In an axial flow turbine, the flow enters and leaves in the axial direction. The cylinder valves control the flow of air through the. Users manual for updated computer code for axialflow. Introduction to fluid machinery turbines, pumps, blowers.
Each stage comprises of a row of rotor blades followed by a row of stator blades. The level is kept as such that students can smoothly move from a study of the most successful books in thermodynamics, fluid dynamics, and heat transfer to the subject of turbomachinery. Application of the energy equation between the two free surfaces, points 1 and 2. Axial flow turbine kaplan constructional features velocity triangles work done and. Axial flow compressors are more suitable for larger engines in.
Download fluid mechanics by nptel download free online book chm pdf. The cylinder valves control the flow of air through the cylinder. Axial and centrifugal compressor mean line flow analysis. This note will be useful for students wishing to gain an overview of the vast field of fluid dynamics. Usually a storage vessel or receiver is used with the. It is a rotating, airfoilbased compressor in which the gas or working fluid principally flows parallel to the axis of rotation, or axially.
This differs from other rotating compressors such as centrifugal compressor, axicentrifugal compressors and mixed flow compressors where the fluid flow will include a. Book download link provided by engineering study material esm. Civil quiz ebook electrical interview electrical lab electrical mcq electrical mock test electrical quiz engg mechanics notes free books g. Performance analysis of multi stage axial flow compressors 1 performance analysis of multi stage axial flow compressors p m v subbarao professor mechanical engineering department. In addition to its inherent advantage of high mass flow per frontal area, it can exhibit very good aerodynamic performance. All books are in clear copy here, and all files are secure so dont worry about it. Som,department of mechanical engineering,iit kharagpur.
Compressors, gas turbines and jet engines mcq practice. Nonpositive displacement compressor may be of axial flow type or centrifugal type depending upon type of flow in compressor. Applications of viscous flows through pipes and compressible flow. Performance analysis of multi stage axial flow compressors. The continuum hypothesis, kinematics, conservation laws. Compressor is a device which is used to increase the pressure of air from. Compressors, fans, and blowers are devices which are designed in such a way that they deliver gas at a pressure which is more than the genuinely existing pressure. In a reciprocating compressor, a volume of air is drawn into a cylinder, it is trapped, and compressed by piston and then discharged into the discharge line. Vorticity production in turbomachines and its influence upon meridional flows. The axial flow turbine, like its counterpart the axial flow compressor, is the most common type of turbine used in large gas turbines. Introduction a simple two dimensional analytical model 2d losses in axial flow compressor stage profile loss and blade performance estimation 3d flows in blade passages secondary flows, tip leakage flow, scrubbing simple three dimensional flow analysis full radial equilibrium equation free vortex and.
Axial flow compressors usually consists of a series of stages. Download as ppt, pdf, txt or read online from scribd. Performance analysis for axial compressors and fans 5. Nptel video lecture topic list created by linuxpert. Lecture series on steam and gas power systems by prof. Simplified meridional flow analysis for axial turbomachines 6. Introduction to fluid machines and compressible flow by prof. Nptel video lecture topics for mechanical engineering new no. The function of all of them is to draw in air from the atmosphere and produce air at pressures substantially higher. Fundamentals of fluid mechanics chapter 12 pumps and. Axial flow pumps are sometimes called propeller pumps because they operate essentially the same as the propeller of a boat. K gate gk international days gk awards gk basic national gk basic world gk biology gk chemistry gk computer gk electrics gk.
An axial compressor is a gas compressor that can continuously pressurize gases. 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. Read online axial and centrifugal compressor mean line flow analysis. The centrifugal pump the centrifugal pump,dimensionless parameters and similarity laws, axial flow and mixed flow pumps, fans, turbines, compressible. Aerothermodynamics of flow thru axial flow compressor. The impeller of a typical axial flow pump and the flow through a radial flow pump are shown in figure 7. Introduction a simple two dimensional analytical model 2d losses in axial flow compressor stage profile loss and blade performance estimation 3d flows in blade passages secondary flows, tip leakage flow, scrubbing simple three dimensional flow analysis full radial equilibrium equation free. A m pradeep, department of aerospace engineering, iit bombay.
Mod01 lec01 introduction to turbo machines syllabus. There may be significant radialand axial flow velocity components for the flow through the rotor row. Download lecture notes for fluid mechanics i download free online book chm pdf. Pdf comparative performance evaluation of a multistage. Lecture 1 introduction to turbo machines syllabus, references and schedules lecture 2 axial flow compressors and fans. Nptel video lecture topic list created by linuxpert systems, chennai. The features like a rise in pressure, working pressure, mechanical design and specific speed become the basis for the classification and differentiation. The flow across the blads involves a substantial radial flow component at the rotor inlet, exit, or both. Compressible axial flow, mixed flow, radial flow geometry. Generally, maximum pressure ratio achieved in a stage of axial compressor is about 1.
Introduction to fluid machinery turbines, pumps, blowers and compressors fluid machines machines are energy conversion devices are called turbomachinery which transfers energy between a fluid system and its mechanical system e. Turton the text is based on a course on turbomachinery which the author has taught since year 2000 as a technical elective. Users manual for updated computer code for axialflow compressor conceptual design arthurj. The fluid maintains a significant axialflow direction. Likewise, as is always positive, so the static pressure increases from root to tip. In an axial flow pump, the impeller pushes the liquid in a direction parallel to the pump shaft.
New material on wind turbines, and threedimensional effects in axial turbomachines is included. Aerospace engineering turbomachinery aerodynamics nptel. An axial flow compressor stage is designed to give free vortex tangential velocity distributions for all radii before and after the rotor blade row. Surge is a characteristic behaviour of a centrifugal compressor that can occur when inlet flow is reduced such that the head developed by the compressor is insufficient to overcome the pressure at the discharge of the compressor. Lecture 4 2d losses in axial flow compressor stage lecture 5 tutorial 1 lecture 6 3d flows in blade passages, secondary flows, tip leakage flow, scrubbling. In many cases, a properly designed heat recovery unit can recover anywhere from 50 to 90 percent of this available thermal energy and put it to useful work heating air or water. Basic principles and energy transfer in axial flow compressor nptel. The centrifugal pump the centrifugal pump,dimensionless parameters and similarity laws, axial flow and mixed flow pumps, fans, turbines, compressible flow and turbomachines. Download turbomachinery design and theory by rama s. Axial flow increase total pressure permits non cavitating operation in impeller. Download axial and centrifugal compressor mean line flow analysis. Axial flow compressor design, inter spool duct lecture 16 design of compressor blades, aerofoil design subsonic, transonic, supersonic profiles. Department of mechanical engineering rajagiri school of. Vtu nptel nmeict project progress report the project on development of remaining three quadrants to nptel phasei under grant in aid nmeict, mhrd, new delhi.245 892 1385 647 1341 269 777 1225 1495 715 97 1393 1151 1406 1154 717 1154 906 760 972 884 253 660 909 935 1339 510 33 765 788 640 433 311 1526 36 111 1454 1158 705 1094 54 1281 1136 100 815 1462 961 96