Impulse and reaction turbine are two main classifications of the steam turbines. Efficiency will depend on turbine size or rotor diameter, blade geometries, speed, extreme condition of steam and other losses. Applied thermodynamics for marine systems free video lectures. For example, a steam turbine extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating shaft. Lec12 steam turbine impulse lecture series on applied thermodynamics for marine systems by prof. Lec12 steam turbineimpulse lecture series on applied thermodynamics for. Nptel video lecture topic list created by linuxpert systems, chennai. Basics of gas turbine operation the simplest arrangement of the gas turbine consists of a compressor, combustor and turbine directly connected to the generator as shown in figure. Prior to supplying steam to the turbine, the steam supply pipelines have to be drained and heated up. Initially, types of steam generators and their parts highlighted. Parsons main thrust for the steam turbine was for generating electrical power, but he also had his eyes on applying the steam turbine to drive ships of all kinds.
Lecture 11 basic concept of turbine, velocity diagram lecture 12 steam turbineimpulse lecture reaction turbine compounding lecture 14 comparison of different staging arrangement lecture 15. Then each component of the plant is discussed detail. More than 120,000 steam turbines delivered worldwide prove that we are a reliable and experienced partner. This video introduces the operation of noncondensing, singlestage steam turbines in industrial facilities. The project on development of remaining three quadrants to nptel phasei under grant in aid nmeict, mhrd, new delhi. Unit iii steam nozzles and turbines flow of steam through nozzles, shapes of nozzles, effect of friction, critical pressure ratio,supersaturated flow. Lecture series on steam and gas power systems by prof. A condenser installed at the exhaust or low pressure end of the turbine receives and condenses the steam prior to it being pumped back to the boiler. Principles of operation of a steam turbinewhen high temperature steam passes through a steam turbine. A steam turbine uses thermal energy from pressurised steam to do mechanical work.
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. Rocket turbine design emphasizes power density, because of the overriding concern for mass saving. Applied thermodynamics for marine systems online course. Nptel mechanical engineering videos video lectures, classes, courses, video clips, tutorials and video downloads from iits, mit, standford and other top educational institutions. Steam turbine gets heat energy in the form of superheated steam from steam generator. Steam turbines are one of the most versatile and oldest prime mover technologies still in general production used to drive a generator or mechanical machinery. Lecture 6 property of pure substance, steam table lecture 7 ideal gas laws, different processes lecture 8 introduction to vapour power cycle lecture 9 vapour power cycle lecture 10 steam power cycle, steam nozzle lecture 11 basic concept of turbine, velocity diagram lecture 12 steam turbine impulse lecture reaction turbine. The latest design and manufacturing details in mechanical drive steam turbines steam turbines shows how to select, improve, operate, and maintain highquality mechanical drive steam turbineswith maximum efficiency and minimum downtime.
Applied thermodynamics for marine systems nptel video lectures. In case of turbines with cooling water preheating and lowpressure lp bypass, prior to supplying steam the regeneration and dumping systems have to be. In noncondensing turbines or backpressure turbines, steam exhausts at a pressure greater than. Steam process in steam turbine steam entrance to turbine through governor valv e to control steam capacity and therefore to control turbine speed. It explains what a steam turbine does and describes how steam turbines are used in industrial applications. A steam turbine is a mechanical device that extracts thermal energy from pressurized steam and transforms it into mechanical work. This article focuses on marine steam turbines and their applications. Lecture series on applied thermodynamics for marine systems by prof. 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. Impulse and reaction principles, compounding, velocity diagrams for simple and multistage turbines, speed regulationsgovernors and nozzle governors. Mechanical engineering videos, nptel video classes, iit video lectures. Basics of gas turbine operation the simplest arrangement of the gas turbine consists of a compressor, combustor and turbine directly connected to the generator. Steam power plant cycles simple vapor cycle and its components.
Boiler, turbine, condenser, pump, carnot cycle for steam, disadvantages of carnot cycle application, rankine cycle and. The efficiency of this type of heat engine is directly related to the efficiency of the expansion of the steam. We work to assess and address specific application needs so we can specify and develop a turbine system package that meets and exceeds goals. Take the steam turbine training and be able to state the purpose of steam turbine, describe major components and explain the theory of operation. Applied thermodynamics videos, lectures, classes, courses, books, tutorials nptel thermodynamics videos, thermodynamics video lectures, thermodynamics video classes. Nptel provides elearning through online web and video courses various streams. A steam turbine is a mechanical device that extracts thermal energy from pressurized steam, and converts it into rotary motion. The leaving velocity and exhaust loss from a steam turbine may be likened to the tailrace loss of a water wheel.
Apr 06, 2010 lecture series on applied thermodynamics for marine systems by prof. Lathrop trotter is the source for gas and steam turbines, turbine generator sets, and combined heat and power solutions. There are two classical types of turbine stage designs. 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. One part of the course is about simple steam power cycle, reheat, regeneration and superheating.
See more ideas about steam turbine, abandoned factory and industrial photography. Nptel video lectures, iit video lectures online, nptel youtube lectures. Latest technologies and future prospects for a new steam turbine. Feb 19, 2017 lecture series on steam and gas power systems by prof.
With over a century of experience and continuous development in our steam turbine technology, siemens is a prime partner for your business. One part of the course is about simple steam power cycle, reheat, regeneration and. Lec10 steam power cycle, steam nozzle lecture series on applied thermodynamics for marine systems by prof. Steam turbine was invented in 1884 by sir charles algernon parsons. Turbine is a rotary engine that converts the energy of a moving stream of water, steam, or gas into mechanical energy. Nevertheless modern steam turbines are very efficient and operate with internal efficiencies within the range of 80 percent to 90 percent depending upon the steam conditions. Efficiency, while clearly a consideration, takes a less prominent role than in aircraft turbine design. This new second edition offers authoritative information on the operating characteristics, design features, reliability, and maintenance of all steam. If the tailrace runs downhill, there is a corresponding loss of headthe wheel setting should have been lower. Our steam turbines work as generator drives or as mechanical. Steam turbine fundamentals seminar 4 12 days this course is ideal for plant operations, maintenance, and engineering personnel interested in gaining broad understanding of turbinegenerator design, operation, troubleshooting and maintenance.
Design, application and rerating explains to readers how steam turbines should be selected, operated, maintained and improved. Further actual cycle with component efficiencies would also be discussed. Aug 19, 20 a condenser installed at the exhaust or low pressure end of the turbine receives and condenses the steam prior to it being pumped back to the boiler. Steam turbines are made in a variety of sizes ranging fromsteam turbines are made in a variety of sizes ranging from small technology characterization steam turbines. Steam turbine lecture notes, mechanical engineering, semester. In the second part of this series, the author talked about the story of the first little toy turbine. Mechanical engineering video lectures from nptel, iit, mit.
Click here to visit our frequently asked questions about html5 video. The generator connected to the shaft takes the mechanical energy produced by the turbine and converts it to electrical energy through the use of electromagnetic induction. It has almost completely replaced the reciprocating piston steam engine primarily because of its greater thermal efficiency and higher powertoweight ratio. Steam consumption of steam turbine is depending to required output power and efficiency of the turbine. Pdf power plant lecture notes chapter6 gas turbines. Turbines in ohio, kentucky and indiana lathrop trotter. Dec 18, 2015 steam turbines are made in a variety of sizes ranging fromsteam turbines are made in a variety of sizes ranging from small technology characterization steam turbines. Impulse turbines, reaction turbines, the impulse principle, the. Oct 22, 2008 a complete sourcebook, steam turbines delivers the expertise required to capitalize on the latest steam turbine and intermediate transmission unit innovationsand improve a plants efficiency, availability, and profitability. Lec12 steam turbineimpulse video lecture by prof p. Latest technologies and future prospects for a new steam. Lecture 33 turbine definition, types of turbines, comparison of gas turbine with reciprocating ic engine and steam turbine, classification of gas turbine 34 lecture34 thermodynamic cycle or brayton cycle, problem solving 35 lecture 35 regenerative gas turbine cycle, reheat gas turbine cycle, problem solving.
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