Relevant bibliographies by topics / Steam power plants

Contents

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

Academic literature on the topic 'Steam power plants'

Author: Grafiati
Published: 4 June 2021
Last updated: 30 July 2024

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Journal articles on the topic "Steam power plants"

1

Darwish, M. A. "Cogeneration steam power desalting plants using steam turbines." International Journal of Exergy 1, no. 4 (2004): 495. http://dx.doi.org/10.1504/ijex.2004.005792.

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Badr, O., S. D. Probert, and P. O'Callaghan. "Rankine cycles for steam power-plants." Applied Energy 36, no. 3 (1990): 191–231. http://dx.doi.org/10.1016/0306-2619(90)90012-3.

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Ulloa, Carlos, Guillermo Rey, Ángel Sánchez, and Ángeles Cancela. "Power Plants, Steam and Gas Turbines WebQuest." Education Sciences 2, no. 4 (2012): 180–89. http://dx.doi.org/10.3390/educsci2040180.

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Silvestri, G. J., R. L. Bannister, T. Fujikawa, and A. Hizume. "Optimization of Advanced Steam Condition Power Plants." Journal of Engineering for Gas Turbines and Power 114, no. 4 (1992): 612–20. http://dx.doi.org/10.1115/1.2906634.

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The modern pulverized-coal power plant is the product of continuous design experience and component improvement in the 20th century. In recent years, studies of the effect of high temperatures on turbine materials have led to major worldwide research and development programs on improving the thermal cycle by raising turbine-inlet pressure and temperature. This paper reviews the importance of various parameters in trying to optimize a turbine cycle designed for advanced steam conditions. Combinations of throttle pressure (between 3500 psi [24.1 MPa] and 10,000 psi [70MPa]), throttle and reheat temperature(1000°F [538°C] to 1400°F [760°C]), and number of reheats are explored to establish a realistic turbine cycle design. Assessments and trade-offs are discussed, as applicable. Critical cycle components, feedwater cycle arrangements, and reheat pressure selections are analyzed in establishing an optimized steam turbine-boiler cycle for a 1000 MW turbine-generator. Applicability of results to smaller advanced steam turbines is given. A brief update on the high-temperature Wakamatsu turbine project in Japan is also given.
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Rout, Ivan. "Thermal Analysis of Steam Turbine Power Plants." IOSR Journal of Mechanical and Civil Engineering 7, no. 2 (2013): 28–36. http://dx.doi.org/10.9790/1684-0722836.

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Layne, A. W. "Next-generation turbine systems [steam power plants]." IEEE Power Engineering Review 21, no. 4 (2001): 18–23. http://dx.doi.org/10.1109/39.916340.

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Matjanov, Erkinjon K., and Zarina M. Akhrorkhujaeva. "Solar repowering existing steam cycle power plants." International Journal of Thermofluids 17 (February 2023): 100285. http://dx.doi.org/10.1016/j.ijft.2023.100285.

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Kovalchuk, V., I. Kozlov, O. Dorozh, and A. Machkov. "EFFICIENCY OF STEAM GENERATORS AT NUCLEAR POWER PLANTS." Odes’kyi Politechnichnyi Universytet Pratsi 2, no. 64 (2021): 28–35. http://dx.doi.org/10.15276/opu.2.64.2021.04.

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The possibility of a comprehensive assessment of steam generators efficiency at nuclear power plants with water-water reactors, based on the indicator of OEE (overall equipment effectiveness) is considered. It is proposed to consider efficiency as the probability of functioning from the standpoint of availability, performance and product quality.The aim of the work is to evaluate the possibility of using the OEE indicator to analyze the efficiency of NPP steam generators in complex conditions: reactor − steam generator − turbine. Achieving this goal will provide a comprehensive indicator of monitoring the efficiency of steam generating systems and have a tool for systematic monitoring of steam generators. To assess the organizational and environmental efficiency of the organizational structure, individual, group and integrated indicators are proposed, which reflect the share or decrease of the absolute indicator in the system compared to the baseline. The study is based on the analysis of long-term performance of units with steam generators PG-1000, which are comparable. It is shown that the main element of the steam generation system, which determines its efficiency, is the heat generating source. The contribution to the efficiency of all aspects of operation is estimated. It is shown that the efficiency index of OEE allows to characterize the efficiency of steam generators operation at nuclear power plants with water-water reactors, and can be used to monitor and control the process of their operation. In result of research, it is defined that steam generator efficiency increases in process of achievement of the maximum value of its productivity.
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Chen, Cheng-Liang, and Chih-Yao Lin. "Design and Optimization of Steam Distribution Systems for Steam Power Plants." Industrial & Engineering Chemistry Research 50, no. 13 (2011): 8097–109. http://dx.doi.org/10.1021/ie102059n.

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Kozera, W., and J. Szcześniak. "Optimal Control of Superheated Steam Temperature in Steam Turbine Power Plants." IFAC Proceedings Volumes 28, no. 2 (1995): 351–55. http://dx.doi.org/10.1016/s1474-6670(17)51693-6.

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Dissertations / Theses on the topic "Steam power plants"

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Yunt, Mehmet 1975. "Steam temperature regulation in fossil power plants." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/89876.

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Baker, Jeffery K. Terhune Jeffery S. "The effects of strobe light and sound behavioral deterrent systems on impingement of aquatic organisms at Plant Barry, Alabama." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/FALL/Fisheries_and_Allied_Aquacultures/Thesis/Baker_Jeffery_24.pdf.

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Wakeley, Guy Richard. "The optimisation of steam turbine design." Thesis, University of Newcastle Upon Tyne, 1997. http://hdl.handle.net/10443/2041.

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The world market-place for steam turbine products is becoming increasingly competitive, and manufacturers must routinely produce designs which are extensively optimised whilst working within demanding tender and contract lead-times. The objective of the research work has been to develop a methodology whereby established turbomachinery analysis methods can be integrated within a framework of optimising algorithms. A rule-base, numerical optimisation, fuzzy logic, and genetic algorithms are used to optimise bladepath configurations, with particular emphasis on the minimisation of life-cycle operating costs. Significantly, automation of the design process is increased, design lead-times can be reduced, and performance improvements are predicted. The optimisation procedure relies on a sequential approach, with much emphasis placed on the iterative running of simple design codes. Simplified design methods are often reliant on correlated loss data to predict turbine performance, and in some cases this data is inaccurate or incomplete. An example of this is in the design of partially-admitted control stages, where little published data is available. It is suggested that CFD methods can, in some cases, be applied to derive new performance correlations or re-assess the validity of existing models. The application of an unsteady CFD solver to typical control stage geometries is presented in detail, and the approach is extended to include the development of a new control stage optimisation method.
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Saalfeld, David Thomas Bayne David Roberge. "Variables influencing fish impingement at five Alabama Power steam plants." Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Spring/master's/SAALFELD_DAVID_51.pdf.

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Melnyk, Glenn J. "Mechanisms for automated toolhead changing in nuclear steam generator robotics." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-06302009-040338/.

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Honing, Werner. "Steam flow distribution in air-cooled condenser for power plant application." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/2540.

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Thesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2009.<br>ENGLISH ABSTRACT: Air-cooled steam condensers are used in arid regions where adequate cooling water is not available or very expensive. In this thesis the effect of steam-side and air-side effects on the condenser performance, steam distribution and critical dephlegmator length is investigated for air-cooled steam condensers as found in power plants. Solutions are found so that no backflow is present in the condenser. Both single and two-row condensers are investigated. The tube inlet loss coefficients have the largest impact on the critical dephlegmator tube length in both the single and two-row condensers. The critical dephlegmator tube lengths were determined for different dividing header inlet geometries and it was found that a step at the inlet to the dividing header resulted in the shortest tubes. Different ambient conditions were found to affect the inlet steam temperature, the steam flow distribution, heat rejection distribution and the critical dephlegmator length for the single and two-row condensers. There were differences in the steam mass flow distributions for the single and two-row condensers with opposite trends being present in parts of the condenser. The single-row condenser’s critical dephlegmator tube lengths were shorter than those of the two-row condenser for the same ambient conditions. Areas of potential backflow change with different ambient conditions and also differ between a single and two-row condenser. The two-row condenser always have an area of potential backflow for the first row at the first condenser fan unit.<br>AFRIKAANSE OPSOMMING: Droë lug-verkoelde stoom kondensors word gebruik in droë gebiede waar genoegsame verkoelingswater nie beskikbaar is nie of baie duur is. In hierdie tesis word die effek van stoomkant en lugkant effekte op die vermoë van die kondensor, die stoomvloeiverdeling en kritiese deflegmator lengte ondersoek vir lug-verkoelde stoom kondensors soos gevind in kragstasies. Dit word opgelos sodat daar geen terugvloei in enige van die buise is nie. ʼn Enkel- en dubbelry kondensor word ondersoek. Die inlaatverlieskoëffisiënte van die buise het die grootste impak op die lengte van die kritiese deflegmator buise in beide die enkel- en dubbelry kondensors. Die kritiese deflegmator buis lengtes is bereken vir verskillende verdeelingspyp inlaat geometrië en dit is gevind dat ʼn trap by die inlaat van die verdeelingspyp die kortste buise lewer. Dit is gesien dat verskillende omgewingskondisies die inlaat stoom temperatuur, die stoomvloeiverdeling, die warmteoordrag verdeling en die kritiese lengte van die deflegmator buise vir die enkel- en dubbelry kondensor. Daar was verskille tussen die stoomvloeiverdelings vir die enkel- en dubbelry met teenoorgestelde neigings in dele van die kondensor. Die kritiese deflegmator buis lengte vir die enkelry kondensor was korter as die vir die dubbelry kondensor vir dieselfde omgewingskondisies. Die areas in die kondensor waar terugvloei moontlik kan plaasvind in die kondensor verander met ongewingskondisies en verskil vir die enkel- en dubbelry kondensers. Die dubbelry kondensor het altyd ʼn area van moontlike terugvloei vir die eerste buisry by die eerste kondensor waaiereenheid.
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Knight, Amelia Cassidy Terhune Jeffery S. "General fish health assessment and age evaluation of impinged fish at steam generating power plants." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/FALL/Fisheries_and_Allied_Aquacultures/Thesis/Knight_Amelia_50.pdf.

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Edwards, Jacob N. "Thermal energy storage for nuclear power applications." Thesis, Kansas State University, 2017. http://hdl.handle.net/2097/36238.

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Master of Science<br>Department of Mechanical and Nuclear Engineering<br>Hitesh Bindra<br>Storing excess thermal energy in a storage media that can later be extracted during peak-load times is one of the better economical options for nuclear power in future. Thermal energy storage integration with light water-cooled and advanced nuclear power plants is analyzed to assess technical feasibility of different storage media options. Various choices are considered in this study; molten salts, synthetic heat transfer fluids, and packed beds of solid rocks or ceramics. In-depth quantitative assessment of these integration possibilities are then analyzed using exergy analysis and energy density models. The exergy efficiency of thermal energy storage systems is quantified based on second law thermodynamics. The packed bed of solid rocks is identified as one of the only options which can be integrated with upcoming small modular reactors. Directly storing thermal energy from saturated steam into packed bed of rocks is a very complex physical process due to phase transformation, two phase flow in irregular geometries and percolating irregular condensate flow. In order to examine the integrated physical aspects of this process, the energy transport during direct steam injection and condensation in the dry cold randomly packed bed of spherical alumina particles was experimentally and theoretically studied. This experimental setup ensures controlled condensation process without introducing significant changes in the thermal state or material characteristics of heat sink. Steam fronts at different flow rates were introduced in a cylindrical packed bed and thermal response of the media was observed. The governing heat transfer modes in the media are completely dependent upon the rate of steam injection into the system. A distinct differentiation between the effects of heat conduction and advection in the bed were observed with slower steam injection rates. A phenomenological semi-analytical model is developed for predicting quantitative thermal behavior of the packed bed and understanding physics. The semi-analytical model results are compared with the experimental data for the validation purposes. The steam condensation process in packed beds is very stable under all circumstances and there is no effect of flow fluctuations on thermal stratification in packed beds. With these experimental and analytical studies, it can be concluded that packed beds have potential for thermal storage applications with steam as heat transfer fluid. The stable stratification and condensation process in packed beds led to design of a novel passive safety heat removal system for advanced boiling water reactors.
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Lucquiaud, Mathieu. "Steam cycle options for capture-ready power plants, retrofits and flexible operation with post-combustion CO₂ capture." Thesis, Imperial College London, 2010. http://hdl.handle.net/10044/1/5942.

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The energy penalty for post‐combustion carbon dioxide capture from fossil‐fired power plants can be greatly reduced ‐ independently of the intrinsic heat of regeneration of the solvent used ‐ by effective thermodynamic integration with the power cycle. Yet expected changes in electricity generation mix and the current immaturity of post‐combustion capture technology are likely to make effective thermodynamic integration throughout the operating life of such plants a challenging objective to achieve because of a requirement for extensive part‐load operation and also for matching to future technology improvements. Most previous published studies have, however, focused on base‐load operation of the power cycle and the carbon dioxide capture plant and with the assumption of a fixed technology. For carbon dioxide capture‐ready plants the characteristics of the capture plant are also not known when the plant is designed. The plant must operate initially without capture at a similar efficiency to ‘standard’ plants to be competitive. Capture‐ready plants then also need to be able to be retrofitted with unknown improved solvents and to be capable of integration with a range of future solvents. This study shows that future upgradability for post‐combustion capture systems can be facilitated by appropriate steam turbine and steam cycle designs. In addition fossil‐fired power plants with postcombustion capture may need to be able to operate throughout their load range with the capture unit by‐passed, or with intermediate solvent storage to avoid the additional emissions occurring when the absorption column is by‐passed. Steam cycles with flexible steam turbines can be adequately designed to accommodate for part‐load operation with these novel operating conditions and with rapid ramp rates. Several approaches for effective capture‐ready pulverised coal and natural gas plants are also described. These achieve identical performance before retrofit to a conventional plant with the same steam conditions, but have the potential to perform well after capture retrofit with a wide range of solvents, at the expense of only a small efficiency penalty compared to hypothetical plants built with perfect foreknowledge of the solvent energy requirements. For existing plants that were not made capture‐ready, and provided sufficient space is available and other physical limits are not too constraining, ways to achieve effective thermodynamic integration are also discussed.
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Oexmann, Jochen [Verfasser]. "Post-combustion CO2 capture : energetic evaluation of chemical absorption processes in coal-fired steam power plants / Jochen Oexmann." Hamburg : Universitätsbibliothek der TU Hamburg-Harburg, 2011. http://d-nb.info/1012653196/34.

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Books on the topic "Steam power plants"

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Woodruff, Everett B. Steam-plant operation. 6th ed. McGraw-Hill, 1992.

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Woodruff, Everett B. Steam-plant operation. 7th ed. McGraw-Hill, 1998.

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Klefenz, Günter. Automatic control of steam power plants. 3rd ed. Bibliographisches Institut, 1986.

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Joint Power Generation Conference (1988 Philadelphia, Pa.). Steam turbines in power generation. American Society of Mechanical Engineers, 1988.

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Woodruff, Everett B. Steam plant operation. 9th ed. McGraw-Hill, 2012.

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Charlie, Buffington, ed. Power plant engineers guide. 3rd ed. Macmillan Pub. Co., 1987.

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Kehlhofer, Rolf. Combined-cycle gas & steam turbine power plants. Fairmont Press, 1991.

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1951-, Kehlhofer Rolf, ed. Combined-cycle gas & steam turbine power plants. 3rd ed. Penwell, 2008.

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1951-, Kehlhofer Rolf, and Kehlhofer Rolf 1951-, eds. Combined-cycle gas & steam turbine power plants. 2nd ed. PennWell, 1999.

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Leĭzerovich, A. Sh. Large power steam turbines: Design and operation. PennWell Books, 1997.

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Book chapters on the topic "Steam power plants"

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Yang, Zongming, Huabing Wen, Xinglin Yang, Viktor Gorbov, Vira Mitienkova, and Serhiy Serbin. "Marine Steam Turbine Power Plants." In Marine Power Plant. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4935-3_5.

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Gicquel, Renaud. "Variants of steam power plants." In Energy Systems, 2nd ed. CRC Press, 2021. http://dx.doi.org/10.1201/9781003175629-11.

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Syam, Dhruba J. "Steam Turbine Driven Thermal Power Generation (STG) Plants." In Electrical Power Generation. CRC Press, 2023. http://dx.doi.org/10.1201/9781003403128-3.

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El Hefni, Baligh, and Daniel Bouskela. "Steam Turbine Modeling." In Modeling and Simulation of Thermal Power Plants with ThermoSysPro. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-05105-1_10.

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El Hefni, Baligh, and Daniel Bouskela. "Boiler (Steam Generator) Modeling." In Modeling and Simulation of Thermal Power Plants with ThermoSysPro. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-05105-1_7.

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Kanki, H., C. Yasuda, S. Umemura, R. Itoh, C. Miyamoto, and T. Kawaguchi. "Vibration Diagnostic Expert System for Steam Turbines." In Diagnostics of Rotating Machines in Power Plants. Springer Vienna, 1994. http://dx.doi.org/10.1007/978-3-7091-2706-3_2.

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Khalil, E. "Steam power plants." In Thermal Engineering in Power Systems. WIT Press, 2008. http://dx.doi.org/10.2495/978-1-84564-062-0/04.

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"Steam Power Plants." In Thermodynamics. CRC Press, 1999. http://dx.doi.org/10.1201/9780203909829.ch10.

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"Repowering steam plants." In Generating Power at High Efficiency. CRC Press, 2008. http://dx.doi.org/10.1201/9781439832868.ch7.

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Jeffs, Eric. "Repowering steam plants." In Generating Power At High Efficiency. Elsevier, 2008. http://dx.doi.org/10.1533/9781845694548.135.

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Conference papers on the topic "Steam power plants"

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Yadav, R., Sunil Kumar Jumhare, Pradeep Kumar, and Samir Saraswati. "Thermodynamic Analysis of Intercooled Gas-Steam Combined and Steam Injected Gas Turbine Power Plants." In ASME Turbo Expo 2004: Power for Land, Sea, and Air. ASMEDC, 2004. http://dx.doi.org/10.1115/gt2004-54097.

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The current emphasis on the development of gas turbine related power plants such as combined and steam injected is on increasing the plant efficiency and specific work while minimizing the cost of power production per kW and emission. The present work deals with the thermodynamic analysis of intercooled (both surface and evaporative) gas/steam combined and steam injected cycle power plants. The intercooling has a beneficial effect on both plant efficiency and specific work if the optimum intercooling pressure is chosen between 3 and 4. The evaporative intercooler is superior to surface type with reference to plant efficiency and specific work.
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Gunnarsson, Almar, Ari Elisson, Magnus Jonsson, and Runar Unnthorsson. "Specified Maintenance of Steam Turbines in Geothermal Power Plants." In ASME 2013 Power Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/power2013-98088.

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In a geothermal power plant the working fluid used to produce electricity is often wet steam composed of corrosives chemicals. In this situation, more frequent maintenance of the equipment is required. By constructing an overview for maintenance in geothermal power plants and how it can be done with minimum power outages and cost, the geothermal energy can be made more competitive in comparison to other energy resources. This work is constructed as a part of a project, which has the aim of mapping the maintenance management system at the Hellisheiði geothermal power plant in Iceland. The object of the project is to establish Reliability Centered Maintenance (RCM) program for Hellisheiði power plant that can be utilized to establish efficient maintenance management procedures. The focus of this paper is to examine the steam turbines, which have been defined as one of the main subsystems of the power plant at Hellisheiði. A close look will be taken at the maintenance needed for the steam turbines by studying for example which parts break down and how frequently they fail. The local ability of the staff to repair or construct turbine parts on-site is explored. The paper explores how the maintenance and condition monitoring is carried out today and what can be improved in order to reduce cost. The data collected is analyzed using Failure Mode and Effect Analysis (FMEA) in order to get an overview of the system and to help organizing maintenance and condition monitoring of the power plant in the future. Furthermore, the paper presents an overview of currently employed maintenance methods at Hellisheiði power plant, the domestic ability for maintaining and repairing steam turbines and the power plant’s need for repairs. The results show that the need for maintenance of the geothermal steam turbines at Hellisheiði power plant is high and that on-site maintenance and repairs can decrease the cost.
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Logar, Andreas, Thomas Depolt, and Edwin Gobrecht. "Advanced Steam Turbine Bypass Valve Design for Flexible Power Plants." In 2002 International Joint Power Generation Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/ijpgc2002-26071.

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The authors company has had extensive experience providing steam turbines including auxiliary systems as a turn key contractor for more than 40 years. Bypass systems are an integrated part of modern Combined Cycle Power Plants (CCPP) [1]. Bypass systems contribute a major part for operational flexibility. They allow the shortest start-up times by minimising mismatches between boiler/HRSG and turbine. Bypass systems also lead to predictable and repeatable start-up times, as well as reducing solid particle erosion of component, to a great extent. The functional requirements for bypass valves are: • Control mode for an accurate control of the IP and LP bypass steam flow during the unit start-up and shut-down, as well as during normal operating transients. • Fast closing mode for bypass-trip (supported by spring force) when required for condenser protection. • Combined mode for fast reaction on pressure increase to a define set point and further action in control mode. In the past, a combined stop and control valve design, each with a separate stem, was common. The challenging objective for the bypass valve design was to integrate the control function and the trip function with a single stem design. The authors company has developed this advanced steam turbine bypass valve that incorporates hydraulic actuator with a single stem design. The valve bodies have noise reduction fittings and are equipped with large extensions on the outlet side to reduce vibration throughout the bypass system. The bypass valve body has an integrated steam strainer which protects both valve parts and the condenser from external debris. The bypass design is prepared for Power Plants with elevated temperatures which allow for the highest plant efficiencies [2]. Surface coating protect moving components against oxidation and reduce friction by means of a surface coating. Steam at high temperature passes through the bypass to the condenser. An incorporated water attemporating flow control system reduces the steam temperatures before entering the condenser. Condensate water is injected through an orifice in the bypass system. The orifice is located down stream in the pipe between the bypass valve and condenser. Electro-hydraulic supply units deliver the control fluid to the bypass valves. An optimized bypass system has to provide: • Long service life with low maintenance costs; • High stroke speed; • Pressure control by unit set point; • High actuation forces; • Accurate positioning; • Very short trip time into closed position. By means of bypass station, one can get highest flexibility of power plants use of the new valve one will get highest control performance and shortest reaction time.
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Nightingale, Darren M. "Design Guidelines for the Safe Operation of Steam Surface Condenser Turbine Bypass on Combined Cycle Power Plants." In ASME 2017 Power Conference Joint With ICOPE-17 collocated with the ASME 2017 11th International Conference on Energy Sustainability, the ASME 2017 15th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2017 Nuclear Forum. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/power-icope2017-3002.

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The ability to bypass steam, around the steam turbine and directly into a steam surface condenser, has been a fundamental aspect of the design of base loaded power plants for many years. The increased dependence on natural gas, and the subsequent increase in the number of combined cycle plants, has provided additional challenges for the condenser designer, and also the plant operator, with respect to safely accommodating steam bypass. However, the steam bypass requirements for modern combined cycle power plants differ significantly from those of traditionally base loaded plants, like fossil and nuclear. Higher cycle frequencies for steam bypass, faster start-ups, as well as increases in bypass steam temperatures and pressures, have all impacted the design criteria for the condenser. Indeed, for modern combined cycle plants, the bypass steam conditions are often higher than normal operation, such that the bypass requirements can very well dictate the overall design of the condenser. This, in turn, has resulted in an increase in the reported instances of operational problems, tube failures, condenser damage and plant shutdowns due to steam bypass related issues. Recorded issues and reported failures experienced by combined cycle power plants during steam bypass, have been traced to causes such as transient conditions during commissioning, faster start-ups, the poor design and location of steam bypass headers internal to the condenser, over-heating due to curtain spray deficiencies, excessive tube vibration and tube failures. Many of these issues are based on an inherent lack of understanding of the impact of the rigors of steam bypass on condenser internals. Furthermore, operation of steam bypass outside of the generally accepted design parameters often compounds these problems. This paper consolidates the learning and advances in the design of turbine bypass systems for steam surface condensers from the past 20, or so, years. It includes current design guidelines, as well as safe operational limitations, and general considerations for minimizing potential damage when operating steam bypass on a modern combined cycle power plant. Included is a Case Study of how an existing fossil power plant that was repowered, along with the existing steam surface condenser that was modified to accept the bypass steam, experienced excessive erosion and damage during the past 10+ years of operation. The condenser was recently reviewed once again, and additional modifications were implemented to take advantage of current improvements in steam bypass design. This drastically reduced further erosion and improved the condenser availability, reliability and longevity; thereby improving the plant efficiency.
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Brenner, Matthew J., Paul J. Babel, Julie M. Jarvis, Allen T. Vieira, and Jyoti Singh. "Steam Blowing Techniques for Large Solar Thermal Power Plants." In ASME 2014 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/pvp2014-29065.

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Steam line blowing is an operational cleaning method used to clean steam piping and reheaters prior to turbine powering for steam power plants. This paper focusses on the application and challenges associated with the steam blowing of large solar thermal collection power plants. The boiler configuration, located atop an over 400 foot tall tower, in a large solar thermal collection plant poses some challenges not associated with other steam supply methods. As a result of the flow path configurations and steam mass required for blowing the cold reheat, reheater, and hot reheat portions of the plant, attemperation is required to control temperatures in the reheater. The use of multiple flow paths and stages through the reheater also requires some additional consideration. Where in a fossil powered plant the losses through the reheater are based on the inlet vs. outlet conditions, additional vendor data is required to model the internal sections of the reheater in greater detail. Methodologies developed for fossil powered plants can be applied to large solar thermal collectors with special consideration for the unique configurations and constantly changing solar conditions associated with the plants. The smaller margins associated with these plants requires more rigorous modeling of the system components.
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Yadav, R., and Lakshman Singh. "Comparative Performance of Gas/Steam Combined Cycle Power Plants." In ASME 1995 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/95-gt-155.

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In this paper, an attempt has been made to predict the comparative thermal performance of various configurations of unfired gas/steam combined cycle power plants. The prediction is based on the thermodynamic analysis of various components of the plant. The performance curves drawn may be beneficial in the selection of configuration and parameters for the design of combined cycle plants.
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7

Tuccillo, R., G. Fontana, and E. Jannelli. "Coal-Derived Gas Utilization in Combined Gas-Steam Cycle Power Plants." In ASME 1990 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1990. http://dx.doi.org/10.1115/90-gt-366.

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In this paper, a general analysis of combined gas-steam cycles for power plants firing with both hydrocarbons and coal derived gas is reported. The purpose of this paper is to study the influence on power plants performance of different kind of fuels and to evaluate the most significant parameters of both gas and combined cycle. Results are presented for plant overall efficiency and net specific work, steam to gas mass flow ratio, dimensionless gas turbine specific speed and diameter, CO2 emissions etc., as functions of gas cycle pressure ratio and of the combustion temperature. Furthermore, for an existing power plant with a 120 MW gas turbine, the authors try to establish in which measure the combined cycle characteristic parameters, the gas turbine operating conditions, and the heat recovery steam generator efficiency, are modified by using synthetic fuels of different composition and calorific value. The influence is also analyzed either of bottoming steam cycle saturation pressure or — in a dual pressure steam cycle — of dimensionless fraction of steam mass flow in high pressure stream. The acquired results seem to constitute useful information on the criteria for the optimal design of a new integrated coal gasification combined cycle (IGCC) power plant.
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Carapellucci, Roberto, and Lorena Giordano. "Methane Steam Reforming and Steam Injection for Repowering Combined Cycle Power Plants." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-70692.

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Repowering existing power plants represents a potential route to meet the increasing energy demand, in a context of more and more stringent environmental regulations, hindering the construction of new facilities. Conventionally, repowering is operated into existing steam power plants, thus allowing to increase the design capacity to such an extent that depends on the type of strategy to exploit the waste heat from the additional gas turbine. In this study a new repowering concept is proposed. It involves the integration of an additional unit based on a gas turbine into an existing combined cycle gas turbine (CCGT). Based on this concept, two repowering options are examined. In the first one (Option A), the waste heat from gas turbine flue gases is used to produce steam in a one pressure level steam generator. In the second option (Option B), the exhaust waste heat recovery promotes the generation of a synthesis gas in a methane steam reformer. The integration of the additional unit is operated by the injection of superheated steam (Option A) and the reformed fuel (Option B) into the combustor of the main power plant, thus allowing for a further increase in power output of both topping and bottoming cycles. The simulation study allows to compare the repowering options with respect to the potential increase of power capacity, as well as in terms of energy marginal performance parameters.
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Jarvis, Julie M., Paul J. Babel, and Allen T. Vieira. "Advances in Power Plant Steam Blow Cleaning Analyses." In ASME Turbo Expo 2004: Power for Land, Sea, and Air. ASMEDC, 2004. http://dx.doi.org/10.1115/gt2004-53161.

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Steam blows are used prior to initial turbine powering for steam power plants to clear debris and surface scale that could potentially damage turbine blades during plant operation. Based on experience from steam blows for several dozen plants, enhancements have been made to the techniques in the detailed engineering analysis used by plant startup to perform steam blows. This paper discusses these improvements as applied to combined cycle gas and coal power plants. The basis for steam blows is that the piping is blown, bypassing the turbine, with sufficient boiler pressure to ensure that the piping will experience a dynamic pressure to assure adequate cleaning. Typically, the boiler pressures during steam blow provide a dynamic pressure throughout the piping, which is at least 20% higher than would be experienced for all plant operating conditions. Therefore, any potentially damaging particles will be blown out of the piping prior to the turbine operation. The following improvements and enhancements, which are detailed in this paper, have recently been implemented in the analyses used to establish adequate steam blows: 1. Advanced Modeling Techniques. 2. Design Coordination with Fast Track Engineering. 3. Consideration of Multiple HRSG Plants. 4. Analysis Support During Actual Steam Blows (for site engineering and startup).
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Buecker, Brad. "Water/Steam Treatment Programs and Chemistry Control for Heat Recovery Steam Generators." In ASME 2013 Power Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/power2013-98004.

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New power generation in the U.S. is being dominated by installation of combined-cycle power plants, where a significant portion of the power is produced from steam turbines supplied by heat recovery steam generators (HRSG). Proper chemistry control and monitoring of HRSG feedwater, boiler water, and steam are essential for high reliability and availability of these units. However, many plants have minimal staff, most if not all of whom have no formal chemistry training and who may not fully understand the importance of water/steam chemistry and monitoring techniques. This paper provides an outline of the most important chemistry control methods and also examines the phenomenon of flow-accelerated corrosion (FAC). FAC is the leading cause of corrosion in HRSGs,[1] and is often the result of the outdated belief that oxygen scavengers are a requirement for feedwater treatment. Since 1986, FAC-induced failures at several coal-fired power plants have killed or injured a number of U.S. utility workers.
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Reports on the topic "Steam power plants"

1

Viswanathan, R., J. Hawk, R. Schwant, et al. Steam Turbine Materials for Ultrasupercritical Coal Power Plants. Office of Scientific and Technical Information (OSTI), 2009. http://dx.doi.org/10.2172/1081317.

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2

Pacheco, James Edward, Thorsten Wolf, and Nishant Muley. Incorporating supercritical steam turbines into molten-salt power tower plants :. Office of Scientific and Technical Information (OSTI), 2013. http://dx.doi.org/10.2172/1088078.

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3

Wang, Evelyn, Yajing Zhao, and Samuel Cruz. Capillary-driven Condensation for Heat Transfer Enhancement in Steam Power Plants. Office of Scientific and Technical Information (OSTI), 2021. http://dx.doi.org/10.2172/1837751.

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4

Patterson, Mark. AOI 3 Life Modelling of Critical Steam Cycle Components in Coal-Fueled Power Plants. Office of Scientific and Technical Information (OSTI), 2023. http://dx.doi.org/10.2172/1998875.

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Vorum, M., and E. Fitzler. Comparative analysis of alternative means for removing noncondensable gases from flashed-steam geothermal power plants. Office of Scientific and Technical Information (OSTI), 2000. http://dx.doi.org/10.2172/758765.

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6

Shen, Chen. Modeling Creep-Fatigue-Environment Interactions in Steam Turbine Rotor Materials for Advanced Ultra-supercritical Coal Power Plants. Office of Scientific and Technical Information (OSTI), 2014. http://dx.doi.org/10.2172/1134364.

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7

Bharathan, D., E. Hoo, and P. D'Errico. An assessment of the use of direct contact condensers with wet cooling systems for utility steam power plants. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/5861593.

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Bharathan, D., E. Hoo, and P. D`Errico. An assessment of the use of direct contact condensers with wet cooling systems for utility steam power plants. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/10124218.

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9

None, None. Final Scientific / Technical Report: Evaluation of Steam Cycle Upgrades to Improve the Competitiveness of U.S. Coal Power Plants. Office of Scientific and Technical Information (OSTI), 2020. http://dx.doi.org/10.2172/1631277.

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10

Wendt, Daniel, Ghanashyam Neupane, Juliet Simpson, Joshua McTigue, and Guangdong Zhu. Techno-Economic Analysis of Greenfield Geothermal Hybrid Power Plants using a Solar or Natural Gas Steam Topping Cycle. Office of Scientific and Technical Information (OSTI), 2024. http://dx.doi.org/10.2172/2352599.

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