In recent years, the trend in high turbine inlet temperatures in gas turbines has required various cooling schemes. Maintenance and overhaul of steam turbines wgp42 05. 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. Steam exhaust from high pressure turbine is reheated in. Mechanical engineering steam nozzles and turbines online test. The first steam turbine used for power generation was invented in 1884. Steam turbine mechanical field service engineer jobs. International association of engineering insurers 38th annual conference.
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. Topics discussed include steam generators boilers, stokers, pulverizers, soot blowers, economizers, steam turbines, condensing cycles, plant arrangement, and cogeneration. Steve, assistant professor, amal jyothi college of engineering, kanjirapally. Thus this course would provide an understanding on electricity generation or transportation. Lec12 steam turbineimpulse video lecture by prof p. Interface with mhps steam turbine and mechanical system engineers to obtain a. In practical saturated or superheated steam systems, internal energy, u, specific enthalpy, h, and specific volume. Quest global engineering 11 medxcel 9 mitsubishi hitachi power systems americas, inc. From the boiler the superheated steam will go to the turbine. While the functions are the same for all steam turbines, the designs are sufficiently. Normally the high pressure and intermediate pressure stages of a steam turbine. The mechanical engineering full online mock test paper is free for all students and very helpful for exam preparation. A steam turbine is a mechanical device that extracts thermal energy from pressurized steam and transforms it into mechanical work. Variable from little to massive, the turbines are created in a very big range of power capacities.
About 2000 years ago, the first steam turbine was made by hero of alexandria which worked on pure reaction. Jun 12, 2017 mechanical engineeringsteam boilers, engines, nozzles and turbines important mcq pdf. Two types of modern steam turbines and their mechanical. Power plant lecture notes chapter2 steam power plant cycles. Mar 14, 2019 mechanical engineering steam nozzles and turbines online test. Then steam turbine, its type, efficiency and arrangements are focused. For nearly a century, elliott steam turbines have earned a reputation as the most rugged, reliable, and versatile drivers in the industry. In this article, we will discuss steam turbine basic parts. Combining engineering expertise, rugged designs, and precision manufacturing, elliott steam turbines. Engineering thermodynamics, fluid mechanics, heat transfer rationale the course is designed to give fundamental knowledge of construction and working of various types of turbines and their components i.
Mechanical engineering 155 courses linuxpert systems. Steam boilers, engines, nozzle, turbines mechanical mcqs pdf. 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. Steam turbine governing is the procedure of monitoring and controlling the flow rate of steam into the turbine with the objective of maintaining its speed of rotation as constant. Pdf power plant lecture notes chapter3 steam generator. Faculty of mechanical engineering smex1009thermal engineering unit iii unit iii steam nozzles and turbines flow of steam through nozzles, shapes of nozzles, effect of friction, critical. This document is highly rated by students and has been viewed 568 times. Steam and gas turbines and power plant engineering, 7th edition book. Steam boilers, engines, nozzles and turbines questions answers. Understanding and preventing steam turbine overspeeds by william e. Applied thermodynamics videos, lectures, classes, courses, books, tutorials nptel.
Lecture series on applied thermodynamics for marine systems by prof. Ger3706d steam turbines for industrial applications. Nptel provides elearning through online web and video courses various streams. Types of steam turbines chemical engineering world. An introduction to mechanical engineering download a handbook of mechanical engineering for ies gate psus download design engineers handbook download dubbel handbook of mechanical engineering download handbook of mechanical. Power plant engineering notes pdf ppe notes pdf notes. As steam loses heat, it turns back into water condensate. The carnot cycle is not a suitable model for vapor power cycle because it steam. Then steam turbine, its type, efficiency and arrangements are. Thus, the axialflow turbine used in gas turbines is an outgrowth of steam turbine technology.
Pdf power plant lecture notes chapter2 steam power plant. Aug 03, 20 basic mechanical engineering steam turbines 1. May 19, 2015 mar 24, 2020 steam turbine notes, mechanical engineering, semester notes edurev is made by best teachers of. Steam turbine notes, mechanical engineering, semester notes. There are some energy losses in the bearings and governing mechanisms which can be reduced by improving the lubrication system. 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. In the last discussion lecture we talked about compressible flows. Mechanical engineering video lectures from nptel, iit, mit.
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Moharana, department of mechanical engineering, national institute of technology rourkela, rourkela. Steam and gas turbines and power plant engineering, 7th edition. Generally recommended best mechanical engineering reference books pdf collection. Steam boilers engines nozzles and turbines mechanical. Mechanical engineering online mock test for mechanical engineering steam nozzles and turbines topic. There are two types of modern steam turbines impulse turbine in this type of turbine the steam nozzles direct superheated steam at the buckets of rotor blades, the impact of this causes the rotor to rotate. If the substance flowing through it is steam, it is called a steam turbine. Lec12 steam turbineimpulse tutorial of applied thermodynamics for marine systems. This page provides more than 0 valuable mechanical engineering mcqs pdf topic wise. Nelson turbomachinery consultant dickinson, texas and. Bookmark file pdf power plant engineering notes power plant engineering notes lec 01 introduction to power plant engineering power plant engineering by dr. Lec 01 introduction to power plant engineering youtube. Apr 06, 2010 lecture series on applied thermodynamics for marine systems by prof. In its simplest form, a steam turbine consist of a boiler steam generator, turbine.
Pdf power plant lecture notes chapter4 steam turbine. A turbine is a rotating part which converts kinetic energy of a working fluid into useful mechanical energy andor electrical energy. Srinivasan chandrasekaran coordinating institute iit madras. Its modern manifestation was invented by charles parsons in 1884 the steam turbine is a form of heat engine that derives much of its improvement in thermodynamic efficiency from the use of multiple stages in the expansion of the steam. The flow rate of steam is monitored and controlled by interposing valves between the boiler and the turbine. Pdf power plant lecture notes chapter2 steam power. It consists of a rotor and a set of rotating blades which are attached to a shaft. For low and moderate inlet steam pressure up to 120 bar, a single shell.
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. Steam turbine mechanical engineering and technology. Faculty of mechanical engineering smex1009thermal engineering unit iii unit iii steam nozzles and turbines flow of steam through nozzles, shapes of nozzles, effect of friction, critical pressure ratio,supersaturated flow. Inevitably the steam begins to do this as soon as it leaves the boiler. The lowstress way to find your next steam turbine engineer job opportunity is on simplyhired. Lec11 basic concept of turbine, velocity diagram youtube. Steam turbine basic parts mechanical engineering site. Axialflow turbines are now designed with a high work factor to obtain lower fuel consumption and reduce the noise from the turbine.
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A new task have been assigned to me from the department of mechanical engineering after the approval of its scientific committee to be a senior tutor of computational fluid dynamics cfd major. Thus this course would provide an understanding on electricity generation or transportation application using steam as working medium. Lec12 steam turbine impulse lecture series on applied thermodynamics for marine systems by prof. Steam turbines steam turbine is a primemover in which pressure energy of steam is transformed into kinetic energy, and later in its turn is transformed into the mechanical energy of rotation of. When steam from the distribution system enters the steam using equipment the steam will again give up energy by. Lecture 11 basic concept of turbine, velocity diagram lecture 12 steam turbine impulse lecture reaction turbine.
The integration of the reverse engineering parts process into the steam turbine. In its simplest form, a steam turbine consist of a boiler steam generator, turbine, condenser, feed pump and a variety of auxiliary devices. Since the turbines are adequately insulated the surface heat loss by convection and radiation is small. When we provide continuous heat to water then at 100 temperature and 1 atm pressure, it boils and changes its phase from liquid to vapour. A new task have been assigned to me from the department of mechanical engineering after the approval of. Nptel mechanical engineering videos video lectures, classes, courses, video clips, tutorials and video downloads from iits, mit, standford and other top educational institutions. A great collection for mechanical engineers,technologist and design engineers. New steam turbine engineer careers are added daily on. Steam turbines steam turbine is a primemover in which pressure energy of steam is transformed into kinetic energy, and later in its turn is transformed into the mechanical. Herewith we have shared the steam boilers, engines, nozzle, turbines mechanical mcqs pdf mechanical engineering multiple choice questions and answers pdf. For water, at pressures below atmospheric, a melting point rises slightly and boiling point drops markedly.
Normally the high pressure and intermediate pressure stages of a steam turbine are of the impulse type. Impulse and reaction principles, compounding, velocity diagrams for. Apply to service engineer, senior contract specialist, mechanical associate and more. Thermodynamics enthalpy entropy mollier and steam tables i. Mechanical engineering question and answers in english. An introduction to steam boilers and turbines for power plants course no.
Moharana, department of mechanical engineering, national institute of technology. There is no piston rod,flywheel or slide valves attached to the turbine. The two main standards for steam turbines are api 611general purpose steam turbines, and api 612specialpurpose steam turbines. Department of mechanical and industrial engineering. Steam contains more energy as it has both sensible heat and latent heat continued. 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 engineering basics 3 when considering the volume of a pound of steam, consider that a pound of water has a volume of only 0. Combustionfossil power systems, by combustion engineering, inc, 1981. The terms saturated steam and superheated steam are defined in depth later in this text. The steam turbines are widely used in power generation, refineries and petrochemical industries.
Nptel video course ocean engineering advanced marine structures subject coordinator dr. The best definition for a turbine one might provide is that the conversion of steam s heat to mechanical work, that is finished on a rotating output shaft. In general, a steam turbine is a rotary heat engine that converts thermal energy contained in the steam to mechanical energy or to electrical energy. Mechanical drive steam turbines mechanical drive steam turbines figure 6 range from 3 to 60 mw 80,000 bhp, with speeds of up to 16,000 rpm, and are either condensing or noncondensing types. There have been numerous causes of steam turbine failures worldwide. Jan 17, 2017 lecture series on steam and gas power systems by prof.1152 766 691 861 176 590 1215 1307 300 953 1060 929 1427 1475 1145 1112 509 1415 236 864 770 343 1388 353 1094 554 1148 1173 524 94 1114 614 448 495 1368 860