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Dissertations / Theses on the topic 'Bypass system of steam turbine'

Author: Grafiati

Published: 28 June 2021

Last updated: 29 July 2025

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1

Molák, Filip. "Bypassový systém parních turbín." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443169.

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The master’s thesis deals with the bypass system of steam turbine, especially about its heating during normal operation and cold start up. At the beginning of work, a preliminary thermodynamic calculation of condensing steam turbine with two uncontrolled extractions is made. This is followed by theoretical description and design of bypass system and design of heating during normal operation and cold start-up. The main goal of thesis is optimalization of heating, when the heating branch is connected back to turbine supply line. In the end, all options of heating are compared in terms of power o

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2

Gemmell, Brian David. "A consultative expert system for intelligent diagnosis on steam turbine plant." Thesis, University of Strathclyde, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340915.

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3

Jefferson, Marx. "Analysis of combined gas turbine and steam turbine (COGAS) system for marine propulsion by computer simulation." Thesis, University of Newcastle Upon Tyne, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.431133.

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4

Sethapati, Vivek Venkata. "Computational Fluid Flow Analysis of the Enhanced-Once through Steam generator Auxiliary feedwater system." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/77020.

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The once through steam generator (OTSG) is a single pass counter flow heat exchanger in which primary pressurized water from the core is circulated. Main Feedwater is injected in an annular gap on the outer periphery of the steam generator shroud such that it aspirates steam to preheat the feedwater to saturation temperature. An important component of the OTSG and enhanced once through steam generator (EOTSG) is the auxiliary feedwater system (AFW), which is used during accident/transient scenarios to remove residual heat by injecting water through jets along the outer periphery of the heat ex

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5

Lundberg, Anders, and Tobias Jansson. "Preliminary study of a frame for a two module turbine system." Thesis, Linköpings universitet, Maskinkonstruktion, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-72082.

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The development of steam turbines is continuously moving forward and the aim is oftento develop configurations with higher power output. Siemens Industrial Turbomachinery AB is currently in the beginning of a development project which replaces a single turbine with two interconnected turbines with higher pressure and temperature of the steam than before. To ensure reliable quality and hold down costs is it an advantage to do most of the assembly before delivery to site.This thesis work at Linköping University has been written in collaboration with Siemens Industrial Turbomachinery AB, Finspång

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6

Chakravarthula, Venkata Adithya. "Transient Analysis of a Solid Oxide Fuel Cell/ Gas Turbine Hybrid System for Distributed Electric Propulsion." Wright State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=wright1484651177170392.

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7

Benyo, Theresa Louise. "Analytical and computational investigations of a magnetohydrodynamics (MHD) energy-bypass system for supersonic gas turbine engines to enable hypersonic flight." Thesis, Kent State University, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3618922.

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<p> Historically, the National Aeronautics and Space Administration (NASA) has used rocket-powered vehicles as launch vehicles for access to space. A familiar example is the Space Shuttle launch system. These vehicles carry both fuel and oxidizer onboard. If an external oxidizer (such as the Earth's atmosphere) is utilized, the need to carry an onboard oxidizer is eliminated, and future launch vehicles could carry a larger payload into orbit at a fraction of the total fuel expenditure. For this reason, NASA is currently researching the use of air-breathing engines to power the first stage of t

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8

Al-Azri, Nasser Ahmed. "Integrated approaches to the optimization of process-utility systems." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2896.

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9

Schrimpel, Michal. "Parovzduchová turbína s využitím přeplňovacích turbodmychadel PBS Turbo." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-227963.

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The purpose of this analysis is used PBS Turbo turbochargers like a steam-air turbine in the Flexible Energy System. The System is analogy of Brayton cycle with high efficiency, but heat is transferred to the cycle through a heat exchanger. Main parts of this work are the literature search, the thermodynamic model of the steam-air cycle, and solution for other possibilities. The goal is to find maximum available electrical output and efficiency. The thermodynamic model is used to: - check computation of the standard turbocharger - computation of the steam-air turbine contain one turbocharger -

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10

Skala, Šimon. "Systém ucpávkové páry pro parní turbínu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318755.

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The diploma thesis deals with preliminary design of condensing steam turbine with three unregulated steam outputs and its gland steam system particularly its description and design. The steam parameters in key outputs were determined in heat balance. The gland steam system parameters were calculated for different operating conditions. It also describes influence of pressure on performance of turbine in gland steam system. Finally, the inquiry sheet for gland steam system device was created based on calculated values.

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11

Kalivodová, Markéta. "Rušič vakua parních turbín." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417535.

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In this master’s thesis, a preliminary thermodynamic calculation of the turbine is made. Then, the design and location of the vacuum breaker is devised for this turbine. The aim of the master’s thesis is to calculate a time needed to break the vacuum, ie to determine how long it takes to reach the atmospheric pressure inside the turbine and add-on devices. To verify and improve the accuracy of the calculation there are data measured on real projects used.

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12

Červenec, Adam. "Parní turbína pro pohon kompresoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401526.

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The purpose of the diploma thesis is the design of condensing steam turbine for driving a compressor with mechanical power of 14,5 MW and operating speed 6800 rotations per minute on the compressor clutch. The main part is the thermodynamic calculation of the blade canal, which is verified with strength calculation to meet the requirements of the standart API 612. The next part is a basic design of gland sealing system, including a piston which is leveling the axial force with reusage of steam back to the blade canal. This thesis includes a calculation of axial and radial forces including the

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13

Wang, Dongcan. "Comparative analysis of development potential for biomass- vs coal-fired powerplants in Henan province,China." Thesis, KTH, Energiteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-211707.

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Coal-fired power plants’ typically large capacity and relatively low electricity generation costs in the Chinese power market can be compared with their typically low specific thermal efficiency and older age on average. At the same time, the environment pollution caused by local coal-fired power plants has started to receive due attention. Sustainable renewable energy sources and the application of effective conversion technologies for those has become a top priority of China's current energy strategy. Biomass in general and anaerobic biogas in particular can be regarded as clean, locally ava

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14

Slezáková, Iveta. "Parní turbina s ejektorem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-227925.

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The main Target of this diploma is to find some reconciliation with cooperation of turbine and ejector. This work is containing informations about this mechanisms and also its historical development. The merits of this diploma thesis is thermodynamics calculation and proposal of main parameters and proportions of the turbine and the ejector. After this it is follow by the calculation of whole system of the turbine and ejector in consequence with calculation of turbine with by-pass regulation and also comparison of power output with ejector and with by-pass technology.

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15

Федянина, Христина Борисівна, та Валерій Петрович Северин. "Параметричний синтез нечіткого регулятора системи керування паровою турбіною атомної електростанції". Thesis, Львівська політехніка, 2011. http://repository.kpi.kharkov.ua/handle/KhPI-Press/32718.

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Ця стаття описує рішення проблеми синтезу інтелектуальних систем управління. Оптимальні системи управління з нечіткими регуляторами синтезовано для парової турбіни, що дозволяє порівнювати нечіткі регулятори та традиційні ПІД-регулятори.<br>This paper describes solution of synthesis problems in intellectual control systems. Optimal control systems with fuzzy controllers were synthesized for steam turbine, thus allowing comparison between fuzzy controllers and traditional PID controllers.

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16

Beran, Petr. "Parní turbína pro pohon kompresoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417734.

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The goal of this diploma thesis is design of steam turbine for driving a compressor with mechanical power of 25 MW, while using a standard API 612. In the first chapter of this work there is calculation of the steam mass flow about value of 23.17 kg/s, the next chapter deals with the design of control stage with the diameter of 0.715 m, inner power of 1673.6 kW and thermodynamic efficiency of 68 %. The following chapter includes thermodynamic calculation of stage part about power of 26.37 MW at designed rotation speed 5722.5 rpm which corresponds to 105 % of rated speed and thermodynamic effic

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17

Brabec, Vít. "Parní turbina jako točivá redukce." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229826.

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The dissertation analyses a possibility to install a steam turbine for steam reduction in the heating plant with a combined cycle, Červený Mlýn. In the first part of this work the constituent parts of Červený Mlýn plant are briefly described. Basic information is included about two considered solutions to the steam turbine for steam reduction. Then the thermic diagram of the whole heating plant and the heat exchanger station itself is presented. On the basis of the given values of the heat required in the hydrothermal system, duration of the steam flow through both variants of the steam turbin

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18

BONO, ANDREA. "Criticità nelle esigenze e nelle offerte energetiche: il ruolo rilevante della progettazione e della gestione ottimizzata delle macchine a fluido e dei sistemi per la conversione di energia. Aspetti applicativi nella piccola fornitura di energia e nella propulsione navale." Doctoral thesis, Università degli studi di Genova, 2021. http://hdl.handle.net/11567/1046981.

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The present work deals with environmental sustainability and specific engineering solutions able to cope with such a global issue. Attention is focused on renewable energy and innovative fuels as effective strategies in contributing valuable techniques in order to face the need of mitigating environmental problems concerning climate change and global warming. The research study is targeted on optimized design and management of fluid machinery, and extensively on optimized energy conversion systems, conceptualized in accordance with current standards and regulations, governing the reference se

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19

Martynek, Filip. "Kondenzační parní turbína." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318687.

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Content of this thesis is design of one-housing condensing steam turbine with two uncontrolled extractions. First part is describing design of balance scheme. Including cycle joints calculation, design of equipment for whole steam and condense cycle. Thesis continues with preliminary and detail design of regulativ stage. Main goal of this part is thermodynamic calculation of flow channel. Second part is describing lubricating oil and cooling system. Contains process description of lubricating oil scheme including calculation, specification of components and pipe branches design. Diploma thesis

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20

Štěpánová, Lenka. "Parní kondenzační turbína." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-316410.

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The aim of this Master’s thesis is to design a steam condensing turbine with three bleeds. First, a heat balance of the steam cycle is calculated, followed by thermodynamic and stress calculation of the turbine blading and design of a gland steam system and drain system. A price proposal is suggested for the given steam turbine. In the end, a design drawing of the steam turbine is constructed.

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21

Zouhar, Adam. "Parní turbína - tvorba a odvod kondenzátu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400499.

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Master thesis is dealing with the issue of condensate creation and removal from the Nesher Ramle steam turbine during start-up and steady state. At the beginning a preliminary calculation of heat balance and the turbine itself is done. It is followed by description and design of drainage system supplemented by calculation of the steam flow through the orifices. Steam flow calculation was done via S. D. Morris, Pavelek with Kalčík and Ambrož, all three methods were compared. The main goal is the theoretical calculation of the amount of condensate created during start-up which is influenced by i

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22

Khabrana, Ahmed, and Jaber Ageeli. "Producing Electricity in Power Plant." Thesis, Blekinge Tekniska Högskola, Institutionen för tillämpad signalbehandling, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-1979.

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Abstract This Bachelor thesis has been written at the Blekinge Institute of Technology. The thesis describes electricity production in Shoaiba Steam Power plant in Saudi Arabia. Shoaiba Power Plant is located 100 km South of Jeddah city in Saudi Arabia. Total power production ability reaches 4400 MW. Shoaiba Power Plant has two stages and is constructed with 11 units, each unit produces 400 MW at line voltage 24 kV and line current 16 kA. Main pieces of equipment and their function in the station are as follows: A Steam Generator (boiler), produces steam by burning natural gas or crude oil in

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23

Chávez, Palomino Ronald Eder. "Controlador híbrido PID-Fuzzy baseado na inferência Takagi-Sugeno para a regulação de tensão e de frequência /." Ilha Solteira, 2019. http://hdl.handle.net/11449/181452.

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Orientador: Carlos Roberto Minussi<br>Resumo: Nesta pesquisa apresentam-se os principais conceitos gerais de estabilidade elétrica, assim como suas divisões e classificações, onde são desenvolvidas as condições de operação de um sistema elétrico de potência, que são relevantes nos estudos de estabilidade angular do rotor, tensão e frequência. Para os estudos de estabilidade da frequência e de tensão é preciso conhecer os equipamentos como os reguladores de tensão e frequência, em consequência é apresentada a modelagem matemática de vários componentes dinâmicos como o sistema de excitação, esta

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24

GALARDI, EMANUELE. "Development of Innovative Modelling, Real Time and Hardware In the Loop Techniques for Industrial Systems." Doctoral thesis, 2017. http://hdl.handle.net/2158/1080941.

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Hardware In the Loop (HIL) simulations are testing tools that have been widely applied in recent years for the design and testing of components and systems. In particular, a part of the real environment is inserted in the simulation loop. The HIL architecture, whose nature results partly physical and partly simulated, is employed to test a component or system in Real Time (RT). The continuous development of technologies for the fast prototyping of RT code has contributed to speed up the diffusion of complex HIL testing techniques. However, this approach still appears to be poorly followed in t

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25

Yang, Jieh Ming, and 楊介銘. "The Operational Study of Steam Turbine Cogeneration System." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/64966330531912681192.

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26

Lee, Cheng-Chun, and 李正俊. "Kinematic Analysis and System Identification of a Steam-Turbine Control-Valve Mechanism." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/53205501166478998136.

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碩士<br>國立高雄第一科技大學<br>機械與自動化工程所<br>93<br>The purpose of this study is to propose the procedures of kinematic analysis and identification of the turbine control valve mechanism which is a G.E. Company’s Large Steam Turbine in Taipower Fossil Power Plant. By using the geometric equations formulation and kinematic analysis, the mathematical model of the mechanism is obtained. The derivate results are substituted to the geometric equations based on Newton-Ralphson method and the kinematic analysis of the mechanism are obtained by numerical simulations. Moreover, the real-coded genetic algorithm (RGA

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27

Chang, Hsu-Hung, and 張旭宏. "The optimization of steam turbine and cooling tower system and the tuning of control system." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/wpgzjw.

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28

Chen, Jung-Fan, and 陳榮芳. "Simulating Dynamic Behavior of a Steam-Turbine Power Generation system at Incinerator Plant." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/95278645080686969627.

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碩士<br>國立高雄應用科技大學<br>電機工程系碩士班<br>95<br>This thesis presents the dynamic behavior simulation of a steam-turbine power generation system at incinerator plant operating in normal and abnormal situations. The models of the system components included prime mover model, synchronous generator model, excitation system model, three-phase power transformer model, induction motor model, and static load model. They were developed to cater for the dynamic behavior of the system using Simulink and SimPowerSystems. Varying calorific value of the waste was considered in the simulations, and the simulation resu

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29

Wen-KaiFeng and 馮文凱. "Suppression of Subsynchronous Resonance in Hybrid Steam-Turbine and Offshore Wind-Turbine Generation System Using an Interline Power Flow Controller." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/wsq2y4.

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30

Chen, Jiann-Cheng, and 陳健誠. "The Effects of Power System Unbalance on Corrosion Fatigue Expenditure of the Low-Pressure Steam Turbine Blades." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/34213049714601280330.

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碩士<br>國立中山大學<br>電機工程學系研究所<br>86<br>This thesis attends to study the damage on the blades of low-pressure steam turbines caused by 120 Hz negative sequence current of power system unbalance under corrosive environment .The vibrant damage to the steam turbine blades arising from power system disturbances has been discussed in many researches. The major difference in this paper from other studies is to investigate the influences of small disturbances to final stage blades of low-pressure steam turbine. 　　The thesis uses conversion methods from the mechanical elements of turbine-generator shafts a

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31

Tsai, Jong-ian, and 蔡忠諺. "Torsional Torques and Fatigue Life Expenditure for Large-Scale Steam Turbine-Generator Shafts and Blades Due to Power System Harmonics." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/61034261955865217022.

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博士<br>國立中山大學<br>電機工程學系研究所<br>92<br>During the three decades, the torsional impact on turbine-generator sets due to power system disturbances has been extensively discussed in many research works. However, most of them are focused on the fatigue damage of turbine shafts due to large-signal disturbances. For example, network faults occur. Obviously, the torsional effect subject to small-signal disturbances has not received much attention. In fact, although the small disturbances would not immediately damage the turbine mechanism, the cumulative long-term damaging effects may not be negligible un

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32

Pranoto, Bayu, and 尤卞藤. "Performance characteristic modeling of hybrid proton conducting solid oxide fuel cell (pSOFC) and micro gas turbine (MGT) system using a double bypass valve for heat management." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/20543560654441914584.

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碩士<br>國立中央大學<br>機械工程學系<br>104<br>Abstract Conducting Proton-Solid Oxide Fuel Cell (pSOFC), by attaching Micro Gas Turbine (MGT) is oneof the outstanding hybrid system nowadays. The intermediate temperature of pSOFC (around 700 – 800 [0C])is used to raise the performance of micro gas turbine in apower plantsystem. pSOFC has a lower temperature characteristic than old type of SOFC, which can afford more rapid start up/down and improve durability. A new model is proposed in the research based on themodels developed by earlier researchers.The proposed hybrid system is simulated using Matlab-Simuli

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33

Lutsch, Thorsten. "Theoretische und experimentelle Untersuchungen zum integrierten Gas-Dampf-Prozess auf System- und Komponentenebene mit Fokus auf industrielle Kraft-Wärme-Kopplung." 2020. https://tud.qucosa.de/id/qucosa%3A75720.

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Im industriellen Bereich erfolgt die Energiebereitstellung auf thermischer, wie elektrischer Seite zunehmend mittels hocheffizienter Kraft-Wärme-Koppelung (KWK). Konventionelle KWK-Anlagen ohne Dampfturbine (DT) verfügen technologiebedingt über eine relativ starre, lastabhängige Stromkennzahl. Damit kann eine wärme- und/oder stromseitige Volatilität schlecht kompensiert werden ohne die jeweils gekoppelte Größe zu beeinflussen. Der integrierte Gas-Dampf-Prozess (GiD-Prozess) zeichnet sich aufgrund der halboffenen Prozessgestaltung durch eine anlagentechnisch sehr einfache Bauweise und damit geg

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