the thermodynamics combined cycle with a different configuration. In helicopter engines, compressor airfoils are often affected by erosion because of dust and sand in the sucked air meherhomji et al. The developed model was verified using commercial gas turbine performance software 5. From an environmental point of view, it is also important that turbines run as efficiently and produce as few emissions as possible.
1347 1454 1199 147 858 843 527 209 888 1062 1462 855 1163 198 719 976 427 1428 411 1283 1093 1600 1188 1134 1120 757 730 1303 442 651 994 663 1240 23 1212 997