Bai tc in gas turbines content development of gas turbine types of gas turbines. Engineering advancements pioneered the development of gas turbines in the early 1900s, and turbines began to be used for stationary electric power generation in the late 1930s. A stream of fluid entering in a machine such as a hydraulic or steam turbine, a pump or fan has more or less a defined direction. Compilation of lecture notes on steam turbines for engineering students.
With our proven training solutions we have serviced corporations in. Pdf power plant lecture notes chapter2 steam power. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. For impulse turbine the blade height at a particular section of a turbine will be function of mass flow rate m, specific volume v, area a, and velocity of steam. Rocket turbine design emphasizes power density, because of the overriding concern for mass saving. A turbine stage normally consists of a row of stationary blading and a. Turbine is a general term for any device that extracts mechanical energy from a fluid generally converting it to rotating energy of a turbine wheel. Approval issue course 234 turbine add auxiliaries module one turbine steam pressure profile at partial loads, steam flow to the turbine is throttled by the governor valves. Our steam turbines equip 41% of the worlds combinedcycle plants, 30% of fossil power plants, and 50% of the worlds nuclear power plants. We deliver best in class training content for the entire workforce within operations and maintenance. Impulse and reaction principles, compounding, velocity diagrams for simple and multistage turbines, speed regulationsgovernors and nozzle governors. Steam turbine lecture notes, mechanical engineering.
It steam power plant decreases the moisture content of the steam at the turbine exit as can be seen in ts diagram as shown in figure 2. Lecture series on applied thermodynamics for marine systems by prof. Over the last 100 years, ge has manufactured and installed a worldwide fleet of steam turbines. Newtons third law of motion states that to every action there is an equal and opposite reaction. Lecture 12 steam turbine impulse lecture reaction turbine compounding lecture 14 comparison of different staging arrangement lecture 15 basics laws of fluid mechanics lecture 16. Despite efforts to develop alternative energy converters, electricity from steam will continue, for many years, to provide the power that energizes the united states and world economies. So that introduced us to that tool at the same time. Unit iii unit iii steam nozzles and turbines flow of steam through nozzles, shapes of nozzles, effect of friction, critical pressure ratio,supersaturated flow. It is a closed metallic vessel contains partly water. Lecture 2 steam turbine free download as powerpoint presentation. Nptel video lecture topic list created by linuxpert. Lec12 steam turbine impulse lecture series on applied thermodynamics for marine systems by prof. Because the turbine generates rotary motion, it is particularly suited to be used to drive an electrical generator about 80% of all electricity generation in the world is by use of steam turbines.
Power cycles otto cycle spark ignition diesel cycle brayton cycle gas turbine rankinecycle. Good morning, i welcome you all for the last topic of the course on fluid dynamics and turbo machines, that is steam and. Now what i want you to do is sketch for me what this process looks like as the steam enters the turbine at state 1. We did this by looking up the information we needed in the steam tables. Are you a person willing to work in industrial sectors then logon to steam turbine is a device that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. A force is always required to act upon the fluid to change its velocity either in direction or in magnitude. Pdf power plant lecture notes chapter4 steam turbine. Introduction to steam turbine mahendra prabhu subrmani rotating equipment engineer 2. The basic element in a turbine is a wheel or rotor with addles, propellers, blades, or buckets arranged on its circumference in. Lec11 basic concept of turbine, velocity diagram youtube. Maintenance and overhaul of steam turbines wgp42 05.
Hello i welcome you all in this course on steam and gas power systems. The steam turbine includes a separate 12stage highpressure section and a combined 8stage intermediate pressure and 5stage lowpressure turbines. Lec12 steam turbineimpulse tutorial of applied thermodynamics for marine systems course by prof p. Applied thermodynamics videos, lectures, classes, courses, books, tutorials nptel thermodynamics videos, thermodynamics video lectures, thermodynamics video classes. Fundamentals of fluid mechanics chapter 12 pumps and turbines jyhcherng shieh department of bioindustrial mechatronics engineering national taiwan university. Impulse turbines, reaction turbines, the impulse principle, the. The motive power in a steam turbine is obtained by the rate of change in momentum of a high velocity jet of steam impinging on a curved blade which is free to. Lecture 33 turbine definition, types of turbines, comparison of gas turbine with reciprocating ic engine and steam turbine, classification of gas turbine 34 lecture 34 thermodynamic cycle or brayton cycle, problem solving. In an extracting type turbine, steam is released from variousin an extracting type turbine, steam is released from various stages of the turbine, and used for industrial process needs or sentstages of the turbine, and used for industrial process needs or sent to boiler feed water heater to.
Power plant engineering notes pdf ppe notes pdf notes. Bai tc in gas turbines gas turbine for modern aviation. By heating water above the atmospheric pressure, steam could be generated at. So now we will see what happens in steam and gas turbines. Good morning, i welcome you all for the last topic of the course on fluid dynamics and turbo machines, that is steam and gas turbines. The temperature to which steam can be superheated is limited by metallurgical consideration. Take the steam turbine training and be able to state the purpose of steam turbine, describe major components and explain the theory of operation. This document is highly rated by mechanical engineering students and has been viewed 866 times. Nptel video lecture topic list created by linuxpert systems, chennai.
Hello i welcome you all in this course on steam and gas power systems today we will solve the problems on. Nptel mechanical engineering videos video lectures, classes, courses, video clips, tutorials and video downloads from iits, mit, standford and other top educational institutions. In the last discussion lecture we talked about compressible flows. Mechanical engineering video lectures from nptel, iit, mit. Superheating the steam to higher temperatures has very desirable effect. Power plant lecture notes chapter2 steam power plant cycles. The steam turbine is a form of heat engine that derives much of its improvement in thermodynamic efficiency through the use of multiple stages in the. Calculate the carnot and rankine efficiencies of the cycle. In a steam power cycle, the steam supply is at 15 bar and dry and saturated.
Hello i welcome you all in this course on steam and gas power systems and today we will. Steam boilers applications classification steam boilers a boiler is a steam generating unit. The ge a10 steam turbine is a threestage unit typically used in 1 by 1 combinedcycle plant arrangements. Turbines revolutionized airplane propulsion in the 1940s, and in the 1990s through today have been a popular choice for new power generation plants in the united states. Then steam turbine, its type, efficiency and arrangements are focused. So now we will see what happens in steam and gas turbines, what are the. Power plant engineering notes pdf ppe notes pdf book starts with the topics introduction, boiler, classification of boilers, fire tube boiler, water tube boilers, introduction, classification of a steam turbine, simple impulse turbines. Turbine is a rotary engine that converts the energy of a moving stream of water, steam, or gas into mechanical energy.
Nptel provides elearning through online web and video courses various streams. A typical turbine governing system has two unloaders one activated by low condenservacuum. Apr 03, 2020 steam turbine lecture notes, mechanical engineering, semester mechanical engineering notes edurev is made by best teachers of mechanical engineering. Isaac newtons steam wagon, 1687 johan barber made first patent, 1791. Approximately 60% of the heat energy removed from the fuel is rejected to the condenser cooling water. For liquids, we usually call them hydraulic turbines or hydroturbines. Efficiency, while clearly a consideration, takes a less prominent role than in aircraft turbine design. Lec12 steam turbineimpulse video lecture by prof p. Lecture series on steam and gas power systems by prof.
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