These graphics also allow you to view animated displacements for any stress load case. But my problem is am going to attain a course on piping stres analysis. 06-15 G T wwwuestntegritycom Overview Quest Integrity was requested to perform a piping stress analysis and remaining life assessment of the HP, NOx, IP and LP steam high energy piping (HEP) systems at a Co-Generation Power Station. 00 Low and Intermediate Alloy Steel A 333. 5 per equation 17 from ASME B31. A recuperator captures waste heat in the turbine exhaust system to preheat the compressor discharge air before it enters the combustion chamber. Katmar Software produces engineering and project risk analysis software. The steam-turbine centrifugal chiller requires. •Providing piping load information to issue to the civil department. In this paper an elasto-plastic analysis of a last stage low-pressure steam turbine blade is made by considering a finite element model of the blade with the root alone and also by including the disk. Mechanical drive, single-and multi-stage steam turbine repairs. So that problems such as stress corrosion, cracking and fatigue of steam turbine casing, In this work the thermo mechanical analysis of steam turbine casing will be established by finite element method. Pipe Stress Analysis Adra provide pipe stress analysis as a specific service or as part of our broader piping engineering and design packages. Pancholi3 1ME Scholar 2, 3Professor 1, 2, 3 IITE-Indus University, Ahmedabad, India Abstract — Steam turbine blades are one of the most critical components in power plants Blade is a major. Why ? The reasons one does a pipe stress analysis on a piping system are as follows. k et al  In this work, the contact pressure analysis of steam turbine is validating by using the comparison of hand calculation and. 5 Utility headers Utility headers for water, steam, air, etc. The goal of the research is to develop a technique to assess fatigue life of the blade and to determine the number of startups. Performed and reviewed the flexibility analysis of the critical piping in the scope of the water-steam-Gas cycle (MS, CRH, HRH, LPBP, HPBP, Fuel Gas, Cooling water, extraction and feed-water heater lines, turbine integrals, gland steam, control oil, lube oil systems). Online calculator to quickly determine Steam Flow Rate through Piping. The evaporation process in the evaporator produces wet steam (brine). Piping loads plays the major role in selection of additional stiffening plates on shoe supports. Industrial piping failures can cause serious damage and injuries when the high-energy liquids or gases they carry are suddenly released through a crack or breach in the pipe wall. The condensing type, which is typical of larger turbines, is subject to attracting force due to vacuum pressure on the exhaust side (Table 2). The blades are responsible for extracting energy from the high temperature, high pressure gas produced by the combustor. Heat Recovery Steam Generators (HRSGs) capture the heat created by gas turbines and use it to generate steam, powering the steam turbines which create additional electricity for the facility. Electrical, primary & pneumatic field documentation production and management • Field instruments selection • HazOp analysis of steam and compressor trains system. Various key components including nozzle deformation, stress level, clearance and misalignment of shaft end are examined and, as a result, the bottleneck which should be taken into account for MHI centrifugal compressors and steam turbines is clarified in case of excess piping load. , and probabilistic sensitivity study was done in order to identify the inﬂuence of boundary conditions (BCs) uncertainty on the calcu-lated lifetime consumption for the rotor. A simplified steam cycle7, in this case with a drum-type boiler, is shown schematically in Figure 1. Solar Power Towers. Markets served include energy, oil & gas, and aerospace & defense, among others. Pipe stress analysis is not an accurate depiction of the piping behavior, but it is a good approximation. As per the stress calculation suppose the guide loads are higher than support allowable. Introduction to Expansion Bellows. Mitsubishi Heavy Industries Compressor International (MCO-I) is the leading manufacturer of centrifugal compressors and mechanical drive steam turbines. As the steam turbine spins the generator spins and creates electricity. types and their locations, if required, to meet pipe stress analysis requirements. The algorithm is based on the finite element analysis applied to the resolution of the Fourier heat equation. com, India's No. If the absorption chiller capacity is large, it may require a two-piece shipment that requires assem-bly at the site. Solve your most challenging steam turbine and repair problems. The analysis concludes that the turbine casing develops the higher stress level in startup condition. The steam piping must be designed to allow for expansion and contraction of the steam piping. Discuss with piping lead engineer for requirement of any maintenance flanges (Normally for steam turbine or centrifugal connected lines the maintenance flange is recommended) and include it if required. The special tube element, Pipe 20, was used, which can analyze situations containing plasticity and large displacement. Analysis to Determine Optimum Steam Pressure before Control Valves to Minimize Throttling Losses Gaurav Masiwal #1, P. Basic Pipe Stress Analysis Tutorial Good, relevant and non-overwhelming technical information on pipe stress analysis is hard to come by. Refractaloy 26,Refractaloy-26,R26,R-26 has excellent resistance to relaxation, anti creep property, permanence property and resistance to stress corrosion resistance. The turbine's bearing housings and process casing are independent of each other. (g) Steam and exhaust pipes shall not be led through coal bunkers or dry cargo spaces unless approved by the Commandant. CONTRACT SPECIFICATION STEAM TURBINE GENERATOR PACKAGE -NTA-2 6. Full-scale Operating Model Test Facility Fig. and current piping analysis modeling techniques applied to the piping/header interfaces are also pre- sented. A steam turbine locomotive engine is a steam locomotive driven by a steam turbine. Valve needs to be closed against the effective unbalanced area (which is area of stem) on which steam force is acting in upward direction and spring closes against this force. AUC is the region’s premier English-language University — an essential contributor to the social, political and cultural life of the Arab world. Wall thicknesses are calculated for all pipes which were found very safe for the operating pressure. A well-maintained steam turbine oil with moderate makeup rates should last 20 to 30 years. 4 Super Heater 2. The maximum equivalent stress is 442 N/mm2 and the maximum equivalent strain is 0. ! From household fans to industrial compressors, centrifugal or reciprocating pumps, mixers, crushers etc. Althoughwater induction into the high and intermediate. MSI performs design, analysis, and testing of all types of axial and radial turbines including gas, steam, hydro, and wind. For piping connected to pressure vessels and columns with T<400°C or P<35 kg/cm2g, the pipe bending stress due to thermal expansion at the pressure vessels and columns nozzle shall be limited to 430 kg/cm2 using a rigid nozzle analysis. Complete life-cycle services for the full mechanical & piping spectrum At Stork, we understand the challenges that process industries face today: the need to reduce operational costs, maximize uptime and optimize maintenance efficiency. Elevated temperatures and stress levels combine to accelerate component damages to high pressure turbine rotors, casings, valves, and steam piping. Turbine shaft material has its own natural frequency, when turbine rotates on such a speed that frequency of shaft become close to its natural frequency, machine causes noise & high vibrations because of resonance due to matching of frequency. In this paper, a high pressure inner casing for the new designed solar steam turbine was studied, and the Finite Element Method (FEM) combined with linear elastic material was applied to simulate the transient stress and temperature fields during the daily warm/hot startup process. And, it depends on several conditions I. good help for brginer. Our steam turbines equip 41% of the world's combined-cycle plants, 30% of fossil power plants, and 50% of the world's nuclear power plants. 3 Steam Generator 2. Introduction: In a combined cycle power plant (Fig. Furnace with steam turbine for heat and electricity DON'T EVEN THINK IT!! I am an engineer with a stress analysis on all these parts!! Enjoy the video!! Steam Turbine Generator Start Up. A method of thermal stress and fatigue analysis under triaxial stress conditions is presented. · Flexibility (Stress) analysis. Steam Generators, Gas Turbine Heat Recovery (PTC 4. damping of the piping system, dynamic characteristics (frequency and mode shapes) of the building and supporting soil, and. 2, September 1997 NORSOK standard Page 6 of 17 4. PIPING STRESS ANALYSIS. Unlike gas turbine and reciprocating engine CHP systems where heat is a byproduct of power generation, steam turbines normally generate electricity as a byproduct of heat (steam) generation. 15 New England Executive Park Burlington, MA 01803, USA boris. , Ltd, 1-1 Tanabeshinden, Kawasaki-ku, Kawasaki-shi 210-9530, Japan. In "Steam Turbine Cooling (Step 1)," we learned how to create a basic "coolant loop" - this loop ensures that the Steam Turbine in "Step 2" is kept cool enough to function. "Analysis of Creep and Stress Relaxation Data for Ultra-Supercritical Steam Turbine Materials. casing is well within the maximum allowable stress and validated the comparison of hand calculation of contact Key Words: Steam turbine casing, low cycle fatigue, contact pressure with FEM results. On a 500MW turbine, a burnt area observed on one LP hood was deduced to be due to failure of one of the large expansion bellows in the inlet piping. Volatility analysis of Hangzhou Steam Turbine Co Ltd using a GARCH model. DEE offers high added-value both from a human expertise and technology point of view. STEAM TURBINE ROTOR TRANSIENT THERMO-STRUCTURAL ANALYSIS. Keywords—CAD , FEM, Steam turbine blade INTRODUCTION Steam turbines are major prime movers in thermal power stations. Most turbine casing problems are unexpected and found during normal turbine overhauls. 7- Stress analysis of Exhaust steam lines of steam turbine. Basic Pipe Stress Analysis Tutorial Good, relevant and non-overwhelming technical information on pipe stress analysis is hard to come by. Flow analysis in two-dimensional cascades. Introduction to the morphology, operation and aerothermal analysis of thermal turbomachines. 1 Accessibility and installation. official/ Do like. [email protected] Advancements in modal analysis and testing, fatigue analysis, creep analysis, fracture mechanics, aerodynamic theories, and the development of many new materials and manufacturing processes cleared the path for the design of more powerful, more efficient, and more reliable turbines. Different Steam Trap Arrangements on Steam Headers in Piping System July 13, 2017; Piping Stress Critical Linelist: Format and Use, Responsibilities and Method of Operation July 12, 2017; Piping Stress Critical Lines: Procedure Defining the Basis For Piping Critical Line List July 16, 2017. pipe stress and support design. In those standards seorong pipe stress engineer is required to be able to analyze whether the pipe is connected to the turbine can work safely when the turbine is running or shut down and do not cause damage to the nozzle , FLANGE Leakage: Theory pipe connected to the. Check out this selected list of videos related to piping engineering from youtube. Independent Turbine Consulting, LLC (ITC) was started in 2010 and has quickly filled an urgent industry need for qualified, experienced Turbine Generator Field Engineers to provide Technical Direction, Consulting, and Owner’s Representation…. STEAM FROM HOST TEMPERATURE, PRESSURE ADJUSTMENT RETURN TO HOST TEMPERATURE, PRESSURE ADJUSTMENT RETURN TO ComTest Schematic A-USC Turbine Superheater Header Testing of full scope may require testing at additional facilities in the future Valves Membrane Wall / Superheater Turbine Inlet Conditions 1400ºF, 600 psig, ~130,000 lb/hr - Plan up to 14,000. It is important that inlet steam piping has been properly cleaned to avoid any internal turbine damage. Marco Mucino CCGT Performance Simulation and Diagnostics for Operations Optimisation and Risk Management • The 9th stage bleed system comprises two different piping circuits: the turbine mid frame (TMF) and the power turbine piping systems. Our primary focus is to provide expert piping engineering services. Intertek AIM Engineering: High Energy Piping Symposium in Santa Clara, CA. The steam-turbine centrifugal chiller requires. SERVICE CENTER: SHOP & FIELD TURNKEY OVERHAULS Steam Turbines 1400 MW or smaller Gas Turbines 200 MW or smaller Gear boxes Speed increasers Speed reducers High speed Planetary Stud removal 6’ or smaller Valve seat removal pinned or bolted Horizontal. It contains various stages arranged in a sequence. Introduction to Surface Water Hydrology – Hydrologic Cycle. The major components of a combined cycle plant are a gas turbine, a heat recovery steam generator, a steam turbine, and balance of plant systems. MD&A offers a full array of engineering and steam turbine repair services which determine the root cause of casing/shell failure and we can respond immediately to your needs. I already read a lot about this topic. One-dimensional flow analysis in axial and radial compressors. The course provides a detailed overview of D11 turbine operating sequences and control and protection functions. Our mechanical engineering department offers a wide range of experience in chemical process plant and steel industry layout and design, biofuels production plant design, fossil fuel and waste fired power generation, cogeneration, landfill gas processing and power generation, and utility systems design and upgrade. steam at each stage. But my problem is am going to attain a course on piping stres analysis. On a 500MW turbine, a burnt area observed on one LP hood was deduced to be due to failure of one of the large expansion bellows in the inlet piping. It is an idealized cycle in which friction losses in each of the four components are neglected. Steam and Water Sampling and Analysis System for Fossil Power Plant Power generation boilers use fuels such as coal, oil or natural gas to hear water and therefore produce steam, which is in turn used to drive turbine generators. power plants, the role of the steam turbine is both pivotal and result determining. It also serves as a crossroads for the world’s cultures: a vital, vibrant forum for reasoned argument, spirited debate and understanding across cultures. On leaving the boiler reheated, steam enters the intermediate pressure turbine at 565. Dawson R A T and Neill D A (1969), “Thermal Fatigue Analysis of Turbine Components ”, in International Conference on Thermal Stresses and Thermal Fatigue Berkeley. time in steam turbine casing high pressure (HP) which results in non-uniform strain and stress distribution. Steam turbine rotors bend during operation, but the bearing and supports are designed to keep the static and dynamic forces under control. Throughout the range of sizes and applications, DOOSAN Steam Turbines reflect a consistent philosophy of design. Performed and reviewed the flexibility analysis of the critical piping in the scope of the water-steam-Gas cycle (MS, CRH, HRH, LPBP, HPBP, Fuel Gas, Cooling water, extraction and feed-water heater lines, turbine integrals, gland steam, control oil, lube oil systems). Coal-fired power plants Lignite-fired power plants NuclearpowerplantsNuclear power plants.  Design and analysis of steam turbine blades using FEM by K. The paper is devoted to analysis of state of steam turbine after its failure with pointing out to possible causes of such event. This revision is a complete reanalysis to document the main steam piping analysis and the evaluation of unit 3 as-found spring hanger loads per 3R14 ISI inspection. 4, was used, with the finite element method, to determine the post buckling condition considering the actual geometry of the last two tubes, in the outlet steam zone. " Proceedings of the ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. Check out this selected list of videos related to piping engineering from youtube. All guides, anchors and springs shown on the piping stress analysis report shall be considered, and shall not be added or eliminated without permission of the stress analysis engineer. Due to its rotary motion, the steam turbines are used to drive motors for the electricity generation. It uses a high drag force on the surface of your piping to remove and capture debris from your system. performing piping stress analysis for critical piping systems, initiating equipment specifications for waste heat boilers, pumps, compressor and auxiliaries including installation and commissioning. PROCEDURE FOR STEAM TURBINE ROTORS Henning Almstedt, Principal Expert, Siemens Shilun Sheng, Advisory Expert, Siemens 09:30 THE INTERACTION BETWEEN SHOT PEENING AND EROSION NOTCHES ON LAST STAGE BLADE AEROFOIL SECTIONS: STRESS DISTRIBUTIONS AND FATIGUE RESISTANCE Katherine Soady, Structural Analysis Engineer, ETG, EON 09:50. The ISTAC was established solely to provide direct technical and commercial support to GE’s operating industrial steam turbine customers through GE’s industrial steam turbine sales force. The high speeds and stresses involved necessitate great strength and accuracy of manufacture. If the absorption chiller capacity is large, it may require a two-piece shipment that requires assem-bly at the site. The rate of condensation of the steam in the steam piping network depends upon the type of load (i. For this reason, the steam turbines are specially protected to detect high levels of vibration and cause stop it before serious damage even happen. Roman Kochurov SoftInWay Inc. CONCLUSION Thus the analysis of stress and strain on the turbine shaft due. We deal in all kinds of Stress Analysis including Heat and Mass Transfer and can provide client specific requirements with proper material selection and strengths considered. SteamPlant™ process design software allows you to perform spreadsheet analysis of steam power plant equipment, entire steam power plants, and many other aqueous. He received a bachelor’s degree in energy power systems and automation from Xi’an Jiaotong University, Xi’an, China, in 2013. 2 million kWh Increase in Fuel Use: 13,680 MMBtu/year Equipment Costs: $180,000 (Source: Turbosteam) Installation and Startup Costs: $170,000 Total Installed Cost : $476,735. standards from which equations for a large number of pipe-stress relevant calculations can be found. Maximum principal stress is shown red colour which is around 261. Pumps And Turbines. Compressor Piping Arrangement There are many ways to develop a compressor layout, but certain aspects of these machines dictate how best to approach a design that optimizes operation, maintenance and safety while adhering to economic requirements. The course provides a detailed overview of D11 turbine operating sequences and control and protection functions. com, India's No. Steam Turbine Boresonics. Major projects included: y 1000 Ton Ammonia Plant, Fortier, LA. A piping stress analysis mitigates thermal movements and stresses and typically involves selectively providing flexibility with a mixture of resting supports, guides, line stops, hangers, spring supports, and hold-downs. The steam turbine itself is a devise to convert the heat in steam to mechanical power. The fatigue behavior of a specific inner casing of a 1000 MW supercritical steam turbine was investigated during a complete startup phase. Compressor Piping Arrangement There are many ways to develop a compressor layout, but certain aspects of these machines dictate how best to approach a design that optimizes operation, maintenance and safety while adhering to economic requirements. can have tremendous consequences for piping and equipment as hydrochloric acid aggressively attacks steel and other metals. Piping Load on Steam Turbine (Back Pressure Type). The measurement of the vibration stress was performed by strain gauges on several blades. These gas turbine and steam turbine plants require various auxiliary systems to support gas turbine, heat recovery steam generator, steam turbine and boiler for reliable and continuous operation of plant. Pumps, Turbines and Pipe networks – Moment of Momentum Revisited – Types of pumps and turbines and uses – Pump-pipe systems, networks 2. Piping Nomenclature & Components 4 1. Phase I consisted of pipe stress analysis and hanger design. the design of steam turbine enables more efficient use of fuel and results in reduced cost. Thermal stress limiter for 13K215 steam turbine retroﬁt in Połaniec Power Plant, Poland K. It is critically important to get masses reasonably accurate and get boundary conditions exactly correct for a decent dynamic result. -select expansion joints - define. The Heat Recovery Steam Generator (HRSG) is a vital part of a Combined Cycle (CC) plant, capturing the exhaust heat from the combustion turbine and converting that into steam. The turbine hot reheat steam stop/control. Our steam turbines are the result of continuous, evolutionary development, to maximise efficiency for lower fuel consumption and carbon emissions. The heat exchangers use heat produced by the nuclear reactor to make steam at very high temperatures. Thermodynamics of steam: steam tables; saturated and superheated steam; dryness fraction; specific volume; specific heat of superheated steam; heat mixtures; throttling and separating calorimeters; internal energy of steam, enthalpy. The sources treated herein specifically are those found to be most frequently involved in causing damage to turbines. Division of steam flow: On ships where space is a consideration, the LP turbine is designed to be a dual flow turbine. GOLOSHUMOVA & YU. Response spectrum analysis gives estimation of internal forces and displacements due to seismic excitation. Answer: The basic idea of an impulse turbine is that a jet of steam from a fixed nozzle pushes against the rotor blades and impels them forward. The units ranged in size from 600 HP to 890 MW with operating hours ranging from 8,000 to 340,000, and new to 62 years of operation. Use 316 stainless steel tubing with Swagelok fittings between the discharge of all condensate pumps and the connection at the utility tunnel. Failure mode and eﬀect analysis (FMEA) of steam turbines was con- ducted over twenty years in the electric power industry; results are shown in Table 2. POWER Engineers has extensive experience in power facilities operations and maintenance and we focus on safety, environmental compliance, reliability, thermal performance and improved economics. GE’s D-Series is a modular product platform for utility reheat steam turbines in the 100 to 1,200 MW power output range. The high speeds and stresses involved necessitate great strength and accuracy of manufacture. A specific outer cylinder of a 1000 MW supercritical steam turbine was used in this study, and the interaction of the creep and fatigue behavior of the outer cylinder was numerically investigated under a startup–running–shutdown process. CAESAR II evaluates the structural responses and stresses of piping systems to international codes and standards. Lianlian Wu, Yoichi Takeda, Hiroki Morita, Tetsuo Shoji, A Comparison of Stress Corrosion Cracking Susceptibility of Steam Turbine Blade Materials for Geothermal Plants, CORROSION. Typically the turbine manufacturer will tell you that their springs, supporting the valves and their piping were chosen (by them) such that they support exactly the weight of their valves and their pipe (up to and including the valves). PIPING ANALYSIS AN LIFE ASSESSMENT OF STEAM PIPEO uest ntegrity ev. Undershot waterwheel / water turbine works when running water hit the wall of blades located at the bottom of waterwheel. The 170,000-square-foot building provides generator repair, machining services, reverse engineering, rotor welding, high speed balance, and steam and gas turbine repair of steampath components. Highly-reliable Design Technology of Steam Turbine for Nuclear Power Plant 104 in the turbine and the vibrational stresses due to the forces induced by the steam acting on the blade. These are also called balance of plant systems. 2 (May/June 2014 issue) Abstract Piping systems are important means of fluid transportation and we can find their use in several industrial and. APEX designed and issued specifications for a 650kW Steam/Turbine Generator set for the University. In Section 1, steam turbine operating conditions are described including the steam cycle, the chemical control of the steam/water circuit and the distribution of temperature, pressure and steam wetness in the turbine. Correct water/steam cycle chemistry is also critical. Introduction to Surface Water Hydrology – Hydrologic Cycle. CAESAR II Statics Two. However, steel was not yet strong enough to hold up to the stress of such rapid rotation. Material fatigue properties are determined through experimental testing of used blade material X22CrMoV12-1 along with statistical modelling using regression analysis to interpret the stress-life diagram. CCI 100DHP™ DRAG. , and Shingledecker, John P. In addition to evaluating a piping system's load capabilities, this pipe stress analysis software has other functions:. Program system ROHR2 for pipe stress analysis *****www. This is surprising since they form an inte-. Discuss with piping lead engineer for requirement of any maintenance flanges (Normally for steam turbine or centrifugal connected lines the maintenance flange is recommended) and include it if required. Moreci, MS, PMP, Principal Consultant, TG Advisers, Inc. High Cycle Fatigue; Low Cycle Fatigue; Stress Corrosion Cracking; Solid Particle Erosion; Water Droplet Erosion. This model was imported in ANSYS-11 for Finite Element Analysis. A reaction turbine utilizes a jet of steam that flows from a nozzle on the rotor. Chandra Sekhar Reddy Department of Mechanical Engineering University College of Engineering Osmania University Hyderabad – 500 007, India ABSTRACT Rotor is an very important part in the machines, especially in the rotating machines like gas and steam turbines. Pumps, Turbines and Pipe networks – Moment of Momentum Revisited – Types of pumps and turbines and uses – Pump-pipe systems, networks 2. The flexing portions of the construction subject to high stress are in a weld-free location, while the main weld connecting the nozzle box to the turbine shell is located to prevent leakage into the power station should a defect occur. The steam entering the turbine is at 30 6degree centigrade and 6. If the absorption chiller capacity is large, it may require a two-piece shipment that requires assem-bly at the site. Steam consumption within the pipe system needs to be judiciously monitored and controlled. Table 1 lists typical examples of burst accidents of steam turbine rotors experienced peviously in Japan and foreign countries. Engineering Analysis Stress and Strain Equations and Calculations Structural Analysis, Thread Stress Area, Machine Lever Equations and Calculations, Friction Equations, AGMA Gear Design, Strength of Materials. standards from which equations for a large number of pipe-stress relevant calculations can be found. Leonid Moroz SoftInWay Inc. Tech (Thermal) Student Department of Mechanical Engineering Adarsh College of Engineering Chebrolu, Kakinada. Analysis to Determine Optimum Steam Pressure before Control Valves to Minimize Throttling Losses Gaurav Masiwal #1, P. The first lesson explores the Piping Codes. Non-destructive testing (NDT). The overall. 07MPa, 346°C for a low-pressure one. Pumps oilers Steam turbines ogeneration ombined heat and pow-er systems Pressure vessels Tanks Piping ombustion turbine systems Heat exchangers ooling towers. Experimental Validation of Steam Turbine Control Oil Actuation Systems Transient Behavior  Andrea Tradii; Stefano Rossin; and Riccardo De Paolis, GE Oil and Gas T his work presented at the 30th International CAE Conference in Verona, Italy demonstrates dramatically the value of simulating the multi-physics of the fluid-mechanical. A velocity drop in an impulse turbine occurs only in the moving blades, therefore to obtain more than one velocity drop across an impulse turbine, there must be more than one row of moving blades. com***** This movie explains how to Insert expansion joints into a piping system using ROHR2. and current piping analysis modeling techniques applied to the piping/header interfaces are also pre- sented. The Steam Turbine Technical Training Center was established in July 2014 with the aim of systematically training engineers to take on more difficult levels of field service jobs for steam turbines. Given the multiple materials flowing in and out, generators contain complex systems of tubing and other componentry that face intense stress and high pressure during operation. I HV TO ENCOUNTER VARIOUS PIPE LENGHTS WHICH ARE 6M, 7M, EVEN 11M. Highly-reliable Design Technology of Steam Turbine for Nuclear Power Plant 104 in the turbine and the vibrational stresses due to the forces induced by the steam acting on the blade. manner the peak stress in disk slot reduced to 1,102 Mpa from 1,660 Mpa. 1 Principles of steam turbines start-ups Steam turbines are being started based on operating instructions developed by turbine manufacturers and constituting an integral part of start-up instructions of a steam unit. A failure analysis was performed to determine the occurrence of cracking in an AISI 410 stainless steel airfoil from a steam turbine. API Standard 612 - Special Purpose Steam Turbines for Petroleum, Chemical, and Gas Industry Services. Flat Rectangular Uniform over entire plate plus uniform over entire plate plus uniform tension P lb=linear in applied to all edges Stress and deflection Equation and Calculator. Scope included development of the P&ID's, mechanical specifications, general arrangement drawings, piping drawings, and performing piping stress analysis. Because the direction of force from water flows on sideways then, the energy received by the Tub waterwheel is the potential and kinetic energy. A PT&P field service representative arrived the next day to survey and inspect the system. Experimental Validation of Steam Turbine Control Oil Actuation Systems Transient Behavior  Andrea Tradii; Stefano Rossin; and Riccardo De Paolis, GE Oil and Gas T his work presented at the 30th International CAE Conference in Verona, Italy demonstrates dramatically the value of simulating the multi-physics of the fluid-mechanical. Increase your productivity and improve quality control with an intuitive modeling environment and advanced analysis capabilities. Sleeper support shall be adopted to abate the vibration of piping and shall be not connected or closed to compressor shelter to prevent sleeper piping vibration is transmitted to shelter. Metallurgy, corrosion, stress analysis, fracture mechanics, and nondestructive evaluation are combined to identify mechanisms and root causes of failure. Due to problems of condensation of steam or draining of condensate, this type of cleaning has to be used with the utmost care, as it can potentially create. Project size ~ 4 M€. 2017;73(2):125-137. The internal (primary) steam pipe conveys steam from the boiler outlet to the high pressure steam turbine, with an external (secondary) steam pipe conveying the counter-cooling steam. Piping system is analogous to blood circulating system in human body and is necessary for the life of the plant. Stress analysis of stress critical lines and support marking for all the isometrics. Our primary focus is to provide expert piping engineering services. Mechanical Dynamics & Analysis (MD&A) assessed both the current condition and remaining life of a 1968 Vintage fossil-fired 445MW D8 steam turbine following 700 starts and 345,000 operating hours. 1), electricity is produced by two turbines, a gas and a steam turbine. Excessive Stress The total stress at any location of the blade is sum of the centrifugal tension, centrifugal bending, steady steam bending and the alternating bending. 0 FEEDWATER ROUTING AND RUPTURE EVALUATION Table 4-1, Stress Values -- Feedwater Piping From Auxiliary FDW Pumps "A" & "B" 24 Table 4-2, Stress Values -- Feedwater Piping From 4" Auxiliary FDW Pump Discharge to Anchorq 26 Table 4-3, Stress Values -- Turbine Bldg. and thermal influences during their operation. • Collateral Damage –Cold slug of Hot Reheat steam or condensate caused a water hammer event due to failed non-return valve on Cold Reheat line. The requirement of the high operational flexibility of combined cycle power plants creates a need for utilization of systems for monitoring and control of lifetime. This test facility is used. For stress analysis a commercial software, ANSYS 5. Intergranular stress corrosion cracking (IGSCC) is stress corrosion cracking where the grain boundaries of a susceptible material are cracked due to stress and an agressive environment [1-3]. Flange Analysis, Spring Hanger Selection, Rotating Equip, TTA) in AutoPIPE. Steam Line Modifications - Install approximately 3,100 feet of 24" diameter steam piping including pipe stress analysis, structural analysis, tie-ins, and multiple structural pipe rack revisions. Performed 3D design of equipment, structures and piping, pipe stress analysis, pipe support detailing and generation of GA drawings, isometrics and Bill of Materials for the Steam Turbine / Gas Turbine / Boiler Feed Pump / Gas Booster Compressor areas of 180+ captive / combined cycle / fossil power plant projects. Based on the results of the method HAZOP hazard analysis and risk management in the steam turbine, it was concluded that the most dangerous conditions in the steam turbine is a known high pressure conditions of pressure transmitter on node HP turbine, Turbine IP, LP turbine and LP turbine 1 to 2 cause the turbine over speeding as mentioned in. Cold start-up analysis for IP steam turbine rotor is performed in Ref. Vibration in steam turbines The vibration in a steam turbine is not a fault in itself , but a symptom of a problem that exists in the turbine and that could lead to serious consequences. Reply 2: API 612 continues to require a hydrotest safety factor of 1. Refractaloy 26,Refractaloy-26,R26,R-26 is a material can be applied in turbine engine blade and fastener. A steam turbine system includes pieces of equipment that are connected to the steam turbine itself by piping that carries the working fluid. Benzene Neshap - Multiple sump pumps, piping systems, and vapor controls to reduce benzene emissions from plant, process sewer system. com, India's No. Stress analysis. Phase II included the design and specification of a new De-superheater. The first article provided a primer on the basics of the thermal expansion and contraction found in industrial facilities. com: Steam Turbine Rotor Bore Fracture Evaluation Pipe Stress Analysis: Finite Element Analysis Using Fortran: Downloads. turbine blade/disc failures and flow-accelerated corrosion (FAC). Piping Nomenclature & Components 4 1. The analysis was performed on the basis of the analysis of the chemical composition and microstruc-. Schematic diagram of the coated steam dual pipe system for use in advanced ultra-supercritical power plant. Inertia load is the constant load that will cause creep failure. Mechanical Dynamics & Analysis Turbine Generator Repair Facility is centrally located in St. the stress engineer should follow for theoretical alignment checking for all Rotating Equipments like Centrifugal Compressor, Steam Turbine, Centrifugal Pumps, Gear Pumps etc, Few procedures are to be followed as mentioned below while carrying out static analysis: 1. com, India's No. Steam turbines and gas turbines are rotating machines that extract energy from pressurized steam and/or from combustion gases. 배관응력해석(Piping Stress Analysis) 1. INTRODUCTION Interactions between steam piping and boiler outlet headers are not always fully considered in the original design or retrofit of these fossil plant components. The steam turbine exhaust flow of the ATS plant necessitates the use of a double-flow LP exhaust. 0 0 50 100 150 200 250 300 350 400 450 Seconds 2. Steam hammer in turbine piping systems. 5 safety factor in API 612 is planned at this time. turbine vendor was strain induced by the piping loads. " Proceedings of the ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. Piping Stress Analysis forum. State of Steam Turbine Rotor after Failure. This will create stress upon certain areas within the distribution system, such as pipe joints, which, in the extreme, could fracture. Turbine shaft will be connected to driven mechanism directly or with the help of gear reduction. Pipe Sizing by Pressure Loss; Pipe Sizing by Velocity; Pipe Sizing for Steam Vent; Pressure Loss through Piping; Steam Velocity through Piping; Steam Flow Rate through Piping; Economical Insulation Thickness; Valves and Orifices. Clear Analysis & Concise Diagnosis of Metals in Critical Applications. Failure Analysis & Prevention. * Expertise in- Trouble shooting of Turbine (Piping), Resolving Flange alignment/parallelism issues (Successfully Completed-20+ Projects) * Site visit inspection for preparation of support drawings * Piping stress analysis (Stress Analysis- Thermal/Flexibility), Pipe rack and Structural analysis, Preparation of spring hanger purchase. The fatigue behavior of a specific inner casing of a 1000 MW supercritical steam turbine was investigated during a complete startup phase. k et al  In this work, the contact pressure analysis of steam turbine is validating by using the comparison of hand calculation and. Cleaning by steam blowing is carried out essentially for steam circuits (i. Mechanical Engineer experienced in Piping engineering, pipe stress analysis, pipe supports design, steady state and transient hydraulic analysis. 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SERVICE CENTER: SHOP & FIELD TURNKEY OVERHAULS Steam Turbines 1400 MW or smaller Gas Turbines 200 MW or smaller Gear boxes Speed increasers Speed reducers High speed Planetary Stud removal 6' or smaller Valve seat removal pinned or bolted Horizontal. Basic conceptual design of Varma Turbines - There are four types of varma turbines 1. com SEEKING ENGINEER LEVEL ASSIGNMENT PIPING STRESS ANALYSIS WITH A LEADING HIGH GROWTH ORIENTED ORGANIZATION. Blade Design and Analysis is a solid professional reference for any stakeholder in Steam Turbine Engineering; from the Turbine Blade Engineer to the Process Plant Reliability expert. Model Comparisons. 2 Basic Consideration in the Analysis of Power Cycles 2. 3) Responsibilities included meeting all quality, scope of work, schedule requirement particularly as it applies to Piping stress Engg. The function of piping flexibility or stress analysis has, for the most part, been delegated to the computer particularly in the case of high temperature, high-pressure piping systems. -this design allows some flexibility in turbine load capacity, with extra steam being added if the load demands more power from the turbine-commonly used in gas turbine combined cycle power plants to extract maximum heat from the gas turbine exhaust >IP steam injected into gas turbine combustor to reduce temperature for NOx control. Piping system is analogous to blood circulating system in human body and is necessary for the life of the plant. As the steam turbine spins the generator spins and creates electricity. 5 shows a photograph of the full-scale operating model test facility. What are the main considerations and what types of analysis required for steam turbine. We have an extensive domain knowledge in the area of Engineering Simulation analysis, which encompass areas of Finite element FEA consulting, CFD consulting, Stress Engineering Services, Pipe Stress Analysis, and Acoustic Consulting. The heat exchangers use heat produced by the nuclear reactor to make steam at very high temperatures. Low pressure steam turbine blade, linear stress analysis, bilinear stress analysis, low cycle fatigue, creep, ANSYS. 5 Utility headers Utility headers for water, steam, air, etc. · Flexibility (Stress) analysis. US Navy NSWCCD-SSES Steam Systems Branch.