An introduction to steam boilers and turbines for power plants course no. Power plant engineering power plant engineering engineering. 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. Aug 03, 20 basic mechanical engineering steam turbines 1. 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. Thus, the axialflow turbine used in gas turbines is an outgrowth of steam turbine technology. For water, at pressures below atmospheric, a melting point rises slightly and boiling point drops markedly. From the boiler the superheated steam will go to the turbine. Steam exhaust from high pressure turbine is reheated in. Therefore, even at 200 psia, when water turns into steam, its volume increases by about 14 times. Nptel video course ocean engineering advanced marine structures subject coordinator dr.
Lec11 basic concept of turbine, velocity diagram youtube. Maintenance and overhaul of steam turbines wgp42 05. 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. Steam boilers, engines, nozzle, turbines mechanical mcqs pdf. Pdf power plant lecture notes chapter2 steam power. Mechanical engineeringsteam boilers, engines, nozzles and. Mechanical engineering video lectures from nptel, iit, mit. Then steam turbine, its type, efficiency and arrangements are. You can see that if you can use the cold seawater as the lowest temperature, say 60 f, the. In this article, we will discuss steam turbine basic parts. Inevitably the steam begins to do this as soon as it leaves the boiler. Normally the high pressure and intermediate pressure stages of a steam turbine. Mechanical engineering video lectures tutorials lec12 steam turbine.
The casing shape and construction details depend on whether it is a high pressure hp or low pressure lp casings. 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. Thermodynamics enthalpy entropy mollier and steam tables i. Steam and gas turbines and power plant engineering, 7th edition. About 2000 years ago, the first steam turbine was made by hero of alexandria which worked on pure reaction. For low and moderate inlet steam pressure up to 120 bar, a single shell. Understanding and preventing steam turbine overspeeds by william e.
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. Jun 12, 2017 mechanical engineeringsteam boilers, engines, nozzles and turbines important mcq pdf. A great collection for mechanical engineers,technologist and design engineers. Ger3706d steam turbines for industrial applications. In recent years, the trend in high turbine inlet temperatures in gas turbines has required various cooling schemes. Nelson turbomachinery consultant dickinson, texas and. The carnot cycle is not a suitable model for vapor power cycle because it steam. Combining engineering expertise, rugged designs, and precision manufacturing, elliott steam turbines.
May 19, 2015 mar 24, 2020 steam turbine notes, mechanical engineering, semester notes edurev is made by best teachers of. For nearly a century, elliott steam turbines have earned a reputation as the most rugged, reliable, and versatile drivers in the industry. While the functions are the same for all steam turbines, the designs are sufficiently. Bookmark file pdf power plant engineering notes power plant engineering notes lec 01 introduction to power plant engineering power plant engineering by dr. Since the turbines are adequately insulated the surface heat loss by convection and radiation is small. Lec12 steam turbineimpulse tutorial of applied thermodynamics for marine systems.
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Generally recommended best mechanical engineering reference books pdf collection. A turbine is a rotating part which converts kinetic energy of a working fluid into useful mechanical energy andor electrical energy. The steam turbines are widely used in power generation, refineries and petrochemical industries. 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. 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. 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. Power plant engineering notes pdf ppe notes pdf notes.
Srinivasan chandrasekaran coordinating institute iit madras. In practical saturated or superheated steam systems, internal energy, u, specific enthalpy, h, and specific volume. Steam turbine convert a part of the energy of the steam evidenced by high temperature and pressure into mechanical powerin turn electrical power. It consists of a rotor and a set of rotating blades which are attached to a shaft. Mechanical engineering online mock test for mechanical engineering steam nozzles and turbines topic. International association of engineering insurers 38th annual conference. Mechanical engineering steam nozzles and turbines online test. Pdf power plant lecture notes chapter4 steam turbine. The lowstress way to find your next steam turbine engineer job opportunity is on simplyhired. As steam loses heat, it turns back into water condensate.
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. Vtu provides elearning through online web and video courses various streams. 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. Steam boilers engines nozzles and turbines mechanical. Power plant lecture notes chapter2 steam power plant cycles. Quest global engineering 11 medxcel 9 mitsubishi hitachi power systems americas, inc. Lec12 steam turbineimpulse video lecture by prof p. Moharana, department of mechanical engineering, national institute of technology rourkela, rourkela. Apr 06, 2010 lecture series on applied thermodynamics for marine systems by prof. This document is highly rated by students and has been viewed 568 times.
In its simplest form, a steam turbine consist of a boiler steam generator, turbine, condenser, feed pump and a variety of auxiliary devices. 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. Herewith we have shared the steam boilers, engines, nozzle, turbines mechanical mcqs pdf mechanical engineering multiple choice questions and answers pdf. If the substance flowing through it is steam, it is called a steam turbine. Thus this course would provide an understanding on electricity generation or transportation. Applied thermodynamics videos, lectures, classes, courses, books, tutorials nptel. 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. Steam boilers, engines, nozzles and turbines questions answers.
Impulse and reaction principles, compounding, velocity diagrams for. Steam turbine mechanical field service engineer jobs. 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. Power plant engineering objectives after studying this unit, you should be able to know steam generator, steam turbine, and. Two types of modern steam turbines and their mechanical. Department of mechanical and industrial engineering. Lecture 11 basic concept of turbine, velocity diagram lecture 12 steam turbine impulse lecture reaction turbine. Worldclass steam turbine engineering services sts, inc. The two main standards for steam turbines are api 611general purpose steam turbines, and api 612specialpurpose steam turbines. Lec 01 introduction to power plant engineering youtube. Complete steam turbine compressor packages as well as separate mechanical drive steam turbines. There are over 191 steam turbine engineer careers waiting for you to apply.
Apply to service engineer, senior contract specialist, mechanical associate and more. Steam turbine mechanical engineering and technology. In its simplest form, a steam turbine consist of a boiler steam generator, turbine. Steam turbine notes, mechanical engineering, semester notes. 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 and gas turbines and power plant engineering, 7th edition book. Then steam turbine, its type, efficiency and arrangements are focused. 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. When steam from the distribution system enters the steam using equipment the steam will again give up energy by. In the last discussion lecture we talked about compressible flows.
Pdf power plant lecture notes chapter3 steam generator. Nptel provides elearning through online web and video courses various streams. Combustionfossil power systems, by combustion engineering, inc, 1981. The terms saturated steam and superheated steam are defined in depth later in this text. A steam turbine is a mechanical device that extracts thermal energy from pressurized steam and transforms it into mechanical work. Topics discussed include steam generators boilers, stokers, pulverizers, soot blowers, economizers, steam turbines, condensing cycles, plant arrangement, and cogeneration. The mechanical engineering full online mock test paper is free for all students and very helpful for exam preparation.
There are some energy losses in the bearings and governing mechanisms which can be reduced by improving the lubrication system. Thus this course would provide an understanding on electricity generation or transportation application using steam as working medium. New steam turbine engineer careers are added daily on. 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. This online engineering pdh course provides an introduction to steam boilers and turbines for electric power generating plants. Types of steam turbines chemical engineering world. Interface with mhps steam turbine and mechanical system engineers to obtain a. Lecture series on applied thermodynamics for marine systems by prof. Mechanical engineering question and answers in english. Undergraduate students of mechanical engineering industry personnel.
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. There is no piston rod,flywheel or slide valves attached to the turbine. Axialflow turbines are now designed with a high work factor to obtain lower fuel consumption and reduce the noise from the turbine. Variable from little to massive, the turbines are created in a very big range of power capacities. 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. The steam turbine is one kind of heat engine machine in which steam s heat energy is converted to mechanical work.
Steve, assistant professor, amal jyothi college of engineering, kanjirapally. Lec12 steam turbine impulse lecture series on applied thermodynamics for marine systems by prof. Steam turbine basic parts mechanical engineering site. 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. Steam contains more energy as it has both sensible heat and latent heat continued. Moharana, department of mechanical engineering, national institute of technology. Mar 14, 2019 mechanical engineering steam nozzles and turbines online test. Mechanical engineering 155 courses linuxpert systems. 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. 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. Pdf power plant lecture notes chapter2 steam power plant. This page provides more than 0 valuable mechanical engineering mcqs pdf topic wise. A new task have been assigned to me from the department of mechanical engineering after the approval of. Jan 17, 2017 lecture series on steam and gas power systems by prof.
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