Engines geae share many common links, including testing facilities for dln, compressor components, and steam. For 125 years, ge has been delivering innovative products and services that create significant value for our gas power generation customers as they face physical, financial, environmental and sustainability challenges. Pdf gas turbine axial compressor fouling and washing. Aeroderivative and heavyduty gas turbines ge power. A turbine blade is the individual component which makes up the turbine section of a gas turbine. Jun 03, 2014 the aircooled 9ha gas turbine is the worlds largest and most efficient gas turbine, providing ge s most cost effective conversion of fuel to power in the 50 hz hclass industry. In738 ge used in738 as a first stage blade material from 1971 until 1984. The icl package design is simple, widely accessible and approximately half the size of a conventional compressor. Tough challenges need to be met with smart solutions. Lms100 comprises a low pressure compressor, an intercooler, a supercore and a power turbine.
Over the last 75 years these compressors have been improved continuously, today achieving component efficiencies of more than 90%. Pdf the methodology of the gas turbine efficiency calculation. The original heavyduty design of the axialflow compressor was based on experience with the development of the. Industrial gas turbine online compressor washing for power generation. It is the evolution of the field proven pgt10a and incorporates the latest in aerodynamic design in a compact and versatile package arrangement. The compressor performances are optimized for a directcoupling to a gas turbine driver or an highspeed electric motor. The basic design and recommended maintenance of ge heavyduty gas turbines are oriented toward.
Relative creep capability of titanium al loys used for compressor parts in the form of a larson miller plot schematic. The gas turbines manufactured by ge energy have features that make them particularly suitable for pipeline compressor applications. Ge said the problem is an oxidation issue related to a metal alloy that could cause distress on the fan blades of its ha gas turbine, hulking machines that generate electricity for thousands. Ge power systems gas turbine and combined cycle products ms9001h ms9001fb ms7001fb ms9001fa ms7001fa ms9001e. Engineer, turbomachinery group, lng product development center, with bechtel corporation, in houston, texas. Have a look at one of our articles where we digitized one compressor map of ge lm2500 gas turbine with the title a component map tuning method for performance prediction and diagnostics of gas. The latest subvariant is the ms5001p, which has a 17stage compressor and variable inlet guide vanes. Supercore comprising hp compress or, compressor rear frame, high pressure turbine and intermediate pressure turbine is a development of the lm6000.
The sequential combustion concept results in a gas turbine exhibiting extremely high power density resulting in the smaller blade dimensions of the gt24gt26 machines. This approach delivers reliable, highperformance compressors for a range of applications. Its designed to stay on wing 20 percent longer, while using 30 percent fewer parts, helping to keep maintenance costs in check. In this case, a perpetual motion machine would exist. Uprate options for the ms7001 heavy duty gas turbine.
Gas turbines for industrial applications consist either of an air compressor driven by a gas generator turbine with a separate power turbine two shaft engine, figure 2 or of an air compressor and a turbine on one shaft, where the turbine provides both power for the air compressor and the load single shaft engine, figure 2. The lm1600 gas generator is derived from the f404 turbofan aircraft engine. This flexibility allows bhge to optimize the compressor train for maximum overall efficiency whether its driven by steam turbine, gas turbine, or electric motor. Folks how do you calculate gas turbine compressor efficiency. Ge discovers flaw in latest powerplant turbines wsj. Centrifugal compressors baker hughes, a ge company.
The ge10 has an 11stage axialflow compressor first three stages have variable geometry. The reason for this paper is to investigate the most economically viable approach for online compressor washing in industrial gas turbines, and as such, a gas turbine. Ge powers gas power systems business unites the strengths of ge and alstom, with their. Ge power systems gas turbine and combined cycle products ms9001h ms9001fb ms7001fb ms9001fa ms7001fa ms9001e ms7001ea ms6001fa ms6001c heavy duty output heat rate page two eight eight five six ten eleven seven thirteen fourteen igcc integrated gasification combined cycle overview sixteen small heavyduty and aero turbine products overview. Air from the compressor cools the highpressure turbine stage and the first three lowpressure turbine stages. The independent actions of separate turbine and compressor controls can adversely impact the process, and in turn, diminish the overall efficiency of the machinery. Wesorick ge industrial 8c power systems schenectady, ny introduction several important design philosophies have enabled the ge family of heavyduty gas turbines to achieve worldwide market leadership. The 6,500 rpm design speed means the turbine can have two stages with a moderate aerodynamic load and a high expansion efficiency. Extended warranty and a full suite of service offerings are available.
The power and efficiency characteristics of a gas turbine are therefore the result of a complex. The motor and compressor casing are flanged tightly together so the unit does not require threepoint skid mounting. Icl integrated compressor line baker hughes, a ge company. Dec, 2017 gas turbines need highly compressed air which provides high concentration oxygen for combustion of the fuel in the combustion chamber. By integrating the compressor and turbine controls into one common system, the ge itcc can optimize performance and maintain the necessary degree of reliability.
Aerodynamic blading obtains very high efficiency at both design and reduced speeds. If the compressor and the turbine were 100% efficient, the compressor would supply all the air needed by the turbine. What is the difference between a turbine and a compressor. Ge frame 5 gas turbine compressor drive application control package simpliied schematic showing a petrotech ge frame 5 compressor drive application control package integrated into an advanced plcbased control system. This genset is ideal for applications for which electric drive is the propulsion system of choice. Development of cmc turbine parts for aero engines pdf.
They are installed in natural gas plants, gas compression stations, oil booster stations, petrochemical plants and power generation and cogeneration plants worldwide. Gas fuel capacity control fuel pressure input srv ma output fcv ma output pcd input nst input thermocouple. The design also offers important versatility for optimizing compressor wheel material. Ges experience with compressor design spans several decades. Fclass turbine inspections and maintenance fact sheet. Ge axial compressors have proven to be durable, stable, and reliable. Integrated turbinecompressor control ge compressors pdf. Ge gas turbine performance characteristics ge power systems. Fclass enhanced compressor inspections and maintenance. Gas turbine combinedcycles physics, oregon state university. In addition, it must also provide power to drive the compressor and all engine accessories.
The ge integrated turbine compressor control itcc system is the oem solution designed to provide complete integrated control, protection and monitoring for. The compressor casing was opened insitu to determine the cause and the extent of the damage, and repairs were made to the turbine in a matter of days and at minimal expense. The amb system also translates directly into higher reliability and availability with 40% lower requested maintenance than a conventional compressor. Pcl centrifugal compressor baker hughes, a ge company. Pdf industrial gas turbine online compressor washing. Pcl compressors are equipped with tilting pad radial and thrust bearings and dry gas seals system. Turbine a turbine is a device that uses shaft work to drive an electric generator. Gea17900b 022016 to learn more about this offering, contact your ge sales representative or visit.
The aircooled 9ha gas turbine is the worlds largest and most efficient gas turbine, providing ges most cost effective conversion of fuel to power in the 50 hz hclass industry. Specifically for industrial frame engines, ie ge 7fa. The power turbine components are based on ges extensive experience with heavyduty gas turbines and axialcentrifugal compressors. Gas turbines catalog ge gas turbines pdf catalogs technical. Ger3808c uprate options for the ms7001 heavy duty gas. Axialflow compressors are used in the majority of large gas turbines, both in powerplants and aircraft jet engines.
Air entering the compressor at point 1 is com pressed to some higher pressure. Additional, longerterm areas for consideration and planning are the lives of the compressor rotor, turbine rotor, casings, and exhaust diffuser. The main elements common to all gas turbine engines are. The fieldproven maintainability of the gtd remains unchanged and the capability of further modular. Hot gas path inspection 1 free download as powerpoint presentation. The common shaft is provided by joining the turbine and compressor shafts by a suitable method.
At stork we understand the challenges of planned or unplanned overhauls of your businesscritical equipment. All workshops in our global network use the same innovative technologies and high standards. 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. Ge frame 3 gas turbine compressor drive application control package simpliied schematic showing a petrotech ge frame 3 gas turbine compressor drive application control package integrated into an advanced plcbased control system.
The three main components of a gas turbine are illustrated in figure 1. Ge energys pipeline centrifugal compressor line complements its gas turbine line to optimize matching with the gas turbine driver resulting in perfectly integrated gas turbine compressor units. The genxs emissions are up to 95 percent below current. Then they may produce a scaledup 3000 rpm directdrive variation solely for 50 hz duty e. Integrated turbinecompressor control ge compressors. Scribd is the worlds largest social reading and publishing site. Pima1 general electric ge10 forecast international. The combination of the compressor stages and turbine stages on a common shaft is an engine referred to as an engine spool. At the same time, the turbine would supply the necessary power to drive the compressor. Piller aseries atomizing air compressor piller aseries atomizing air compressor protect your ge frame gas turbine from expensive downtime are you the operator of an ge frame gas turbine.
Ge heavyduty gas turbine designs incorporate provisions in both compressor and turbine casings for borescope inspection. That turbine section is connected to a compressor section via a shaft or spool. Compressor configuration can be customized to meet performance requirements, including straightthrough, backtoback, doubleflow or multisection with intermediate cooling. We meet specific customer requirements by configuring each compressor using advanced technology components proven over a wide range of process conditions. Impellers can be milled from single forging or welded. Ge power systems gas turbine and combined cycle products. Over the years, the company has developed a unique inhouse capability for. His 25 years of industry experience encompasses turbomachinery design, engine development, vibration and failure analysis, and the testing of gas turbines and compressors. Our industry milestones include the first highpressure compressors for ammonia and urea plants, the most powerful compressors for offshore applications over 30,000 hp and reinjection compressors with delivery pressures as high as 10,000 psi 700 bar. All compressor and turbine blades in the turbine are removable in the field as well. The genx is delivering up to 15 percent better specific fuel consumption than the engine it replaces, helping operators save whenever they fly. The goal is to reach as complete a combustion of fuel 97% or higher as possible without any fuel going out in.
The design of the ge10 has been highly refined based on the extensive experience gained operating in all types of environments. The gtdc compressor upgrade was specifically designed for the gtd original turbine to increase the performance and as well to improve the surge margin under severe ambient conditions particularly beneficial for plants in hot countries. Gt24 and gt26 gas turbines clean, high performance, flexible. Maintenance procedures and tools are also developed to reduce combustion inspection, hot gas path and major inspection durations.
The engines spool is supported by bearings, which are seated in suitable bearing housings. The turbine section of the gas turbine engine has the task of producing usable output shaft power to drive the propeller. Pdf industrial gas turbine online compressor washing for. The ge 10 is a 12 mw range heavyduty gas turbine available in both singleshaft and twoshaft versions. A ge field service representative fsr performed maintenance tasks in accordance with the ge technical manual. A gas turbine, also called a combustion turbine, is a type of continuous and internal combustion engine. The ms5001 is the singleshaft model in the frame 5 series. Turbomachinery services baker hughes, a ge company. Lm2500, tm2500, lm5000 lm6000, and lms100 gas turbine. He has developed several aerothermal and transient analysis techniques for the condition monitoring of gas turbines. Some of the work developed by the turbine is used to drive the compressor, and the remainder is available for useful work at the output flange of the gas turbine. Customized solutions, matched with the driven compressor, and a modular design philosophy ensure optimum efficiency without compromising reliability and availability.
However, frictional losses and mechanical system inefficiencies do not. The low pressure compressor is from the 6fa industrial gas turbine. A second, highly successful principle of ges product line has been geometric scaling of both compressors and turbines. Benefits of gore turbine filters reduce turbine wear prevent blocking of cooling ports and overheating of blades prevent rotational imbalance from compressor fouling avoid cyclical thermal stress due to turbine stops and restarts for cleaning optimize power output eliminate power loss from compressor fouling. Ges rich power generation history includes more than 60 years of supplying gas turbine technology. The power and efficiency characteristics of a gas turbine are. Sep 07, 2018 ger4196 1 new units technologycomponents abstract ges advances in gas turbine technology are beingapplied to its operating fleet of ms5001 turbines inthe form of uprate and upgrade offerings. Removing complex auxiliaries such as the lube oil system and dry gas seal panel reduces maintenance downtime, simplifies the noise enclosure design, and reduces the amount of noise. Compressor blading materials for land based gas tur bines special steels until recently, all production blades for compressors are made from 12% chromium. Atmospheric air is compressed by the compressor then heated inside the combustion chamber and finally expanded inside the turbine. The five rows of turbine blades are anchored in fir tree slots.
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