Relevant bibliographies by topics / Steam turbine service

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Steam turbine service'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Steam turbine service"

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Shin, C. S. "Continual service reassurance of steam turbine blades." Engineering Failure Analysis 3, no. 2 (June 1996): 95–102. http://dx.doi.org/10.1016/1350-6307(96)00005-2.

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Ding, Yu Feng, and Yu Qun Zhang. "Steam Turbine Remote Maintenance Service Support Technology Based on RFID." Applied Mechanics and Materials 268-270 (December 2012): 1774–78. http://dx.doi.org/10.4028/www.scientific.net/amm.268-270.1774.

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A framework for supporting steam turbine remote maintenance support service is put forward in this paper. A RFID tag is designed to identify steam turbine. All monitored parameter data is scored in the datacenter of steam turbine cloud platform. User can get all relative data based on the unique RFID tag of steam turbine. The system can also provide fault diagnosis and maintenance solution service for steam turbine based on the fault request. The maintenance solution is given on the basis CBR (case-based reasoning) with rough set theory. A prototype system is developed to demonstrate the feasibility at last.
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Sanneman, Bruce N. "Pioneering Gas Turbine-Electric System in Cruise Ships: A Performance Update." Marine Technology and SNAME News 41, no. 04 (October 1, 2004): 161–66. http://dx.doi.org/10.5957/mt1.2004.41.4.161.

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Recent marine projects have extended the range of applications for GE's LM aeroderivative gas turbines in commercial marine markets. The world's first all gas turbine-powered cruise ship, GTS Millennium, entered service in June 2000. The in-service performance of the combined gas turbine electric and steam system (COGES) will be discussed further in this paper.
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Cui, Lu, and Peng Wang. "Validation of a Phenomenological Lifetime Estimation Method with Biaxial Experiments at High Temperature." Advanced Materials Research 602-604 (December 2012): 2251–54. http://dx.doi.org/10.4028/www.scientific.net/amr.602-604.2251.

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Modern 9-12%Cr steels are widely used for steam turbine components. For the design optimization and lifetime estimation of steam turbines, it is very important to investigate and describe the deformation as well as crack initiation behavior at critical location of steam turbine components under multiaxial service-type loading conditions. In this paper a phenomenological lifetime estimation method was validated by multiaxial loading. The applicability and reliability of this lifetime estimation model was confirmed by a recalculation of biaxial creep fatigue tests performed on cruciform specimens of rotor steel X12CrMoWVNbN10-1-1 successfully.
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Viswanathan, R., and S. M. Bruemmer. "In-Service Degradation of Toughness of Steam Turbine Rotors." Journal of Engineering Materials and Technology 107, no. 4 (October 1, 1985): 316–24. http://dx.doi.org/10.1115/1.3225825.

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The toughness of steam turbine rotors degrades with time of service exposure in the range of 340°–540°C. There is a need to estimate the toughness degradation that has occurred in order to assess the reliability, remaining life, and further operational parameters for the rotors. Since it is not possible to take large specimens from operating rotors to evaluate the rotor toughness, nondestructive or relatively nondestructive techniques involving removal of small samples are needed. To serve this need, several techniques such as composition based correlations, grain boundary analysis by Auger electron spectroscopy, analytical electron microscopy, and secondary ion mass spectroscopy, chemical and electrochemical etching, eddy current measurements and mechanical testing of miniature samples have been explored by the electric power industry. This paper presents an overview of the principal results emerging from the various on-going projects in this area.
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Huang, S. H. "The Reliability Estimation of the Low-Cycle Fatigue Life of Steam Turbine Rotors." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 207, no. 1 (February 1993): 49–53. http://dx.doi.org/10.1243/pime_proc_1993_207_006_02.

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In this paper, a technique to define the low-cycle fatigue life damage and its cumulative effects on steam turbine rotors using the reliability estimation method is presented. Because of the dispersion of external load spectra and the fatigue strength of materials, the dispersion coefficient is defined to describe the probability relationship between reliability and life damage. The definition of the dispersion coefficient differs according to the probability distribution of service life. The situation for both the logarithmic normal distribution and the Weibull distribution is analysed in this paper. Using this technique, the internal relationship between the crack initiation life damage and the crack propagation life damage is investigated under any selected reliability. It is helpful for managers of power stations to evaluate the state of turbines and to manage the service life of turbine rotors. This technique is useful in evaluating the residual fatigue life of rotors and determining the optimal detecting date. An example is presented in the paper and some valuable results are obtained.
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Hendelman, J. C., and R. J. Bazzini. "The Refurbishment of Rotating Steam Turbine Blades." Marine Technology and SNAME News 27, no. 06 (November 1, 1990): 356–60. http://dx.doi.org/10.5957/mt1.1990.27.6.356.

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The remanufacture and repair of steam turbine parts continues to be a cost-effective and viable alternative to replacement with new parts in many cases, providing improved scheduling flexibility in situations where replacement part deliveries cannot support maintenance schedules, and where the cost of replacement parts is not justified when alternatives exist. The extension of these repair techniques to rotating steam turbine blades was a logical extension of the technology available to turbine owners and operators. With turbine blade failures remaining the leading cause of turbine failures in the United States, and 75 percent of all blade failures occurring in the L-0 and L-1 stages, many blades not previously considered candidates for repair are being reevaluated for refurbishment. Although the power generating utilities have led the way in turbine part "salvage" via repairs, the application of the techniques described herein are fully applicable to marine steam propulsion units. These being variable-speed machines, operation off "design point" is more common and blade service is more severe in most cases.
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Mayer, K. H., W. Prestel, D. Weber, and M. Weiss. "In-service inspection and defect assessment of steam turbine rotors." International Journal of Pressure Vessels and Piping 66, no. 1-3 (January 1996): 281–92. http://dx.doi.org/10.1016/0308-0161(95)00102-6.

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Bulloch, J. H. "Service embrittlement trends in large CrMoV steel steam turbine bolts." Theoretical and Applied Fracture Mechanics 24, no. 1 (November 1995): 79–92. http://dx.doi.org/10.1016/0167-8442(95)00033-b.

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Zhang, Di, and Yong Hui Xie. "Study on Service Life of Last Stage Blade with Damped Structure in Large Power Steam Turbine." Advanced Materials Research 44-46 (June 2008): 803–8. http://dx.doi.org/10.4028/www.scientific.net/amr.44-46.803.

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Blade which transfers thermal energy of steam into power, is a basic component in steam turbine. The reliability of blade is heavily influenced by the operating environment. The rotating blade experiences large inertial load and the wake of nozzle flow impose large variations of aerodynamic load on blade, in addition, the last stage blade is also affected by corrosion, so accidents of blade happen from time to time. Preventing blade failure has become one of the major objectives of turbine design and in-service maintenance. It is said that the reason for most of blade failure is fatigue fracture. In this study, a synthetical numerical model has been developed to evaluate service life of blade. At first, a numerical model to analyze the excitation force, dynamic frequency and dynamic stress of steam turbine blade has been developed, based on the results of dynamic stress analysis, a model to evaluate the service life of turbine blade has been developed. Many factors such as manufacturing technology of blade and erosion operating environment are considered to get more accurate results for service life of blade. At last, a last stage blade group of a large power steam turbine is analyzed in detail. It is shown clearly that the numerical model can give some rational quantitative results, and it is suitable for its engineering application to the improvement of the blade reliability.
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Dissertations / Theses on the topic "Steam turbine service"

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Hlavinka, Miloslav. "Rekonstrukce protitlakové parní turbiny." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231818.

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Tématem diplomové práce je revize parní turbíny Mitsubishi a výpočet utahovacích momentů šroubů dělící roviny. Tato práce je rozdělena do několika částí. Úvodní část práce obsahuje seznámení s rozsahem prováděných servisních prací na parních turbínách. Poté je zde samotná revize parní turbíny Mitsubishi. Tato revize je dělena podle jednotlivých komponent turbíny. Poté je zde stanoven seznam nutných oprav a také seznam doporučených oprav pro příští odstávku. V další části je zde shrnut výpočet utěsnění dělicích rovin a to s nebo bez odlehčení. Dále jsou rozebrány nejčastěji používané typy závitů spojovacího materiálu parních turbín. Hlavní částí práce je samotný výpočet utahovacího momentu. Výstupem této práce je poté program pro výpočet utahovacího momentu v programu Excel.
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Books on the topic "Steam turbine service"

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Da gong lü dian zhan qi lun ji shou ming yu ce yu ke kao xing she ji. Beijing Shi: Zhongguo dian li chu ban she, 2011.

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Book chapters on the topic "Steam turbine service"

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Müller, Patrick, Michael Muschiol, and Rainer Stark. "PLM-Based Service Data Management in Steam Turbine Business." In Product Lifecycle Management. Towards Knowledge-Rich Enterprises, 170–81. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-35758-9_15.

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Xie, Yong Hui, Di Zhang, and Zhen Ping Feng. "New Fatigue Model for Service Life Assessment of Last Stage Blade in Steam Turbine Based on Liquid Corrosion and Dynamic Stress." In Advances in Fracture and Damage Mechanics VI, 613–16. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-448-0.613.

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Tatum, Sarah, Carwyn Frost, Daphne O’Doherty, Allan Mason-Jones, and Tim O’Doherty. "Modelling Tidal Stream Turbines." In Renewable Energy in the Service of Mankind Vol I, 351–63. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-17777-9_32.

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Mayer, K. H., and H. König. "Damage Assessment of Service Stressed Nimonic 80A Steam Turbine Bolts." In Performance of Bolting Materials in High Temperature Plant Applications, 343–55. CRC Press, 2020. http://dx.doi.org/10.1201/9781003070399-33.

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Addo-Tenkorang, Richard, and Ephrem Eyob. "Engineer-to-Order." In Customer-Oriented Global Supply Chains, 112–28. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-4666-0246-5.ch007.

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General Engineer-to-Order (ETO) design of product capacity projects among many others, includes design for large electric machine, huge centrifugal pumps, diesel/natural fuel power plant engines, steam turbine, boiler, ship power, et cetera. ETO is basically a product development process, which starts with a product specification and finishes with an engineering design as its deliverable. It rarely includes manufacturing processes. The main drawback is with issues concerning its long lead-time. Research shows that an excessive lead-time is more often than not caused directly or indirectly by factors related to the design phase. This chapter thus, endeavours to introduce a best practice concurrent approach for reducing the lead-time at an engineer-to-order product design/development stage by seeking to integrate business information technology systems in the design and operational phases. It also introduces a new concurrent best practice approach by way of seeking to integrate other related business systems, e.g., (Enterprise Resource Planning (ERP)) such as (Enterprise Service Architecture (ESA) application processes with Service-Oriented Architecture (SOA)) as a platform for applications and processes for effective communication. Furthermore, the chapter presents and discusses a model of classical concurrent engineering (CE) ETO operational process. ETO key elements, ETO success factors, and series of state of the art ETO classical ERP engineering design tools, as well as the “best practice” product life cycle are all discussed.
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Conference papers on the topic "Steam turbine service"

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Peters, Daniel T., Eric Jones, Sean Hastings, and Steven Greco. "Turbine Steam Chest Life Assessment." In ASME 2010 Power Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/power2010-27248.

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The optimal approach to condition assessment, regardless of the component involved, is to use a programmatic approach, and steam chest condition assessment is no exception. Steam chests typically vary significantly from one to the next in shape and complexity; consequently, stress distributions vary and damage occurs first and is most advanced at the high stress regions, accordingly. One of the most significant cost drivers in an overall program is an ongoing implementation of NDE that has little technical justification, i.e., implementing NDE as the means of identifying the high stress locations via flaw detection. Keep in mind that flaws can manifest themselves at both macro and micro levels. Therefore, inspection typically includes surface inspection using liquid dye penetrant and/or magnetic particle inspection for macro damage and metallographic replication for micro damage, plus ultrasonic inspection for volumetric inspection of subsurface flaws and flaws at otherwise inaccessible surfaces. In a programmatic approach, the first step is to accurately understand the stresses of the steam chest to determine the appropriate areas requiring examination and monitoring. Then, only after identifying the critical areas on the steam chest, attention turns to defining the optimal techniques and procedures to examine the areas identified. By implementing a focused inspection that concentrates on the critical areas, as opposed to a shotgun approach, the scope, cost, and the frequency of the inspection is significantly reduced. The programmatic approach identifies these critical areas up front and helps to determine the best method for their inspection. The best method is most often dictated by access constraints and limitations at the region of interest. In recent years, significant strides have been made in the use of advanced UT techniques such as linear phased array (LPA) and annular phased array (APA) ultrasonic inspection for sizing cracks in some of the least accessible areas. In many cases, once identified, the damage can subsequently be monitored periodically with only the local removal of insulation. The disassembly of the valve is not required on an on-going basis, nor is full insulation removal in most cases. Finally, once damage has been identified and characterized, be it early form cavitation through to defined cracks, the model used initially to identify the inspection locations is then used to assess the damage in terms of growth rates and failure potential. This information is utilized for a complete Fitness for Service Assessment of the unit. This would include definition of re-inspection intervals, monitoring requirements, and possibly to assess repair/replace options and schedules. These assessments meet the requirements of current Standards in Fitness for Service Assessment. The robust life assessment program presented here includes: 1. upfront analysis of the steam chest to identify problem areas including modeling of the valve, 2. focused baseline inspection of identified potential problem areas, 3. Fitness for Service Analysis utilizing focused baseline inspection results, 4. continued monitoring of critical areas of the valve. This programmatic approach results in a focused, optimized integrity assessment program at minimized cost.
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Ulbrich, Artur, Edwin Gobrecht, Michael R. Siegel, Erich Schmid, and Pamela K. Armitage. "High Steam Turbine Operating Flexibility Coupled With Service Interval Optimization." In International Joint Power Generation Conference collocated with TurboExpo 2003. ASMEDC, 2003. http://dx.doi.org/10.1115/ijpgc2003-40072.

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Historically steam turbine operations were designed for a market that was typically either base load or intermediate duty load operation. The optimal steam turbine start-up profile was established using the maximum allowable component stress and therefore optimizing service time consumption. Over the last few years, the market requirements have changed significantly. The market requires plant start-up flexibility with the ability to accurately predict start-up time, and reliably meet the start-up time. Applying the historical steam turbine start-up philosophy either limits the operating flexibility of the plant or exceeds steam turbine allowable stresses increasing service time consumption. Innovative concepts are being presented on how steam turbines can achieve reduced start-up times while minimizing service time consumption thereby improving availability. These concepts allow the customer to be able to accurately predict start-up times and reliably meet the dispatch bid. Therefore, an economic calculation may be performed to determine the most effective start-up mode. This economic calculation will evaluate the impact to service life (inspection and test intervals) versus the benefits of power generation. The new concepts provide one solution for base load, intermediate duty load operation, and plants requiring fast start up capability. The new market needs for flexible operation including fast start-up times require plant operability enhancements [1]. Some of the operability enhancements that can be implemented include: • steam turbine stress controller and stress monitoring systems which allow a selection of the start-up mode determining the start-up time, thermal stress and service time consumption; • high level of plant automation; • plant systems designed to provide steam conditions necessary for selected start-up mode. The benefit of these solutions will be presented by means of examples from recently modified power plants. It is possible to achieve a significant improvement in the plant operation and start-up with low costs.
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Gao, Junru, Xin Meng, and Yajun Sun. "Signal extraction and fault identification of steam turbine vibration." In 2014 5th IEEE International Conference on Software Engineering and Service Science (ICSESS). IEEE, 2014. http://dx.doi.org/10.1109/icsess.2014.6933610.

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Elward, Kevin M., David A. Flodman, and Richard A. Symonds. "Massive Steam Injection on an MS6001B Gas Turbine in Cogeneration Service." In ASME 1992 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/92-gt-373.

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A recent field test has completed the qualification of the MS6001B combustion system for operation on gas fuel with steam injection for NOx control to 25 ppmvd. Recently, dry operation on gas fuel at 25 ppmvd has been achieved on the MS6001. To meet the immediate need for running at the 25 ppmvd NOx level, increased steam injection was investigated. Laboratory testing on a single MS6001 combustor indicated the potential for achieving NOx levels as low as 25 ppmvd through the use of steam injection. This paper describes the lab testing and the field test of the MS6001B, and includes data on emissions, steam flow requirements, and dynamic pressure levels. The MS6001B is now available at 25 ppmvd NOx with steam injection on gas wherever this level is required. This system provides an easy retrofit to those gas fired, steam injected units where installation of the dry 25 ppmvd NOx system is not immediately feasible.
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Zhao, Nailong, Weizhe Wang, Hui Hong, Richard Amankwa Adjei, and Yingzheng Liu. "Mechanical Behavior Study of Steam Turbine Casing Bolts Under In-Service Conditions." In ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-56723.

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In order to avoid the failure of bolted joints used on ultra-super critical steam turbine inner casing, their mechanical behavior should be strictly assessed, especially under the in-service conditions with steam temperature and pressure fluctuations. In this study, a 3D bolted inner casing is modeled using the commercial finite element software ABAQUS. The Norton-Bailey constitutive model and strain-life–based Manson-Coffin equation are applied to study the mechanical behavior of the bolted inner casing under in-service conditions. The results demonstrate that the inner casing could exert significant influence on the bolts by conduction, structure restriction and thermal expansion difference of the materials. The temperature and von Mises stress of the bolts experience continuous fluctuations during the steady state operation phase due to the constant variation in the steam temperature and pressure, and the alternative stresses give rise to fatigue damage of the material. The steam temperature and pressure fluctuations decline the fatigue lifetime of these high-temperature bolts in long-term operation, which should be taken into account in the design.
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Beasley, O. W., E. C. Hutchins, P. R. Predick, and J. M. Vavrek. "Induced Draft Fan Innovation for Heat Recovery Steam Generators." In ASME 1993 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/93-gt-069.

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A first of its kind, induced draft (ID) heat recovery steam generators (HRSG) have been in service at a cogeneration facility since 1991. A preliminary engineering study considered a forced draft (FD) fan to supply combustion air to the HRSG duct burners (when the combustion turbine (CT) is out of service) as a traditional design; however, the study indicated that the FD fan may require the HRSG duct burner to be shut off following a CT trip and reignited after the FD fan was in service. Although the induced draft HRSG design cost more than the FD fan design, the induced draft design has improved the cogeneration facility’s steam generation reliability by enabling the HRSG to remain in service following a CT trip. This paper briefly summarizes the preliminary engineering study that supported the decision to select the ID fan design. The paper also discusses the control system that operates the fresh-air louvers, duct burners, HRSG and ID fan during a CT trip. Startup and operating experiences are presented which demonstrate the effectiveness of the design. Lessons learned are also summarized for input into future induced draft HRSG designs.
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Little, David A., and J. P. Rives. "Steam Injection of Frame 5 Gas Turbines for Power Augmentation in Cogeneration Service." In ASME 1988 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1988. http://dx.doi.org/10.1115/88-gt-51.

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A large chemical plant in France generates both electricity and steam using a fleet of Frame 5 gas turbines. During the winter months when maximum generation capacity is utilized, excess steam may be produced. Instead of venting to atmosphere, the excess steam will now be injected into two gas turbines through a steam injection system. Power increases of up to 29.6% were achieved during testing with a corresponding increase in cogeneration fuel conversion efficiency of up to 4.8%. This paper describes the preliminary engineering, design, fabrication, installation, test and operation of the steam injection system for the two Frame 5 gas turbines.
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Liu, Longbo, Jiashan Jin, and Rui Wang. "Study on Steam Turbine Malfunction Decision Support System Based on Distributed Integrated Intelligent Theory." In 2009 International Conference on Management and Service Science (MASS). IEEE, 2009. http://dx.doi.org/10.1109/icmss.2009.5303950.

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Weiss, Gerhard J., and Jerry A. Kopczynski. "Cost Optimization for Steam Turbine Control Upgrades." In 2002 International Joint Power Generation Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/ijpgc2002-26094.

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The basic principles of generating electricity from steam have not changed during the last 100 years. Consequently, current steam turbine design is similar to the one introduced to the market by BBC, ALSTOM, ASEA or GE about a century ago. Of course modern blade and valve design dramatically improves heat rate; new materials increase effective longevity of the turbine. Similarly, the basic principles of how to control a turbine are the same as many years ago. However, equipment being used now to operate and control a turbine is quite different than that of the time when the first steam turbine was put into commercial operation. It is common knowledge that the control system is technically aging much faster than the turbine itself. Steam turbines achieve an average service life of 40 years. There are many steam turbines still operating with originally installed control systems. These aging control systems installed 20–30 years ago are becoming unreliable and costly to maintain. For most power plant owners/operators it has become a necessity to modernize their originally installed mechanical/hydraulic control systems. This is particulary important now, due to the very competitive, deregulated power production business. Control system upgrades together with improvement of the steam path components will result in efficient operation of the power plant for an extended number of years for a fraction of the cost necessary to build a new power generation station. Several control upgrade solutions and options are available at substantial cost saving, without compromising safety requirements, flexibility and reliability of the power plant. Step by step modular upgrades, utilizing the majority of pre-existing equipment, using proven standard software modules and inexpensive PLCs (programmable logic controllers), applying 2 out-of-three 3 analog signal acquisitions for 2 out of 3, or 1 out of 2 protection — these are some ways of reducing the cost of plant modernization. This paper will discuss and document particular cases where the cost optimization concept was successfully implemented with positive results in the following areas: • High availability and reliability achieved; • Safety and flexibility of operation improved; • Maintenance cost reduced.
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Cai, Zhenwei, Weizhe Wang, Hui Hong, and Yingzheng Liu. "R5 Procedure Based Damage Estimation in a Steam Turbine Valve Under In-Service Conditions." In ASME 2016 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/pvp2016-63330.

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The fatigue behavior in steam turbine valve is generally considered to be associated with thermal transients during start and stop phase. However, the recent analysis has shown that steam parameter fluctuations under in-service steady state operation could induce significant increase in the damage. In this paper, the effect of in-service steam parameter fluctuations on stress-strain behavior in the valve was analyzed based on FE analysis under in-service data. The rain-flow cycle counting method was applied to get effective stress-strain cycle numbers and cycle amplitudes to classify the types of fatigue cycle based on in-service data. The creep-fatigue damage during steady state operation of the valve was estimated by using R5 (Volume 2/3) high temperature assessment procedure together with the FE results. Frequent steam pressure fluctuations at steady state operation were identified as the most influential factor for the fatigue life of the steam turbine valve.
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