Steam turbine definition and meaning collins english dictionary. Using matlabsimulink software facilities, have been simulated the speed variations, of the steam turbine load unit, connected with a mechanicalhydraulic system, than the speed deviations of the. It has almost completely replaced the reciprocating piston steam engine primarily because of its greater thermal efficiency and higher powertoweight ratio. Modern steam turbines use labyrinth glands to restrict steam and air leakage. Model the dynamics of speed governing system, steam turbine. Heavyduty gas turbine operating and maintenance considerations repairs, and downtime. Using the steam property calculator, properties are determined using inlet pressure and the selected second parameter temperature, specific enthalpy, specific entropy, or quality. Overview of woodward governor 505 instrumentation tools. The steam turbine is a form of heat engine that derives much of its improvement in thermodynamic efficiency from the use of multiple. The primary focus on graphicsanimations in the steam. With a gas turbine the quantity of fuel fed is closedloop controlled e.
Ed nelson is a tu rbo machinery consultant based in dickinson, texas. Steam turbine, free steam turbine software downloads. A steam turbine consists of a rotor resting on bearings and enclosed in a cylindrical casing. A steam turbine is a mechanical device that extracts thermal energy from pressurized steam and transforms it into mechanical work. Jan 01, 2017 steam turbine control valve, governing and lube oil system subodh kumar tikadar general industrial steam turbine prefers a steam source of 42 kgcm2 600 psi at 482 oc 900 o f. Woodward 505 digital governor for steam turbines with single or splitrange. A way set to desire the speed the driver set the desired speed mentally. A steam turbine is a device that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Loss of inlet steam pressure to turbine is one of the cause of governor hunting in reaction or impulse turbine.
Steam turbine governing steam turbine governing is the procedure of controlling the flow rate of steam into a steam turbine so as to maintain its speed of rotation as constant. The required data are the inlet steam pressure and temperature, and the exhaust pressure. The specific enthalpy is then multiplied by the mass flow to get the energy flow. Industrial hydraulic circuit training with animation. The speed governing system consists of a proportional regulator, a speed relay, and a servomotor controlling the gate opening. Steam turbine 1 content chapter description page i purpose 2 ii steam turbine types 2 2. Steam turbine training governing system training course. Mar 31, 2017 steam turbines lie at the heart of these power plants. Steam turbine control valve, governing and lube oil system. Steam turbine governing is the procedure of controlling the flow rate of steam to a steam turbine so as to maintain its speed of rotation as constant. Turbine steamconsumption calculator katmar software. The training course on industrial hydraulics has been developed to understand the basic hydraulic working principle and the various components used in a hydraulic circuit. Prior to supplying steam to the turbine, the steam supply pipelines have to be drained and heated up.
Steam turbine training course with governor system and animation. Because the turbine generates rotary motion, it is particularly suited to driving electrical generators about 90% of all electricity generation in the united states 1996 is by use of steam turbines 1 wiser. Turbine speed governing system plz use speakers duration. In backpressure turbine variation in outlet pressure of steam. How steam turbine protection system works turbomachinery. Steam turbine governing and its mechanism ece tutorials. Reaction turbine 2 iii steam turbine operating range 2 3. Hydraulic control systems in gas and steam turbines. Understanding and preventing steam turbine overspeeds by. Pdf simulation of speed steam turbine control system. Lec23 dynamic modeling of steam turbines and governors. A multivalve, multistage turbine protection system incorporates a mechanical. In a practical situation the load frequently varies from the designed or economic.
In case of turbines with cooling water preheating and lowpressure lp bypass, prior to supplying steam the regeneration and dumping systems have to be. Steam turbine training course at that also covers the governing system. Steam turbine training and governing system training youtube. He retired fro m amoco oil company, after more than 36 years in.
Steam turbine disassembly animation addeddate 201008. The leakage of steam or air could occur where the shaft is extended through the turbine endwalls to atmosphere. They convert thermal energy in the steam to mechanical energy. A power loss is associated with steam leakage or air ingress.
This free program will calculate the steam consumption for a turbine of known power and efficiency. The variation in load during the operation of a steam turbine can have a significant impact on its performance. Nozzle governing of steam turbine with inner architecture for example if the turbine consists of 10 nozzles for full power100 %. Directx, games for windows live redist, vc redist, rapture3d, nvidia physx redist, etc. Turbine control systems that are fieldproven for both newbuild installations and retrofits to all the major oem steam turbine types. A free powerpoint ppt presentation displayed as a flash slide show on id. Turbine governing system an overview linkedin slideshare. The steam turbine training program provides detailed knowledge on steam. Standard dynamic turbinegovernor systems in neplan power system. The steam turbine and governing system training governor training course covers the various turbine types. Generally for utility steam turbines following two.
The cbt also covers steam turbines and the governing system in detail and includes. Jun, 20 the function of the steam turbine protection system is often confused with the control system, but in fact the two systems are entirely separate. Video using steam turbine training and governing system training software. Ppt turbine governing system powerpoint presentation. Jun 16, 2014 turbine governing system an overview 1. The best companion of steam users the good old time. Steam turbine software free download steam turbine. Steam turbines lie at the heart of these power plants. The primary focus on graphicsanimations in the steam turbine training. Thus, the design of glands and seals is optimized to reduce any leakage. The rotor is turned by steam impinging against attached vanes or blades on which it exerts a force in the tangential direction.
The owners operating mode and practices will determine how each factor is weighted. Approval issue module 2347 the turbine governing system. The primary factors that affect the maintenance planning process are shown in figure 1. The course, designed with extensive graphics and hydraulic animation, gives a very clear and detailed knowledge on the subject. If the load demand has reduced to 60 % then out of 10 nozzles, 4 nozzles can be closed to provide 60% load with out delay. Different types of turbine protective devices this article provides the list of different types of turbine protective devices like turbine over speed trip, low lube oil pressure, axial displacement, turbine temperature and turbine vibrations. Our steam turbines serve a vast range of industries ranging from food and sugar to biomass and textiles and beyond. Animated video mechanical engineering channel anuniverse 22 has started to stand on the shoulders of engineering giants and now, it is a place to hang out t. When you installed a video game from a cd or a dvd, you installed some redistributable packages too. System, which focuses on multimedia inputs like graphics, animation and. Ppt gas turbine powerpoint presentation free to download. Governing system can, therefore be preliminary defined as the system designed to achieve functional requirement of turbogenerator operation by controlling and regulating steam turbine input parameters viz. Its modern manifestation was invented by charles parsons in 1884.
It provides a very detailed learning using graphics and animation in explaining a turbine classification of the different impulse and impulsereaction types. Understanding and preventing steam turbine overspeeds by william e. The protection system operates only when any of the control system set point parameters are exceeded, and the steam turbine will be damaged if it continues to operate. Jun 09, 2011 the steam turbine training program provides detailed knowledge on steam turbine assembly and dismantling.
Animated cutsections give a deep insight into steam turbine operation and how they work. This video will explain the inner workings of the steam turbines and why they. The cbt also covers steam turbines and the governing system in detail and includes woodwardtype governor operation. A steam turbine is a mechanical device that extracts thermal energy from pressurized steam, and converts it into rotary motion. Using matlabsimulink software facilities, have been simulated the speed variations, of the steam turbineload unit, connected with a mechanicalhydraulic system, than the speed deviations of the steam turbineload unit, to different load deviations, proportional and proportionalintegrative control algorithms. The steam turbine and governor block implements a complete tandemcompound steam prime mover, including a speed governing system, a fourstage steam turbine, and a shaft with up to four masses.
Thus a steam turbine could be viewed as a complex series of windmilllike arrangements, all assembled on the same shaft. Steam turbines where steam is supplied from a large boiler drum or a large header. Nelson turbomachinery consultant dickinson, texas and perryc. The modern digital turbine control system tcs is designed to control the main steam flow to the steam turbine in all operational conditions by means of the turbine throttle, governor, admission. Steamplant process design software allows you to perform spreadsheet analysis of steam power plant equipment, entire steam power plants, and many other aqueous. Steam turbine governors cpc current to pressure converter.
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