Online videos, courses iit video lectures well organized. Gasturbine is used in aircraft propulsion and electric power generation. To illustrate, the ankerlig power station, an opencycle gasturbine plant, has nine units of 150mw each, giving a total of 50mw. The carnot cycle on the pv diagram is as shown in fig.
Lecture 17 gas and vapour power cycles, otto cycle, diesel cycle, dual cycle lecture 18 rankine cycle, brayton cycle, stirling and ericsson cycles lecture 19 thermodynamic property relations, jacobean and legendre transformations, maxwellas equations lecture 20 tutorial lecture 21 properties of gas and vapour mixtures. Property relationships for pure substances and mixtures, thermodynamic relations, ideal gas mixtures, combustion thermodynamics, gas power cycles, vapour power cycles, refrigeration cycles, reciprocating compressors, compressible flows and steam nozzles. Mar 01, 2017 gas power cycle the devices or systems used to produce a net power output are often called engines, and the thermodynamic cycles they operate on are called power cycles. Welcome to applied thermodynamics in marine systems. The course contains the analysis of vapour power cycle i. Som, department of mechanical engineering, iit kharagpur. The rankine cycle is an idealized thermodynamic cycle of a heat engine that converts heat into mechanical work while undergoing phase change. Rankine cycle, steam generators and their accessories, performance of boilers and combuston of fuel, high pressure boilers, fow through steam and gas nozzles. Uyire movie download in kuttymovies applied thermodynamics nptel. Jan 17, 2017 lecture series on steam and gas power systems by prof.
Basic thermodynamics nptel online videos, courses iit. Chp industrial bottoming and topping cycle with energy. Suitable for combined cycles with steam power plant high power to weight ratio, high reliability, long life fast start up time, about 2 min, compared to 4 hr for steampropulsion systems. Lecture 29 vapor power cycle 2 lecture 30 vapor power cycle 3 lecture 31 gas power cycles 1 lecture 32 gas power cycles 2 lecture 33 refrigeration cycles lecture 34 nonreacting mixture and psychrometry lecture 35 gas vapor mixture and air conditioning 1 lecture 36 gas vapor mixture and air conditioning 2. Lecture series on steam and gas power systems by prof. Power cycles otto cycle spark ignition diesel cycle brayton cycle gas turbine rankinecycle. In this case assume a simple cycle without reheat and without with condensing steam turbine running on saturated steam dry steam. The rankine cycle is a model used to predict the performance of steam turbine systems.
Thermodynamic cycles can also be categorized as gas cycles and vapour cycles, depending on the phase of the working fluid. But opencycle gasturbine plants are inefficient, and diesel is an expensive way to produce power. An important application of thermodynamics is the analysis of power cycles through which the energy absorbed as heat can be. Book gas power cycles carnot cycle lecture notes pdf download book gas power cycles carnot cycle lecture notes by shet, sundararajan, mallikarjuna pdf download author shet, sundararajan, mallikarjuna written the book namely gas power cycles carnot cycle lecture notes author shet, sundararajan, mallikarjuna pdf download study material of gas power cycles carnot cycle. It can be used in several different modes in critical industries such as power generation, oil and gas, process plants. Some mathematical theorems, maxwells equations, tds equations, difference in heat capacities. Part 2 power and propulsion cycles mit opencourseware. Some textbooks do not have enough example problems to help students learn how to solve problems.
Sketches of an engine and the corresponding cycle are given in figure a4. In practice, real brayton cycles take one of two forms. A simple gt power plant is shown in the image below. In this section we analyze several gas cycles used in practical applications for propulsion and power generation, using the air standard cycle. One part of the course is on ic engines and it focuses onthe thermodynamic cycles for different fuels suitable for automobiles. Power cycles and heat pumps topping and bottoming cycles. Scribd is the worlds largest social reading and publishing site. Chapter 9 gas power cycles universiti tenaga nasional. But opencycle gas turbine plants are inefficient, and diesel is an expensive way to produce power. Solve problems based on the otto, diesel, stirling, and. Other part of the course hasemphasis on thermodynamic cycle of aircraft engines and the components of the aircraft engine. The difference between closed cycle gas turbine and open cycle gas turbine.
Gas turbine is used in aircraft propulsion and electric power generation. The maximum fluid temperature at the turbine inlet is about 620c for modern steam power plants, but over 1425c for gasturbine power plants. Power cycle thermodynamics pdf our study of gas power cycles will involve the study of those heat engines in. Let assume the rankine cycle, which is the one of most common thermodynamic cycles in thermal power plants.
In air standard cycle a certain mass of air operates in a complete thermodynamic cycle where the heat is added and rejected using external reservoirs, and all the processes in the cycle are reversible. Gas turbine power plants are lighter and compact when compared to power plants running on vapour cycles. As the gas expands, the piston does work on some external device. Nptel video lecture topic list created by linuxpert. The integrated coal gasifider gas cleaning plant gas turbine combined cycle may be the power plant which has the greatest input of chemical engineering concepts and equipment and, at the same time. Steam and gas power systems about the course this course provides a simple understanding of the steam and gas power systems. The most common combined cycle is the gassteam combined cycle where a gas. A binary cycle is composed of two separate cycles, one at high temperatures topping cycle and the other at relatively low temperatures. The power to weight ratios are generally high for high throughout gas turbine power plants and hence are favoured for the aviation and also for power generation. Hence, the working fluid doesnt undergo a thermodynamic cycle. Gas turbine cycles nptel lecture power plant engineeringii. Jan 11, 2017 introduction to gas power cycles video lecture of gas power cycles chapter from thermodynamics subject for mechanical engineering students. Nptel video lectures, iit video lectures online, nptel youtube lectures.
Pdf power plant lecture notes chapter6 gas turbines. In gas cycles, the working fluid remains in the gaseous phase throughout the entire cycle, where as in vapor cycles the working fluid exists in the vapor phase during one part of the cycle and in the liquid phase during another part. Nptel video lecture topic list created by linuxpert systems. Lecture 17 gas and vapour power cycles, otto cycle, diesel cycle, dual cycle lecture 18 rankine cycle, brayton cycle, stirling and ericsson cycles. Lecture 29 vapor power cycle 2 lecture 30 vapor power cycle 3 lecture 31 gas power cycles 1 lecture 32 gas power cycles 2 lecture 33 refrigeration cycles lecture 34 nonreacting mixture and psychrometry lecture 35 gasvapor mixture and air conditioning 1 lecture 36 gasvapor mixture and air conditioning 2. Proprietary and confidential what is an open cycle. On the other hand, if more power is required at the site, it is possible to adopt a combined cycle that is a combination of gas turbine and steam turbine cogeneration. Jun 08, 2016 the difference between closed cycle gas turbine and open cycle gas turbine can be done on the basis of source of heating, types of working fluid, circulation of air, wearing capacity of turbine blades, installation, maintenance cost and much more. An account is given on the thermodynamics of power cycles where steam or water are mixed with air to improve the performance of stationary gas turbine cycles. It is the ratio of indicated power to the shaft power.
Introduction to gas power cycles video lecture of gas power cycles chapter from thermodynamics subject for mechanical engineering students. It is a peaking power plant, meaning it is operational for only 6% of the year, and uses diesel to produce power. In a gas power cycle, the source of heat supply and the sink for heat rejection are considered to be external to the working fluid. Difference between closed cycle gas turbine and open cycle. Cogeneration a staturory body under ministry of power. Carnot cycle the carnot gas cycle could be achieved in a cylinder piston apparatus a reciprocating engine as shown in fig. The air undergoes a thermodynamic cycle even though the working fluid in. Applied thermodynamics for marine systems online course. Applied thermodynamics for marine systems online course video.
Vapor power cycle gasturbine cycles typically operate at considerably higher temperatures than steam cycles. Now, the word thermodynamics is composed of two greek words. Nptel video lecture topic list created by linuxpert systems, chennai. How do we know which cycles to use as models for real processes. It is an idealized cycle in which friction losses in each of the four components are neglected.
To illustrate, the ankerlig power station, an opencycle gas turbine plant, has nine units of 150mw each, giving a total of 50mw. 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. It was also used to study the performance of reciprocating steam engines. Gas power cycles free download as powerpoint presentation. Pdf power plant lecture notes chapter2 steam power. Develop simplifying assumptions applicable to gas power cycles. It is over 1500c at the burner exit of turbojet engines. The main difficulties of the carnot cycle are overcome by complete condensation in the condenser and by superheating optional. In order to analyze this complex gas power cycles, air standard cycles are conceived. Power cycles are cycles which convert some heat input into a mechanical. Closed cycles are used, for example, in space power.
Chapter 9 gas power cycles eastern mediterranean university. Lecture 43 gas power cycles and airstandard assumptions lecture 44 an overview of reciprocating engines and otto cycle lecture 45 analysis of diesel cycle lecture 46 analysis of brayton cycle lecture 47 examples on gas power cycles such as otto, diesel and brayton lecture 48 rankin and carnot vapour power cycles. In this case the turbine operates at steady state with inlet conditions of 6 mpa, t 275. Proprietary and confidential what is an open cycle gas. A gas turbine is a turbomachine and basically similar to steam turbine regarding its working principle the first turbine to produce useful work was probably a wind mill, where no compression and no combustion exist now a days gas turbine include a compression process and combustion process. The overall thermal efficiency of a power plant can be increased by using binary cycles or combined cycles. Gas power cycles carnot cycle lecture notes by shet. The nature of the working fluids can be classified into two groups.
Evaluate the performance of gas power cycles for which the working fluid remains a gas throughout the entire cycle. Two primary classes of thermodynamic cycles are power cycles and heat pump cycles. Steam generated from the exhaust gas of the gas turbine is passed through a backpressure or extractioncondensing steam turbine to generate additional power. Pdf power plant lecture notes chapter2 steam power plant. The power cycle for a gas turbine jet engine for a brayton cycle there are two adiabatic legs and two constant pressure legs. Solve problems based on the otto, diesel, stirling. May 14, 2009 gas turbine power plants are lighter and compact when compared to power plants running on vapour cycles. In other books, the examples do not teach the students the underlying method or approach. The steam cycle is a practical one, it is the basis of virtually all steam power plants and hence electricity generation. This section provides the lecture notes from the course along with the schedule of lecture topics. A gas power cycle may consist of heat transfer, work transfer, pressure variations, temperature variations, volume variations and entropy variations. Four different types of gas power cycles are commonly used. Most gas turbines operate on an open cycle in which air is taken from the atmosphere, compressed in a centrifugal or axialflow compressor, and then fed into a combustion chamber.
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