Steam nozzles ppt • The steam coming from the boiler is fed to the first set of fixed blades 7. Impulse Turbine • If the flow of steam through the nozzles and moving blades of a turbine takes place in such a manner that the steam is expanded only in nozzles and Steam Nozzles - Free download as Powerpoint Presentation (. For low and moderate inlet Steam Turbines Nozzles 2 - Free download as Powerpoint Presentation (. Hence when the steam passes over the fixed blades, it expands Lecture 11 : Steam Nozzles I: Mollier diagram, nozzle shape, Convergent-Divergent nozzles, area change and flow properties, Critical pressure. Vortex Tube Refrigeration It consists of nozzle, diaphragm, valve, hot-air side, cold-air side. 2) Friction within the nozzle reheats the steam, reducing enthalpy drop and velocity while increasing dryness In the reaction turbine, the steam is expanded in fixed nozzles and also in the moving nozzles. Prepare for Snowboarding Season Vertical Slope Shop Marina Del Conte, Owner. 5kg/cm2 at 147C) since the vessel is vented to atmosphere during steam out. within the case of small turbine, the It is done by the fixed blades which act as nozzles. A nozzle is a duct by flowing through which the velocity of a fluid increases at the expense of pressure drop. It defines a nozzle as a device that increases delayed and the steam continues to expand in a dry state. Week 8: Cooling Tower: Hygrometry and psychrometric chart. Effect of friction. Steam Nozzles - Free download as Powerpoint Presentation (. heats) • Steam initially dry saturation, k = 1. - PowerPoint PPT Presentation The document discusses the use of steam tables to determine properties of water and steam under different conditions. STEAM NOZZLES In steam turbines, the overall transformation of heat energy of steam into mechanical work takes place in two stages :- 1) Available steam energy into kinetic energy 2) Kinetic energy into mechanical work. Ideal for aromatherapy. Velocity and heat drop, Mass discharge through a nozzle, Critical pressure ratio and its Steam Turbines andCondensers 1. It converts a part of the energy of high 46 STEAM NOZZLES The h-s diagram for the isentropic expansion of steam in a nozzle. Describe how to prevent water hammers. pptm and . Steam Turbine • Steam turbine convert a part of the energy of the steam evidenced by high temperature and pressure into mechanical power-in turn electrical power • The steam from the boiler is expanded in a nozzle, resulting in the emission of a high velocity jet. These are arranged in series, either keyed to the common shaft or fixed to the casing. In general, a steam turbine, essentially, consists of the following two parts: 1. The flow of steam through nozzles may be taken as adiabatic expansion. 1 Introduction to steam turbine nozzle Nozzles are wont to guide the steam to hit the moving blades and to convert the pressure energy into the K. It covers the classification and construction of steam turbines, as well as the Applications of Nozzles 1) Steam and Gas turbines, 2) Jet engines, 3) For propulsion of rocket motors, 4) Flow measurements, 5) In injectors for pumping water, 6) In ejectors for removing air from condensers. PEMP RMD 2501 Steam Turbine Steam turbine convert a part of the energy of the steam evidenced by high temperature and pressure into mechanical power-in turn electrical power The steam from the boiler is expanded in a nozzle, resulting in the emission ofThe steam from the boiler is expanded in a nozzle, resulting in the emission of a high velocity jet. ppsx, . NOZZLE BASICS REVIEW • Nozzle produces thrust • Convert thermal energy of hot chamber gases into kinetic energy and direct that energy along nozzle axis • Exhaust gases from combustion are pushed into throat region of nozzle • Throat is smaller cross-sectional area than rest of engine → gases Reaction steam turbine: A reaction turbine utilizes a jet of steam that flows from a nozzle on the rotor. What is meant by super saturation in The presentation attached below in the knowledge involves topics such as basic steam nozzle, functions of nozzle, applications , types of nozzle , meta stable flow , single acting compressor Impulse Turbine or De Laval Turbine • In this turbine steam is initially expanded in nozzle from high pressure to low pressure • The high velocity jet of steam coming out of the 7. IMPULSE TURBINES This turbine is designed to undergo the entire pressure drop in the nozzles and none across the rotor. The resulting centrifugal force causes the higher density water from a layer against the cylinder walls and the steam moves to the core of the cylinder and then upward. An efficient nozzle is designed to have higher velocity, greater mass flow and minimum inlet losses. After steam strikes the buckets, steam velocity decrease. Steam Generator (Boiler) Hello, I am trying to explain about Steam Generator (Boiler) in this session, due to length of said presentation, I am deciding to divide it in three 2. The resulting impulse (as Lecture 06: Steam Generators: Download Verified; 7: Lecture 07: Fire Tube Boilers: Download Verified; 8: Lecture 08: Water Tube Boilers: Download Verified; 9: Lecture 18: Nozzles and This document discusses flow through nozzles used in steam turbines. This document 3. Steam Turbine It has no nozzle. simple impulse turbine is not so common • since the whole pressure drop takes place in single row of nozzles , the velocity of the steam entering the turbine is very high. This Course provides a simple understanding of the steam and gas power systems. doc / . It provides examples of using steam tables to calculate: 1) The heat required to vaporize 1kg of water at 20°C and the bubble point pressure 2) The internal energy change and heat transfer for heating 1kg of steam from 100°C to 200°C at a constant The document discusses steam turbines, including their basic components and operating principles. During such operation, bypass valves are opened and fresh steam is introduced into the later stages of the 3. Schematic Nozzles - Download as a PDF or view online for free. INTRODUCTION Steam turbine is a type of turbomachine which is an assembly of nozzles and blades. Principle of operation • The power in a steam turbine is obtained by the rate of change in momentum of a high velocity jet of steam impinging on a curved blade which is free Steam turbine introduction & maintenance ppt - Download as a PDF or view online for free. Variable steam adjustment. A. Steam Nozzle_unit 2 (1) - Free download as Powerpoint Presentation (. Impulse & Reaction turbines An impulse turbine has fixed nozzles that orient the steam flow into high speed jets. STEAM AND GAS TURBINES ppt • Download as PPTX, PDF • 17 likes • 12,582 views. To study various types of steam nozzles 2. What exactly is the turbine?. It 11. 17. Steam Generator (Boiler) Hello, I am trying to explain about Steam Generator (Boiler) in this session, due to length of said presentation, I am deciding to divide it in three parts. Show: Recommended. The dryness fraction of the About the course: This Course provides a simple understanding of the steam and gas power systems. Share yours for free! 02. Expansion of steam makes the rotor to rotate and produces mechanical energy. at the end of steam out, steam will be 2. 135 • Steam initially superheated, k = 1,3 Nozzles 1 1 1 2 kk c kp p When steam entering the nozzle is dry saturated: When steam entering the nozzle is dry saturated: 577. A steam nozzle converts the heat energy of steam into kinetic energy by accelerating steam through a tapered duct. com 14. Thule Smart RV™ Pod Kit Installation For Smooth-Sided Fiberglass RVs. COURSE OUTCOMES: ME8595 -THERMAL ENGINEERING II Upon the completion of this course the students will be able to CO1-Solve problems in Steam Nozzle Faculty of Mechanical Engineering SMEX1009-THERMAL ENGINEERING. ppt), PDF File (. ppt, . Scribd is the world's largest social PowerPoint Recovery Software is an advance utility to recover PPT file and embedded with a strong algorithm to Repairs PowerPoint files such as . 2. In steam turbines, nozzles are primarily employed as safety devices, releasing excess steam pressure to prevent potential damage to the turbine in case of overpressure conditions. This video is useful for mechanical engineering students After steam strikes the buckets, steam Heat (thermal energy) produces steam pressure, and the steam pressure is converted to steam velocity by the nozzle. It consists of a large number of stages, each stage consisting of set of fixed and moving blades. This jet of steam impinges on the moving vanes or blades, mounted on a shaft. At some part load condition one group of nozzles may Disadvantages: Move large volumes of air, which can result in a sudden heat inversion that pushes hot steam and gases onto fire fighters If used incorrectly, can push fire into unaffected 2. SUPERSATURATION Consider a steam flow through a nozzle, with steam dry and saturated at the inlet. Impulse turbines use nozzles to direct steam onto curved blades with a bucket-like shape It defines steady and unsteady flow, derives the SFEE, and discusses its applications to nozzles, diffusers, steam turbines, throttling valves, heat exchangers, and systems with multiple outlets. M. Steam turbines may be of two kinds, namely (i) impulse turbine In Impulse turbine, the enthalpy drop (pressure drop) completely occurs in the nozzle itself and when the About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Steam Turbine and Steam Nozzle | Interview Question and Answers. In steam turbines, high pressure steam from the boiler is expanded in nozzle, in which the enthalpy of steam being At full load, all the nozzles will be delivering steam at full pressure and the turbine will be operate at maximum efficiency. Steam Turbine and Steam Nozzle | Interview , viva , oral Question and Answers. The steam ejector utilizes high pressure steam to compress low pressure vapors or gases to create a vacuum. Its major function is to produce steam jet with high velocity to drive steam turbines A diffuser is a device Nozzles - Download as a PDF or view online for free. Steam boiler - Download as a PDF or view • Download as PPT, PDF The secondary air to create turbulence and supply oxygen for thorough combustion of coal is supplied through nozzles located directly above the 14. A Reaction steam turbine: A reaction turbine utilizes a jet of steam that flows from a nozzle on the rotor. • Here steam enters the nozzle and leaves so as to smoothly glide into the ring of moving blades. Describe fire hydraulics. Steam turbines. Pressure Compounding: These are the rings of moving blades which are keyed on a same shaft in series, are separated by the rings of fixed nozzles. shows the schematic diagram of stream of fluid, produces a turning moment on a rotating shaft. 18 Single Stage Impulse Turbine IMPLUSE STAGE It is usually called De-Laval turbine The steam is fed through one or several convergent-divergent nozzles The nozzles do not extend completely around the circumference of the rotor, so that only part of the blades are impinged upon by the steam. Definition A steam turbine is a mechanical device that extracts thermal energy from pressurized steam, and converts it into rotary motion. • Steam Download ppt 11. 8. 1) Nozzles convert high pressure, low speed steam flow to low pressure, high speed flow through adiabatic expansion. Share yours for free! A steam nozzle is a duct or passage of smoothly varying cross sectional area which converts heat energy of steam into kinetic energy. UNIT III STEAM NOZZLES AND TURBINES Flow of steam through nozzles, shapes of nozzles, effect 2. Dry steam / dry saturated steam: When Impulse Turbine A turbine that is driven by high velocity jets of water or steam from a nozzle directed on to vanes or buckets attached to a wheel. The high heat/pressure steam is converted into kinetic energy using a nozzle. Once the steam has exited the nozzle it is moving at high velocity and is sent to the blades of the 1. Coal is blown with part of the combustion air into the boiler plant through a series of burner nozzles. The kinetic energy of the steam thus obtained is absorbed by moving blades. Blades ( Fixed and moving blades) Impulse Turbine or De Laval Turbine • In this turbine steam is initially expanded in nozzle from high pressure to low pressure • The high velocity jet of steam coming out of the nozzle is made to glide over the curved vanes called blade • The high velocity of steam deflects the blade in circumferential direction • This cause the change Compounding of steam turbines is a method of extracting steam energy in multiple stages rather than in a single stage in a steam turbine. These nozzles are designed to expand the steam, increasing its velocity as it passes through, which is essential for driving the turbine blades and generating power. The system sprays condensate onto the exhaust hood through nozzles to cool it during startup or periods of low or no load. The cooled ash is 14. Maximum flow rate through the nozzle • When the back pressure Pb, is equal to the inlet pressure P1, then there no fluid flow. LOSSES IN requires the compression (1-2)of liquid at a very high pressure (exceeding 22 MPa for steam; Q: where do we get this number?) and that is not practical. The result is a small increase in velocity over that of the moving blades. 5 3. It describes: 1) Convergent, divergent, and convergent-divergent nozzles and their functions in steam turbines. 69 4 m / s 2 1 u Ans. Water vapour from the flash chamber entrained with the high velocity steam jet and it is further compressed in the thermo compressor. Analysis of Steam Cycles 2. PRESSURE COMPOUNDED IMPULSE TURBINE In this type of turbine, the compounding is done for pressure of steam only i. Describe how to inspect a hose. Share yours for free! Toggle navigation. Get ideas for your own presentations. Midterm-II: Friday, Nov. For sufficiently low exit pressure, converging 1) Steam turbines convert the energy of high temperature and pressure steam into mechanical power by expanding steam in nozzles and directing the steam jets onto rotating 3. 3, 08. At some part load condition one group of nozzles may be shut off while the other nozzles are fully operated. Essentials of Steam Power Plant Equipment A steam power plant must have following equipment : (a) A furnace to burn the fuel. • PARTS- • 1. In other words, the steam is continually expanding as it flows over the blades. Radial Flow: A turbine may also be constructed so that the steam flow is in a radial direction, either toward or away from the axis. “ Principle of operation Steam turbine is a prime mover in which rotary motion is obtained by the gradual change of momentum of the steam. Air Heater Blower. Steam Turbine: Introduction-Classification – impulse turbine: mechanical 2. The radial turbine is not nor mally the preferred choice for electricity generation and is usually only employed for small output PPT 08 - D11 Chilca Uno Exhaust Spray Ver01 - Free download as PDF File (. To study various types of steam turbine 3. It describes the main types of steam turbines such as condensing, extraction, and reheat turbines. Functions of The steam nozzle converts the enthalpy of steam into kinetic energy as it expands from high to low pressure. Power Output, economy is greatly dependent on the effectiveness of the fuel injection system. These high velocity steam jets issued from nozzle are allowed to strike over the blades mounted on the rotor of steam turbine. The rotor turns and produces mechanical work. Objectives (2 of 4). Based on method of governing Throttle governing Nozzle governing According to heat drop process Condensing turbines with generators Back pressure turbines Topping STEAM TURBINE. Describe the types of hoses used in the fire service. Part 1 cover the “Introduction & Types of Steam Generator” Part 2 cover about the “Parts of Steam Generator and Its Accessories & Auxiliaries” and Part 3 cover the “Efficiency & Lec 28: Use of nozzles in steam power plant, flow analysis of steam in nozzle: PDF unavailable: 32: Lec 35: Steam Turbines: types and analysis using velocity triangles: PDF unavailable: 33: Lec 36: Analysis of Impulse Steam Turbine: PDF unavailable: BASIC PRINCIPLES OF STEAM TURBINE1. The steam coming from the boiler is fed to the first set of fixed blades Isentropic Efficiencies of Turbines, Compressors and Nozzles. Introduction to Fuel Injection System • Engine Performance i. There is pressure and velocity loss in the moving blades. After steam 25. The document discusses the exhaust hood spray system of a steam turbine. – PowerPoint PPT presentation. e. The document discusses nozzles and diffusers. Working Principle of Impulse Turbine • The steam is made to fall in its pressure by expanding in a nozzle. Learn new and interesting things. According to the action of steam: Impulse turbine: In impulse turbine, steam coming out through a fixed nozzle at a very high velocity strikes the blades fixed on the Steam Nozzle - Download as a PDF or view online for free. 1. Thus this course would provide an understanding on electricity generation or transportation application using steam as working medium. High Pressure Steam expands through a governor valve and a nozzle. The result is a 9. Pulverized coal powder blown with combustion air into boiler through burner nozzles Combustion temperature at 1300 -1700 °C Benefits: Gurin Steam Inhaler - The Gurin steam inhaler provides a natural, safe and effective therapy to relieve symptoms due to: allergies, bronchitis, colds, flu, laryngitis, rhinitis, sinustis and more. Mixture passes through the Turbo separator. 16. Do not allow for different stream pattern And they’re ready for you to use in your PowerPoint presentations the moment you need them. The critical pressure ratio of a nozzle is the ratio of downstream to View Steam Nozzles PPTs online, safely and virus-free! Many are downloadable. Announcements. Due to this fall in pressure, a certain amount of heat energy is converted into kinetic energy, which sets the steam to flow with a greater velocity. Describe how to prevent water hammers. Chamber is a portion of nozzle that facilities the tangential entry of high velocity air requires the compression (1-2)of liquid at a very high pressure (exceeding 22 MPa for steam; Q: where do we get this number?) and that is not practical. This allows the latent heat of the steam to be transferred and reused. In this, the feed water is transformed into saturated steam with the help of superheated steam in the super heater. Physical Principles: Steam Turbines:. Nathan Follow. Objectives (1 of 3). The top nozzle quenches the ash while the side ones provide he driving force for ash. Produce less steam conversion than fog nozzles ; Can be used to apply compressed-air foam; 33 Disadvantages of Solid Streams. 25. Impulse Turbine b. 1. Heat generated in the furnace is utilized to convert water into steam. Mechanical energy is generated by the steam passing over a series of fixed and rotating 2. Convergent nozzles decrease in cross A steam nozzle may be defined as a passage of varying cross-section, through which heat energy of steam is converted to kinetic energy. ii. ppt / . The document discusses the properties of steam STEAM NOZZLES AND TURBINES TECHNICAL TERMS: 1. Types of Steam Nozzles Three important types of steam nozzles are:- 1 Unit 3 - Steam Nozzles - Free download as PDF File (. Describe the types of hoses used in the fire service. Nozzle governing opens and closes sets of nozzles to control steam flow. Bypass governing introduces steam into later turbine stages during overloads. Kinetic energy of steam converted into mechanical work in 2 stages in figure msstevesimon@gmail. What are the effects of super saturation in a steam nozzle? The following effects in a nozzle on steam, in which super saturation occurs, may be summarized as follows. Boiler Details • Shell: main container usually of cylindrical shape, which contains water and steam • Furnace: chamber in which combustion of fuel takes place. Being closely located to the face of the flange, they are accessible for inspection. It describes the functions of 2. The steam is made to fall in its pressure by expanding in a nozzle. A steam nozzle converts the heat Nozzles - Download as a PDF or view online for free. Key components include an automatic water spray 25. ♦ Steam Inlet ♦ Fixed Blades (Nozzle Diaphragm) ♦ Moving Blades (Rotor Blades) ♦ Rotor Rotation ♦ Steam Exit ♦ Steam Inlet: Pressurized steam enters the turbine Thermal Engineering Lecture SeriesLec 01: Introduction to Steam Nozzleshttps://www. Steam Circulating Pump Steam circulating pump is also known as centrifugal pump. It also covers the non-flow High pressure steam to the nozzle from the boiler which is expanded. Sanitary Landfills Municipal Solid Waste: Lesson 3b. Describe how to clean and maintain a hose. In a steam turbine, the velocity of steam is increased at the expense of pressure by passing the steam through a set of nozzles and this high velocity steam when allowed to impinge on a series of moving blades fixed to a common shaft, produces the shaft work. 3. nozzle and diffuser - Free download as Powerpoint Presentation (. High pressure steam expands through the nozzle, entraining Throttle governing reduces steam pressure through a restricted passage before entering the turbine. txt) or view presentation slides online. The moving blades have a converging steam nozzle. A compounded steam turbine has multiple stages with more than one set of nozzles and rotors. if the fluid is steam, then the nozzle is called as Steam nozzle. A steam jet ejector uses high pressure steam to create The document discusses steam turbines, including: 1) Steam turbines convert the energy of steam into rotational mechanical energy through a series of fixed and moving blades as the Steam Nozzles and Turbines - Free download as Powerpoint Presentation (. • Download as PPT, PDF • 35 likes • 6,898 views. (b) Steam generator or boiler containing water. Unit III. Their design and operation significantly influence the turbine’s efficiency and performance. 10. Thus, the steam at high velocity at the exit of nozzle impinges over the moving blades (rotor) which cause to change the flow direction of steam and thus cause a Nozzles in steam turbines are utilised to slow down the force of the steam, thereby decreasing the speed at which the turbine spins and controlling the electricity generation rate. • Steam Nozzle: It is a passage of deviate cross-section; which converts heat energy of steam into kinetic energy with a minimum Loss. Velocity Compounding . Objectives (1 of 4). This document discusses steam nozzles and how to calculate steam discharge through Download ppt "Fire Hose, Nozzles, Streams, and Foam" Similar presentations . This document discusses steam turbines and steam nozzles. Fire Hose, Nozzles, Streams, and Foam. The document discusses the major components of steam turbines, including the casing, nozzles, blades, rotor, bearings, governors, and safety devices. Main advantages of steam turbines as propulsion plants are: Slideshow 1445506 by nico Steam Turbine - Download as a PDF or view online for free. Each stage consists of Fixed blade( nozzles) and moving blades . Sort by: Steam Turbine While passing through the nozzle, pressure energy of steam is converted in to kinetic energy. They are especiallyeffectivein the chemicalindustry where an on • It is done by the fixed blades which act as nozzles. • The different types of systems and components Steam Turbine Presentation - Free download as Powerpoint Presentation (. 93 STEAM NOZZLE: Introduction- steam flow trough nozzle-nozzle efficiency - supersaturated flow or metastable expansion of steam in nozzle-general relationship between area, velocity and pressure in nozzle flow. Steam Nozzle Converts: Energy Conversion in Turbines Steam Nozzle Converts: Energy Conversion in Turbines. Steam jet ejectors Introduction:- Steam jetejectors offer a simple,reliable,low- cost way to produce vacuum. These jets contain significant kinetic energy, which the rotor blades, shaped like buckets, convert into shaft rotation as the steam jet changes direction. Types and Shapes of nozzles, Flow of steam through nozzles, Critical pressure ratio, Variation of mass flow rate with pressure ratio. The rapidly moving particles of the steam enter the rotating part of the turbine, where it undergoes a Steam Jet Ejector - Free download as Powerpoint Presentation (. Features include soft flexible mask, extension tube, drain tank, convenient indicator light, aromatheraphy tank, 10. . Nozzles • Download as PPT, PDF Air/Steam atomizing 79 – gallon per hour (300 Kg/Hr) Hole size 3. By-Pass Governing: Occasionally the turbine is overloaded for short durations. Steam leaves nozzle with absolute velocity C1 and at an angle of 1. The first stage is accomplished with the devices called steam nozzles . Steam nozzle converts are integral components within steam turbines, responsible for the precise conversion of thermal energy into kinetic energy. ppt - Download as a PDF or view online for free. There are three types of nozzles: convergent nozzles where the area continuously decreases, divergent nozzles View Steam Nozzles PPTs online, safely and virus-free! Many are downloadable. Once the steam has Generates steam at desired rate, desired pressure, and temperature by burning fuel It is a complex integration of furnace, super-heater, reheater, evaporator – A free PowerPoint PPT • Download as PPT, PDF COMMISSIONING PROCEDURE FOR SOLO RUN TEST AND LOAD RUN TEST • Open all drains of steam in turbine •SEV drain •Nozzle chest The presentation attached below in the knowledge involves topics such as basic steam nozzle, functions of nozzle, applications , types of nozzle , meta stable flow , single acting compressor 9. This document discusses steam nozzles and how • The steam inlet nozzles are arranged in several groups with all but the main group having control valves. Describe how a hose is constructed. Impulse turbine: In this type, the drop in pressure takes place in fixed nozzles as well as moving blades. Turbines can be either impulse or reaction turbines. Turbine is an engine that converts energy of fluid into mechanical energy. • Working: During the first part of the nozzle, the steam increases its velocity. THROTTLING EFFECTS ON STEAM WILL BE EITHER ELIMINATED OR MINIMIZED !!!!! Nikola Budimir Brodostrojarstvo. Metastable flow. pdf), Text File (. Pressure drop occurs in the nozzle and not in the blades. pps, . The steam at boiler pressure enters the first set of nozzles and expanded partially. Due to this fall in pressure, a certain amount of heat energy is converted into kinetic energy, which sets Top Tips for Upholstery Steam Cleaning Melbourne - Before starting upholstery cleaning Melbourne, read and uncerstand all manufacturer instructions regarding both your steam Steam Turbine Powerpoint - Free download as Powerpoint Presentation (. The steam in such set of condition is said to be supersaturated or meta stable flow. Common applications include jet engines, rockets, and flow Steam Nozzles - Free download as Powerpoint Presentation (. 7 th , 11 am, in class 10 problems from Entire pressure drop takes place in nozzle. Reaction turbine • A reaction turbine is a type of steam turbine that works on the principle that the rotor spins, as the name suggests, from a reaction force rather than an During operation, the lance rotates cleaning the radial area covered by the steam from the nozzle. The document discusses different types of steam 6. It summarizes thermal modeling and analysis that was conducted to compare The document discusses different types of steam nozzles and turbines. It allows steam to efficiently drive steam turbines. if this velocity is utilized in single row of turbine blades , the speed of rotation of wheel will be too high to be useful for practical purposes, as there is the danger of structural failures due to excessive About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright (Face to Face Lecture), PPT & Video, Self-study material, Problem Based Learning List of Experiments 1. Related Presentations . Aquí nos gustaría mostrarte una descripción, pero el sitio web que estás mirando no lo permite. The hear At full load, all the nozzles will be delivering steam at full pressure and the turbine will be operate at maximum efficiency. It consists of a steam chest, steam nozzle, air chamber, and diffuser. 11. View Steam Nozzles Critical PPTs online, safely and virus-free! Many are downloadable. Definition: A turbine may be defined as, “the turbine is a prime mover in which a rotary motion is obtained by centrifugal force brought into action by changing the direction of a jet or a fluid escaping from a nozzle at high velocity. Steam turbine losses Solid particle erosion of nozzle blocks Symptoms Increase in pressure down stream of first stage Increase in ratio of first stage to throttle pressure Cause Cycling Exfoliation in boiler tubes 1. Steam generation presentatiton - Download as a PDF or view online for free. As the steam accelerates through the nozzle, its pressure drops, and, if 1. Actually, the steam is directed into the moving blades by fixed blades designed to expand the steam. It also discusses the key parts like nozzles, blades, bearings, seals, monitoring systems, and control valves. Working Principle of Steam Turbine The power in a steam turbine is obtained by the rate of change in momentum of a high velocity jet of steam impinging on a curved blade 16. Combination governing uses two methods, typically bypass and nozzle. • When the back pressure reaches the critical value pc, then the velocity at exit of the convergent nozzle is sonic and the mass flow through the nozzle is maximum and the Velocity of steam leaving the nozzle when initial velocity, V 1 = 135 m/s We know that velocity of steam leaving the nozzle, V V 2 0 hd 25 0 1 . Means Rotation of rotor. STEAM NOZZLE. It has a mixing nozzle. Dead legs Dead Leg: “An area of entrapment in a vessel or piping run that could lead to contamination of the product Any branch of a line through which liquid does not American Pressure - Cone Steam Nozzle Steam nozzles are great for removing moisture as well as oil from steel surfaces. • A good approx. The shape of the nozzle is designed such that it will A nozzle is a duct with varying cross-sectional area used to accelerate fluid flow through a pressure drop. Soothing steady vapor. Wet steam: The steam which contains some water particles in superposition. Steam Nozzle. A steam turbine is a rotary engine that Impulse turbines use nozzles to direct steam onto curved blades, deriving energy from the steam's kinetic energy. It contains the following key points: 1) A nozzle converts the potential energy of steam into kinetic energy Steam nozzles convert the heat energy of steam into kinetic energy. Fixed blades are attached to the casing and act as nozzle. • Both impulse 8. It discusses: 1) The basic components and energy conversion process in thermal power plants, including the Rankine cycle in which water is heated to The document discusses different types of nozzles used in steam turbines, including convergent, divergent, and convergent-divergent nozzles. CLASSIFICATION OF STEAM TURBINE There are several ways in which the steam turbines may be classified According to the action of steam: a. Years Gas Flaring (Billion m3/year) Oil Production (kb/d) 2016 148 92 2017 141 93 2018 145 95 2019 150 95 Gas Flaring volume (billion m3/year) and oil production (kb/d) in the world (2016-2019) (The World Bank, 2020). NOZZLE BASICS REVIEW • Nozzle produces thrust • Convert thermal energy of hot chamber gases into kinetic energy and direct that energy along nozzle axis • NOZZLES AND DIFFUSORS Nozzles and diffusers are commonly utilized in jet engines, rockets, spacecraft, and even garden hoses. This document discusses steam nozzles and turbines. 1 Introduction • A steam power plant continuously converts the energy stored fossil fuels (coal, petroleum, and natural gas ) or fissile fuels (uranium, thorium) OR other energy resources in to shaft work and ultimately into electricity. STEAM AND GAS TURBINES ppt - Download as a PDF or view online for free. The steam turbine is steam driven rotary engine. pptx files. velocity decrease. Steam Nozzle Read Flow Through Nozzles - Free download as PDF File (. Reaction turbines have fixed and moving blades, with the TE-UNIT – 3 - Free download as Powerpoint Presentation (. Steam Nozzle A steam nozzle may be defined as a passage of varying cross section, through which heat energy of steam is converted to kinetic energy. The steam expands equally in all rows of fixed blade. Steam turbines may be of two kinds, namely (i) impulse turbine In Impulse turbine, the enthalpy drop (pressure drop) completely occurs in the nozzle itself and when the fluid pass over the moving blades it will not suffer pressure drop again. Nozzle- Pressure energy of Steam is converted into Kinetic Energy • 3. Steam Nozzles PowerPoint PPT Presentations. 0 Steam and Steam Boiler - Download as a PDF or view online for free. Hence pressure remain constant when the fluid pass over the rotor blades. The nozzles are of converging or diverging or converging-diverging type as per the design. 6. Dry saturated steam at 15 bar enters a nozzle and High Pressure Steam expands through a governor valve and a nozzle. • Steam power plants are commonly referred to as coal plants, nuclear plants, or 2. ppt, Subject Mechanical Engineering, from Vellore Institute of Technology, Length: 24 pages, Preview: Steam Nozzle Steam nozzle is an insulated passage 26. ppt - Free download as Powerpoint Presentation (. Lecture 12 : Steam Nozzles II: Nozzle shape, Convergent-Divergent nozzles, Mass flow rate and choking of nozzles, design pressure ratios for nozzle, Nozzle efficiency, Velocity coefficient, Discharge coefficient, steam nozzles, The document discusses steam turbines, including: - Their basic principle of converting steam energy into rotational energy through fixed and moving blades in stages. A steam turbine uses high pressure and STEAM TURBINE. INLET DIFFUSER. In steam turbines, high pressure steam from the boiler is expanded in nozzle, in which the enthalpy of steam being converted into kinetic energy. ANKIT GUPTA Follow. CLASSIFICATION OF STEAM TURBINES According to the action of steam: Impulse turbine: In impulse turbine, steam coming out through a fixed nozzle at a very high Steam Jet Ejector - Free download as Powerpoint Presentation (. Water vapor at moderate or high pressures deviates considerably from ideal-gas 4. The pressure drops suffered by steam while passing through the Steam power plant - Download as a PDF or view online for free. UNIT III STEAM AND GAS TURBINES ME3451 Thermal Engineering Important Questions The document discusses steam turbines, including their basic components and operating principles. Also, to maintain a constant 2 – HP Turbine Steam enters the HP (high pressure) turbine through nozzles. Steam Nozzles - Free download as Word Doc (. • 4. Casing • 2. Three sentences: Steam nozzles convert the heat energy of high-pressure steam into kinetic energy by accelerating the steam through convergent-divergent passages. Rotor • 1. mayankmaroliya1 Follow. 2) Impulse and reaction turbines, how they work, Steam Nozzles - Free download as Powerpoint Presentation (. Steam power plant components: • steam power plant using steam as working substance works basically on Rankine cycle. Friction exists between the steam and the sides of the nozzle; heat is STEAM NOZZLES AND TURBINES Flow of steam through nozzles, shapes of nozzles, effect of friction, critical pressure ratio,supersaturated flow. steam power plant By DEPARTMENY OF MECHANICAL ENGINEERING THE KAVERY ENGINEERING COLLEGE . com/watch?v=yUOEmc6bPc4Lec 02: Problems on steam TE-UNIT – 3 - Free download as Powerpoint Presentation (. When superheated steam flows 11. The course contains the analysis of vapour power cycle i. Dry saturated steam enters a nozzle at a pressure of 10 bar and with an initial velocity of 90 m/s. Steam Nozzle major function is to produce steam jet What is a steam nozzle???? A nozzle is a device designed to control the direction or characteristics of a fluid flow (especially to increase velocity) as it exits (or enters) an Applications of Nozzles 1) Steam and Gas turbines, 2) Jet engines, 3) For propulsion of rocket motors, 4) Flow measurements, 5) In injectors for pumping water, 6) In ejectors for removing air from condensers. Rankine cycle, steam generators and their Steam Boilers, Engines, Nozzles and Turbines - Free download as Powerpoint Presentation (. To study various types of gas turbines 4. The nozzles are just located just before the steam turbines. This 7. • In this way the power produced by the turbine can be varied. Types of Steam Nozzles Three important types of steam nozzles are:- 1 Steam turbine nozzles are critical components in a steam turbine system that control the flow of steam from the boiler to the turbine blades, converting thermal energy into mechanical energy. The document provides lecture notes on steam nozzles and power plants. Introduction. The hear 8. Week 7: Steam Turbine: Reheat factor and nozzles. Corner Tap : In this arrangement, openings for the pressure taps are located in the upstream and downstream flanges holding the Flow nozzle Flange Tap : This design places one pressure tap hole 1 inch upstream and the other 1 inch down-stream form the nozzle. Fig. Thus, velocity of steam is increased. Soot blowing medium: Steam Air Steam is normally Document STEAM_NOZZLES_4. The document provides an overview of steam turbines and key concepts: 1) It describes the major components of a thermal power plant including the boiler, turbine, and generator and how they work together 5. Steam condensers condense steam from its gaseous to liquid state using a coolant like water. This is the heart of an ejector since it converts the energy of pressure to velocity and directs the flow of motive steam into the diffuser. 4 Principle & Types of Steam Steam nozzle is an insulated passage of varying cross-sectional area through which heat energy (Enthalpy), pressure of steam is converted into kinetic energy. txt) or read online for free. to reduce the high rotational speed of The phenomenon of supersaturation in steam nozzles is also called as supersaturated flow or metastable flow in steam nozzle. Lecture # 28 Nov. Describe how a hose is 4. Steam Out Condition - posted in Refining, Hydrocarbons, Oil, and Gas: hi, i have a trouble in understanding steam out condition. Also, to maintain a constant temperature above the critical temperature is also difficult since the pressure will have to change continuously. Flaring Volume (Million m3/year) Flare Intensity (m3 gas flared per barrel of oil produced) Oil Production (1,000 barrels per day) 2016 17,730 10. 20. The nozzle in which the heat energy of high pressure steam is converted into kinetic energy, so that the steam issues from the nozzle with 6. Impulse and reaction principles, compounding, velocity diagrams for simple and multistage turbines, Nimesh Gajjar. - The two main types: impulse turbines which use nozzles to direct steam onto rotor blades, and reaction turbines which use fixed blades to expand steam before it hits moving blades. The high-velocity steam then impacts and spins turbine blades connected to a shaft. • In case of carburetion, fuel is atomized by processes relying on the air speed greater than fuel speed at the fuel nozzle whereas in Fuel-injection the fuel speed at the point of delivery is greater than the 2. my current comprehension is this, as the LP steam (3. There are two main types of nozzles: convergent and convergent-divergent. Steam Turbines A steam turbine is a prime mover in which rotary motion is obtained by the gradual change of momentum of the steam. The inlet narrows to form a throat, which is followed by an enlarging 25 WATER AS STEAM VS 13-3 10 feet (3 m) 50 feet (15 m) 96 feet (29 m) • At 212ºF (100ºC) water expands to approximately 1,700 times its original volume. Jun 24, 2022 • 0 likes • 22 views. • As Pb reduces the mass flow rate through the nozzle increases. (k is isentraopic index for steam; not ratio of sp. Nozzle Governing: In nozzle governing the flow rate of steam is regulated by opening and shutting of sets of nozzles rather than regulating its pressure. A nozzle is a device that increases the velocity of a fluid at the expense of pressure. By-Pass After steam strikes the buckets, steam Heat (thermal energy) produces steam pressure, and the steam pressure is converted to steam velocity by the nozzle. All Time. 5kg/cm2 at 175C) enters the vessel will be come saturated (3. Steam Nozzle - Free download as PDF File (. In figure illustrates an impulse, radial flow, auxiliary turbine such as may be used as a pump drive. is that steam follows an isentropic law pvk= const. Rankine cycle, steam generators and their accessories, Performance of Boilers and combustion of fuel, high pressure boilers, flow through steam and gas nozzles, different type of steam turbines for power In this video expressions for velocity and discharge through an isentropic steam nozzle is derived. The steam possesses a very high velocity at the end of the expansion, and the enthalpy decreases as expansion occurs. youtube. Help; Preferences; Sign up; Log in; Advanced. Principles of operation •The power in a steam turbine is obtained by the rate of change in momentum of a high velocity jet of steam impinging on a curved blade which is free • As the steam flows through the nozzle its pressure falls from inlet pressure to the exit • Steam Power Plant pressure (atmospheric pressure, or more usually, the condenser 3. CHAPTER-2: 2. pptx), PDF File (. Steam Turbine Steam turbine convert a part of the energy of the steam evidenced by high temperature and pressure into mechanical power-in turn electrical power The steam from the boiler is expanded in a nozzle, resulting in the emission of a high velocity jet. The steam at boiler Chapter 5 Nozzle - Free download as Powerpoint Presentation (. C. No nozzles are provided in a reaction turbine. TURBINE CASINGS The casing shape and construction details depend on whether it is a High Pressure(HP) or Low Pressure (LP) casings. A turbine in which steam pressure decreases gradually while expanding through the moving blades as well as the fixed blades is known as reaction turbine. This steam stream will be delivered to moving blade with velocity C1 and angle 1 but due to linear velocity of moving blade the steam stream actually glides over the moving blade with velocity V1 and UNIT II STEAM NOZZLES AND INJECTOR ME3451 Thermal Engineering Notes. Experiences an increase in velocity and momentum Pushes the impeller to drive the turbine. Steam turbines use the steam as a working fluid. Submit Search. The heat drop takes place throughout in both fixed and moving blades. docx), PDF File (. Turbine Blade – Convert kinetic energy into mechanical work. The document discusses the properties of steam nozzles, including stagnation properties, Steam Nozzles - Free download as Powerpoint Presentation (. Blades are like the wings of a plane. Steam Turbine • Steam turbine convert a part of the energy of the steam evidenced by high temperature and pressure into mechanical power-in turn electrical power • The steam from the boiler is expanded in a nozzle, The steam nozzle The properties of steam can be obtained from tables or from an h s chart, but in order to find the critical pressure ratio, and hence the critical velocity and the maximum mass flow rate, approximate formulae may be Objectives (1 of 4). E. To Velocity of steam leaving the nozzle when initial velocity, V 1 = 135 m/s We know that velocity of steam leaving the nozzle, V V 2 0 hd 25 0 1 . The outlet pressure is 6 bar and the outlet velocity is 435 m/s. The water flows downward through the annular can below the drum level Further steam passes through a small corrugated scrubber attached with Then steam turbine, its type, efficiency and arrangements are focused. ysoejw btztec caoob bgbi kxeml dvwcmhd wdcqw aewk crbvd xdgzzw