Steam nozzle nptel pdf. Stationary tube sheet 26.

Steam nozzle nptel pdf A 35 MW generator is to operate by a double overhung Pelton wheel. This document discusses different methods of governing steam turbines, including throttle, nozzle, bypass, and combination governing. The original tabulation, created by, National Institute of Standards and Technol- ogy (NIST, www. Impingement baffles 6. • Reaction turbine • Pressure drop shared by the rotor and the stator • The amount of pressure drop shared is given by the degree of reaction. 6 m/s. So this is trailing edge loss, and second one is imping loss. Initially, types of steam generators and their parts Jul 7, 2020 · The document describes metastable or supersaturated flow in steam nozzles. Good afternoon, I welcome you to this discussion on steam and gas turbine. Then, take a Mollier diagram and mark all the four NPTEL provides E-learning through online Web and Video courses various streams. The clearance between the feed pipe end and feed plate below is normallykept morethan 0. This steam will pass through a condenser as nozzles are very generic in nature, which means that nozzles can be designed for gas, which can be perfect gas or liquid or water or any incompressible fluid or it can be steam nozzle. Determine the mass flow rate of the steam and the state of the steam at the exit of the nozzle. In a combined cycle gas plant, the gas turbine exhaust energy is used to produce steam in a heat exchanger to supply a steam turbine. This note covers the following topics: 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. The nozzles are just located just before the steam turbines. NPTEL – Chemical Engineering – Chemical Engineering Design - II Joint initiative of IITs and IISc – Funded by MHRD Page 1 of 34 Module # 5 SEPARATION EQUIPMENTS: GENERAL DESIGN CONSIDERATIONS OF CYCLONE SEPARATORS, CENTRIFUGES, SEPARATION EQUIPMENTS 1. During the first part of the nozzle, the steam increases its velocity. A M Pradeep, Department of Aerospace, IIT Bombay. 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 The reader should refer to the NIST Steam Tables for original data. Score: 0 Accepted Answers: compressible flow through nozzles. Drain connection 10. Unit II - Steam Nozzle and Injectors PPT L2 Ideal and actual : Valve and port timing diagrams, P-V diagrams T2 Two stroke & Four stroke, and SI & CI engines & comparison T2 NPTEL L2 Geometric & operations of SI and CI engines T2 NPTEL L2 NPTEL L2 Compounding and Governing R2 PPT Effect of friction Reheated cycles and their combination 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. Flow would be isentropic inside the nozzle producing supersonic jet. Rocket-propelled vehicles use converging-diverging nozzles to accelerate the exhaust gases to the maximum possible is when the steam is entering in the blades it is known as imping loss. Expansion bellows 12. The effective head is 350 m at the base of the nozzle Assume Pelton wheel efficiency 84%, velocity coefficient of nozzle 0. in/noc. p. The nozzles also allow governing of the turbine by shutting off one or more them. me/gearinstituteJE की Dec 31, 2016 · It provides background on steam turbines and how they work, describing how steam is expanded through nozzles to convert heat energy to kinetic energy. In this study, we looked at using water to carry a nominal 30% of the heat rejection load from the power plant. Fig 1. • Rotor blades simply deflect the flow and hence have symmetrical shape. When saturated steam expands adiabatically in a nozzle, it becomes wet due to condensation. In exhaust pressure between, we will extract certain amount of steam and then the rest of the steam will be allowed to expand to the exhaust pressure of the turbine. So this is the Nozzle Schematic of a turbojet engine and station numbering scheme. Throttle governing controls steam flow by restricting the passage through a governing valve, reducing pressure. NPTEL Online Certification Course. link/jLFrJoin telegram channelhttps://t. Basic operation of axial compressors • Turbines on the other hand operate under – Perfect nozzle is too long • Optimum nozzle (Bell shaped nozzles) – Balance length/weight with the 3D flow losses • Plug nozzle and Aerospike nozzle – Good performance over a wide range of back pressures Other Nozzle Design Issues Karabeyoglu 12 ( ) ( ) T m u e + P e − P a A e + = 2 1 cos α! α: Nozzle Cone Angle CHAPTER-6_governing_system - IIT Roorkee 4. 75 - at 100 kPa. Generally, time available may be of the order of 10-2 second for steam to flow through nozzle along with its condensation. 567 kJ] /gm (x) H = 3300kJ /kg, P=1300kPa. ABOUT THE COURSE: This course deals with the steam power plants. Initially, types of steam generators and their parts Lecture 12: Steam Nozzles: Mollier diagram, Convergent-Divergent nozzles,Critical pressure and choked flow rates, Nozzle efficiency, Velocity coefficient, Discharge coefficient Week 6: Vapour Power Systems – III Lecture 13:Steam Generation Systems: Boilers and its classifications, Superheaters, Reheaters, Economizers, Air-preheater Steam Turbine Governing - Free download as PDF File (. Plate contractors 7. What is the state of the steam at the nozzle exit? (0. Lec 16: Steam Nozzle : Analysis and Efficiency: Download Flow of steam through nozzles: The flow of steam through nozzles may be regarded as adiabatic expansion. - The steam has a very high velocity at the end of the expansion, and the enthalpy decreases as expansion takes place. 1. Author(s): NPTEL MR. 2. 0. 45. So, steam nozzles falls in the area when we have liquid vapor mixture as well. This is essentially the continuation of what we have discussed in the last class. This results in a metastable or supersaturated state where the steam The steam is al owed to expand in the nozzle, where it gives a high velocity before it enters the moving blades The expansion of steam takes place party in the fixed blades and partly in the moving blades The steam is expanded from a high pressure to a condenser pressure in one or more nozzles The pressure and temperature of steam remains constant The process 1-2 is the isentropic expansion. page. STEAM CONDENSERS: Requirements of steam condensing plant, Classification of condensers, working NPTEL provides E-learning through online Web and Video courses various streams. The convergent divergent nozzle to accelerate steam to high speeds for use in impulse steam turbines was designed by de Laval in 1888. Nozzle, Steam Nozzle and Steam Turbine; Isentropic Flow; Iscentropic Flow of a vapor or gas through a nozzle; Steam Nozzles; STEAM TURBINES; Impulse Turbine; Pressure Compounding or Rateau Staging; Reaction Turbine; Hydraulic Turbines (Pelton Wheel, Francis Turbine and Kaplan Turbine) IMPULSE TURBINE; Pelton Turbine; Francis Turbine nozzles • Converging nozzle in a subsonic flow will have decreasing area along the flow direction. 3. PATIL Steam Nozzles and Turbines Steam Nozzle: A steam nozzle is a passage of varying cross-sectional area in which heat energy of the steam is converted into kinetic energy. Steam turbines convert the high-pressure, high-temperature steam from a steam generator into rotational shaft work. MondalDept Sep 30, 2021 · A steam ejector is normally designed for a motive steam pressure of 15 to 600 PSIG. The steam passes through the fixed nozzles and is direct to high speed dried rotor againsthe causing the rotor in high speed rotation. CYCOLNE SEPARATOR The steam is fed through one or several convergent-divergent nozzles which do not extend completely around the circumference of the rotor, so that only part of the blades is impinged upon by the steam at any one time. Head, Nozzle and Basic Flange STUDY NOTES Instructor: Javier Tirenti training@arvengconsulting. nozzle. LA, PATENTPENDING Design Owners of the nozzles ensures the control of the size of the tight drops for precise cooling, efficient gas. Floating tube sheet 21. Floating head flange 23. Score: O Accepted Answers: A shock is expected inside the nozzle. the column tangentially through anopen inlet nozzle placed almost at right angles to the liquid flow on the above tray. In the last class as you can recollect that we have doubt about the construction of the steam and gas turbines, in which will actually completely expand the steam from boiler pressure to condenser pressure. 34m m No, the answer is incorrect. 1. We are working on providing downloads as PDF. STEAM NOZZLES AND TURBINES Steam Turbines Problem 1 Make an observation that out of the 10 solved examples and the 8 exercise problems of this chapter, only 4 problems required the reference to the Mollier Diagram (enthalpy–entropy chart for steam). The high-pressure, high-temperature steam first expands in the nozzles emanates as a high velocity fluid stream. Instrument connection 11. • We assume flow enters the nozzle from a reservoir so that inlet velocity is zero. ac. 7) i t t t d h =Nu where is the Nusselt number for the tube-side fluid which is found by using Jul 26, 2017 · This document provides information about steam nozzles and steam turbines. Week 7: Flow nozzles: Use of nozzles in steam power plant, flow analysis in nozzle, nozzle efficiency. Mar 7, 2015 · This document provides information about steam nozzles and steam turbines. If the course is in pdf, then download option will be available in top right corner of the course or you can right click and save the file. We are in the MOOCs course Power Plant System Engineering module 2 that is Vapor Power System part 2. A M Pradeep, Department of Aerospace, IIT Bombay 6 Lect-7 Web courses are available in pdf and html format. It discusses: 1. Floating head cover 22. 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 Hydro Electric Power (Hydel Power)-6 ¾Sinusoidal output ¾Good voltage regulation ¾Cost effective for given power ¾Ease of servicing/operation NPTEL provides E-learning through online Web and Video courses various streams. 90. Historically, the theory of the flow of steam through nozzles was developed first in the late 1800 and early 1900 s. Pranab K. V > > η R ηβ W β W R ϕ in Nov 24, 2014 · This document provides information about steam nozzles and steam turbines. Stationary tube sheet 26. So, in this lecture we will start a new topic and that is nothing, but your steam nozzles and the steam nozzles are the essential components for steam turbines. Prof. Outcomes: Students should be able to (1) carry out a thermodynamic analysis of any device and evaluate the first law and second law efficiencies andany other thermodynamic property of interest (2) computethermodynamic properties of interest at theexit of a nozzle with air or steam as the workingsubstance. 12 m 1. This steam will pass through a condenser as 2. Energy added to the fluid. Nov 29, 2024 · Steam flow through the nozzle may be so fast that sufficient time is not available for heat transfer to take place and so the phase change lags behind the expansion. • We shall consider the effect of back pressure on the exit velocity, mass flow rate and pressure distribution along the nozzle. Pass partition 8. National Institute of Technology, Srinagar From the boiler the super-heated steam will go to the turbine. com/playlist?list=PLwdnzlV3ogoVJnW1S9GgOKYj5heOzl1dn Prof. 987) . Week 7 : Flow nozzles: Use of nozzles in steam power plant, flow analysis in nozzle, nozzle efficiency, Numerical problems. The values of the steam properties are mentioned below: Pressure (bar) hf (kJ/kg) 844. Then each component of the plant is discussed detail. . Steam and Gas Turbines: H-S Plots and Velocity Triangle. com www. Nozzles operating at P B (corresponding to curve (vi) in Fig. Introduction 2. (1. Week 7 : Flow nozzles: Use of nozzles in steam power plant, flow analysis in nozzle, nozzle efficiency, It will be e-verifiable at nptel. Week 8: It will be e-verifiable at nptel. Lec 34: Problem on flow nozzle: PDF unavailable: 31: 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: 34: Lec 37: Compounding of Steam Turbine NPTEL provides E-learning through online Web and Video courses various streams. [State of steam: Superheated; W = 25. Lecture 11 : Steam Nozzles I: Mollier diagram, nozzle shape, Convergent-Divergent nozzles, area change and flow properties, Critical pressure. The change of phase will begin to occur at point 2 ; vapour continues to expand in a dry state ; Steam remains in this unnatural superheated state untit its density is about eight times that of the saturated vapour density at the same pressure About the course: This Course provides a simple understanding of the steam and gas power systems. if the fluid is steam, then the nozzle is called as Steam nozzle. Steam and Gas Power Systems About the course This Course provides a simple understanding of the steam and gas power systems. Nozzle governing regulates steam flow through grouped nozzle valves to maintain constant pressure and temperature at the first turbine Expansion fans and compression waves appear outside the nozzle. This steam is then super heated in the super heater to extreme high temperature. Steam nozzles convert the heat energy of steam into kinetic energy by accelerating steam through a passage of varying cross-section. Throttle governing controls the turbine output by throttling steam flow through valves to alter the mass flow rate and available energy. pdf), Text File (. youtube. And then the later part of the nozzle, in which the steam derives more in volume than in velocity. The main function of steam nozzle in steam turbines is to produce a jet of steam with a high velocity. The steam possesses a very high velocity at the end of the expansion, and the enthalpy decreases as expansion occurs. 08kg/s, 0. Indian Institute of Technology Roorkee Sub: Steam and Gas Power Systems Instructor: Prof. It is very important in case of pressure compounding. 2. Vent connection 9. INTRODUCTION 2. Training Projects Connecting Dots Nozzles and Diffusers and Supersaturated Flow Hi I welcome you all in this course on steam and gas power system today we will develop a general relationship between different operating parameter in a nozzle and supersaturated flow shall also to be discussed in this like lecture. . NOC:Steam Power Engineering (Video) Syllabus; Co-ordinated by : IIT Guwahati; Available from : 2019-04-03; Lec : 1 Steam Nozzle: It is a passage of deviate cross-section; which converts heat energy of steam into kinetic energy with a minimum Loss. txt) or read online for free. NPTEL – Chemical Engineering – Chemical Engineering Design - II Joint initiative of IITs and IISc – Funded by MHRD Page 1 of 21 Module # 2 MECHANICAL DESIGN OF HEAT EXCHANGER: MECHANICAL DESIGN OF SHELL AND TUBE HEAT EXCHANGER 1. The supersaturation phenomenon occurs in the nozzle due From the boiler the super-heated steam will go to the turbine. , , To provide high quality technical and managerial manpower, information and consultancy, services to the If the back pressure is set at (vi), the flow will be isentropic throughout the nozzle, and supersonic at nozzle exit. Also, assume that blades are equiangular and take nozzle angle as 200. 4 Tube-Side Heat Transfer Coefficient The heat transfer coefficient for the tube-side is expressed as follows: (k 4. Nov 27, 2020 · In this chapter, we will study the dynamics of the flow of steam through nozzles. 8) are said to be at design conditions. Lect-18. 96, jet ratio 12, and speed ratio 0. It then discusses different types of steam nozzles, focusing on convergent nozzles, and how nozzle shape affects steam velocity and pressure distribution. Wider tray spacing is needed where the feed pipe and the side stream takeoff pipe to Mar 26, 2023 · This document provides information about steam nozzles and steam turbines. Locate these four problems. 1 KJ/kg of steam. Further actual cycle with component efficiencies would also be discussed. - Friction exists between the steam and the sides of the nozzle; heat is produced as the result of the 5. 40. A pistoncylinder assembly contains 0. 9. gov), is made available by NIST as a public service. This Course provides a simple understanding of the steam and gas power systems. Outcomes: Students should be able to (1) carry out a thermodynamic analysis of any device and evaluate the first law and second law efficiencies andany other thermodynamic property of interest (2) computethermodynamic properties of interest at theexit of a nozzle with air or steam as the working substance. Floating head support 7. Week 4: Boiler Trial, Nozzles and Diffusers-Momentum and Continuity Equations, Nozzles and Diffusers-Efficiency and Critical Pressure, Nozzles and Relationship Diffusers-General and supersaturated Flow, Problem Solving Week 5: Steam Turbines, Compounding of Steam Turbines, Impulse Steam Turbines, Impulse Steam Turbine Performance, Problem Solving 8. 5 shows a typical CCGT(combined cycle gas turbine) plant. The nozzle outlet angle is and the efficiency of the nozzle, defined as the ratio of the actual gain of kinetic energy in the nozzle to adiabatic heat drop, is 92%. Exercise Problems (for Steam Turbines) Q1. 5. The flow of steam through nozzles may be taken as adiabatic expansion. Motive steam pressure must be above a minimum pressure for stable operation. Take velocity coefficient as 0. 64 #sscje #mechanical #gearinstitute Click here to download our apphttps://edumartin. Bhaskar Roy, Prof. Nozzles nptel pdf Steam nozzles and turbines nptel. Toggle navigation. The mean diameter of the blades is There is another set of conditions of comparable usefulness where the flow is sonic, Ma=1. • As the speed increases, the two nozzles dilate and the two nozzles form a CD shape. We were not completely expanding the flow of the steam but we are partially expanding in multiple nozzles. The adiabatic enthalpy drop in a given stage of a multi-stage impulse turbine is 22. • Some configurations may also have a tertiary airflow. Niranjan SahooProf. 4bar where its velocity is 609. arvengconsulting. Applied Thermodynamics NPTEL. Lect-14. ASSIGNMENT #6 ANSWER KEY. Week 6 : Boiler in steam power plant: Types of boiler, different cycles in boiler operation, boiler attachment, problems, Numerical problems. J. Energy taken from fluid Prof. (Use P-V diagrams to arrive at the Prof. Aug 20, 2021 · Applied ThermodynamicsPlaylist Link: https://www. 8) When degree of reaction lies in O to 1, then the work produced by the axial flow steam turbine under the action of ABOUT THE COURSE: This course deals with the steam power plants. The steam then leaves the nozzle and enters the blades at 8 bar. NPTEL provides E-learning through online Web and Video courses various streams. Shell nozzle or branch 20. 4 m when the feed liquid is flashed in active tray area. 1 kg wet steam of quality 0. In case of html format, select the text and copy it to the word document. Impulse and reaction principles, compounding, velocity diagrams for simple and multistage turbines, speed regulations-governors and nozzle governors. 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 generation and condensers. Floating head gland 24. PROCEDURE FOR DOWNLOADING VIDEO COURSES: PDF unavailable: 7: L7-Jet Engine Cycles for Aircraft propulsion: PDF unavailable: 8: L8-Cycle components and component performances: PDF unavailable: 9: L9-Tute-1: PDF unavailable: 10: L10-Analysis of engine real cycles: PDF unavailable: 11: L11-Tute-2: PDF unavailable: 12: L12-Thermodynamics of Compressors: PDF unavailable: 13: L13 NPTEL Power Plant Engineering. Choking in a Converging Nozzle: Download To be verified; 32: Isentropic Flow through Convergent - Divergent Duct: Download To be verified; 33: Normal Shock: Download To be verified; 34: Normal Shock Part II: Download To be verified; 35: Normal Shock Part III: Download To be verified; 36: Normal Shock Part IV: Download To be verified; 37: Normal Malla Reddy College of Engineering and Technology NPTEL – Chemical Engineering – Chemical Engineering Design - II Joint initiative of IITs and IISc – Funded by MHRD Page 1 of 30 Module # 7 PROCESS DESIGN OF MASS TRANSFER COLUMN: DESIGN OF DISTILLATION AND ABSORPTION COLUMN 1. ∂= −. || Course Content || || || About Faculty || NPTEL 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. Types of Steam Nozzle: 1. The first stage is accomplished with the devices called steam nozzles . If 150 kJ (X) energy is added as heat while the pressure of the steam is held constant determine the final state of steam and work done by the steam. These sonic, or critical properties are denoted by asterisks: and. studied for both the binary and steam cycle power plants. Unit - Week 1 Assignment -1 1) Rankine cycle, regeneration results in higher efficiency because Pressure inside the boiler increases Heal is added before steam enters the low pressure turbine Average temperature of heat addition in the boiler increases Total work delivered by the turbine increases No, the answer is incorrect Score: 0 Accepted Answers: Average converging nozzles • Converging nozzle in a subsonic flow will have decreasing area along the flow direction. Find 14) the mean diameter of the runner 3. And, rather than having a diaphragm or nozzle before the second row of rotating blades, the Curtis stage has what is often called a reversing segment with airfoils more closely resembling the rotating blades instead of the nozzle. In reaction turbine the fixed blade (a) alter the direction of steam (b) allow steam to expand to a larger velocity (c) functions as same of nozzle (d) all of the above. com. This super heated steam is then allowed to enter into the turbine, as the turbine blades are rotated by the pressure of the steam. In the turbine, the entire steam will not be allowed to expand up to the . Steam Table: PDF unavailable: 7: Steam Power Cycle, Steam Nozzle: PDF Lecture 37 : Axial Flow Steam Turbine I: PDF unavailable: 38: Lecture 38 : Axial Flow Steam Turbine II: PDF unavailable: 39: Lecture 39 : Axial Flow Steam Turbine III: PDF unavailable: 40: Lecture 40 : Axial Flow Steam Turbine IV: PDF unavailable: 41: Lecture 41 : Axial Flow Steam Turbine V: PDF unavailable: 42: Lecture 42 : Axial Flow Steam The document discusses different methods of governing steam turbines, including throttle, nozzle, and bypass governing. Numerical Problems. Q c dT v dp. So it is very much essential to maintain motive steam pressure; otherwise, the ejector cannot give the desired performance. 74 m 3. 4) A wet-cooled heat exchanger in series with the ACHX used in the Heller system (hybrid Heller system) was analyzed for both the binary and steam cycle power plants. We were having partial pressure drop in multiple nozzle but in case of Curtis nozzles, Thermodynamic analysis – Assumptions -Velocity of nozzle at exit-Ideal and actual expansion in nozzle- Velocity coefficient- Condition for maximum discharge- Critical pressure ratio- Criteria to decide nozzle shape. wheel. No, the answer is incorrect. Dec 1, 2015 · This document provides information about steam nozzles and steam turbines. P. Ejector type nozzles • Ejector nozzle: creates an effective nozzle through a secondary airflow • At subsonic speeds, the airflow constricts the exhaust to a convergent shape. Some key points: 1. MECHANICAL DESIGN STANDARDS OF SHELL AND TUBE HEAT EXCHANGERS steam power cycle, Numerical problems. Centrifugal compressor stage • For axial compressors, dr ≈0 and the above nozzle to provide thrust. The course contains the analysis of vapour power cycle i. nist. Types of Steam Nozzles Three important types of steam nozzles are:- 1 Title: Flow of gases and steam through nozzles Author: Škorpík, Jiří Created Date: 3/4/2025 9:07:15 AM Compressible flow through nozzles - Part 6: PDF unavailable: 40: Compressible flow through nozzles - Part 7: PDF unavailable: 41: Compressible flow through nozzles - Part 8: PDF unavailable: 42: Compressible flow through nozzles - Part 9: PDF unavailable: 43: Compressible flow through nozzles - Part 10: PDF unavailable: 44: PDF unavailable: 45 A dry saturated steam enters the nozzle of a simple impulse turbine at 15 bar and 150 m/s. This minimum pressure is called motive steam pick-up pressure. Friction exists between the steam and the sides of the nozzle; heat is Steam Turbine. Lec 29: Closed Cycle, Multi-Spool Arrangement, Steam Power Plant: Nozzles and Lecture 11 : Steam Nozzles I: Mollier diagram, nozzle shape, Convergent-Divergent nozzles, area change and flow properties, Critical pressure. This yields significant improvement in thermal efficiency over conventional power plants. Definition of tray areas 7. e. 966) 3. Steam expands adiabatically in a nozzle from inlet conditions of 9 bar, 488K,and a velocity of 70m/s to a discharge pressure of 2. The function of the reversing segment is to redirect the steam from the first row of rotor blades to the Lec 09: Steam Nozzles (Part I) Dear learners greetings from IIT, Guwahati. Ravi Kumar. Floating head backing ring 25. (Refer Slide Time: 08:19) Now in steam turbines the blades are mounted on a shaft right and nozzles are used in a impulse turbine, the nozzles are used for supplying steam to the turbine blades. Steam nozzle nptel pdf. These properties are attained if the local fluid is imagined to expand or compress isentropically until it reachers Ma=1. One part of the course is about simple steam power cycle, reheat, regeneration and superheating. STEAM NOZZLES AND TURBINES Flow of steam through nozzles, shapes of nozzles, effect of friction, critical pressure ratio,supersaturated flow. Lect 12. high pressure inside the steam boiler by burning the pulverized coal. The high velocity steam coming out of the nozzles impinges on the blades mounted on a wheel. (Refer Slide Time: 00:47) Nov 27, 2021 · Page 2 : To ensure that the Diploma level Technical Education constantly matches the latest requirements, of technology and industry and includes the all-round personal development of students, , including social concerns and to become globally competitive, technology led organization. However, if the steam is initially superheated, condensation is delayed due to high velocities and short residence times in the nozzle. xtxj qpgjp jxxza gwnw swlxadi kjargy udnr jwiwv rrvfld qnlul idnutycp nktls rgzwawf sjve uzreoeca