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Journal articles on the topic 'Bypass system of steam turbine'

Author: Grafiati

Published: 28 June 2021

Last updated: 29 July 2025

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1

Aminov, Rashid, and Alexandr Moskalenko. "Efficiency of steam turbines with bypass steam distribution for primary frequency control in power systems." Energy Safety and Energy Economy 5 (October 2021): 9–17. http://dx.doi.org/10.18635/2071-2219-2021-5-9-17.

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This paper evaluates efficiency of steam turbines with bypass steam distribution involved in a process of primary frequency control in power systems. We calculated power of a steam turbine and power unit in general, and absolute electrical efficiency for both bypass and throttle steam distribution. It was found that bypass steam distribution increases absolute electrical efficiency of steam-gas units while operation under lower capacity. Economic indicators calculated for combined cycle gas units confirm effectiveness of steam turbines with bypass steam distribution involved in primary frequen

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2

Sun, W., and Y. Wang. "Selection of steam turbine bypass system." IOP Conference Series: Earth and Environmental Science 354 (October 25, 2019): 012066. http://dx.doi.org/10.1088/1755-1315/354/1/012066.

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3

Arakelyan, E. K. "Ways to increase the maneuverability characteristics of the CCGT when operating in load control modes (for example, CCGT-450)." Power engineering: research, equipment, technology 25, no. 1 (2023): 58–73. http://dx.doi.org/10.30724/1998-9903-2023-25-1-58-73.

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THE PURPOSE The article is devoted to the analysis of the problems that arise during the operation of heating CCGTs of the type CCGT-450 at reduced loads with their participation in the regulation of electrical and thermal loads. The description of the main limitations of the adjustment range of gas turbines, and the maneuverability characteristics of the CCGT, an analysis of some existing technical proposals for expanding the adjustment range is given. It is shown that the application of these proposals, expanding the boundaries of the adjustment range in small quantities, does not solve the

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4

Pugi, Luca, Emanuele Galardi, Carlo Carcasci, and Nicola Lucchesi. "Hardware-in-the-loop testing of bypass valve actuation system: Design and validation of a simplified real time model." Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 231, no. 2 (2016): 212–35. http://dx.doi.org/10.1177/0954408915589513.

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During the start-up and shut-down phases of steam power plants many components are subjected to pressure and temperature transients that have to be carefully regulated both for safety and reliability reasons. For this reason, there is a growing interest in the optimization of turbine bypass controllers and actuators which are mainly used to regulate the plant during this kind of operations. In this work, a numerically efficient model for real-time simulation of a steam plant is presented. In particular, a modular Simulink™ library of components such as valves, turbines, and heaters has been de

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Arakelyan, Edik, Alexander Andryushin, Fedor Pashchenko, Sergey Mezin, Konstantin Andryushin, and Anatoly Kosoy. "Increasing the reliability and manoeuvrability of the CCGT when operating in the variable part of the power consumption schedules by switching the CCGT steam turbine to the motor mode." E3S Web of Conferences 216 (2020): 01089. http://dx.doi.org/10.1051/e3sconf/202021601089.

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The report is devoted to the problem of increasing the reliability and manoeuvrability of the CCGT when it operates in power control modes of the power system. The generalized results of research on improving the reliability and expanding the adjustment range of the PGU-450 based on the use of bypass steam distribution, reducing the duration of start-up operations and increasing the loading speed of the steam turbine and CCGT in general in the modes of CCGT power reserve during the night load gap by transferring the CCGT steam turbine to the motor mode when the CCGT operates in the condensatio

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6

Lu, Chuntian, Jianjun Yang, and Qiang Zhang. "Pressure Transient Analysis on the Condenser of the HPR1000 Nuclear Power Unit." Energies 17, no. 5 (2024): 1210. http://dx.doi.org/10.3390/en17051210.

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The transient characteristics of pressure in the condenser under fault conditions have a crucial impact on the safe operation of the entire nuclear power plant. In order to ascertain whether the condenser pressure of a HPR1000 nuclear power unit meets the requirements of the steam generator, this paper establishes a mathematical model of the condenser, along with the connected steam turbine bypass steam system and circulating water system, based on Apros. The accuracy of the simulation model is verified by comparing the coasting curve of the circulating water pump with the flow change curve un

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7

Jelínek, Tomáš, Petr Straka, and Milan Kladrubský. "Aerodynamic Characteristics of Steam Turbine Prismatic Blade Section." Applied Mechanics and Materials 821 (January 2016): 48–56. http://dx.doi.org/10.4028/www.scientific.net/amm.821.48.

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For the needs of high-performance steam turbines producer the data of a blade section measurement have been analyzed in detail using an experimental and numerical approach. The blade section is used on prismatic blades in high and medium pressure steam turbine parts. The linear blade cascade was tested at four pitch/chord ratios at two different stagger angles. The blade cascade was tested under two levels of Reynolds number in the range of output izentropic Mach numbers from 0.4 to 0.9.The inlet of the test section was measured pitch-wise by five-hole probe to determine the inlet flow angle.

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8

Amano, R. S., and G. R. Draxler. "High-Pressure Steam Flow in Turbine Bypass Valve System Part 1: Valve Flow." Journal of Propulsion and Power 18, no. 3 (2002): 555–60. http://dx.doi.org/10.2514/2.5996.

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9

Amano, R. S., G. R. Draxler, and J. M. Golembiewski. "High-Pressure Steam Flow in Turbine Bypass Valve System Part 2: Pipe Flow." Journal of Propulsion and Power 18, no. 3 (2002): 561–71. http://dx.doi.org/10.2514/2.5997.

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10

Wang, Hui, Xiu Ji, Liao Xu, Hong Zhang, and Yinping An. "Analysis on overall energy efficiency and flexibility of thermal integrated energy system." Thermal Science 27, no. 2 Part A (2023): 975–81. http://dx.doi.org/10.2298/tsci2302975w.

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In order to solve the problem of energy consumption, improve the efficiency of energy utilization and develop new energy, the total energy consumption and fluctuation of thermal integrated energy were analyzed. Four suggestions are put forward for the integrated power system of flexible thermal power plant, namely, electric heat storage system, electric heat pump heat storage system, g, heating system and high pressure heating system via steam turbine, which can improve the air energy consumption capacity of the system and reduce the total coal consumption of the system. Among them, in the cas

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11

Lunghi, P., and S. Ubertini. "Efficiency Upgrading of an Ambient Pressure Molten Carbonate Fuel Cell Plant Through the Introduction of an Indirect Heated Gas Turbine." Journal of Engineering for Gas Turbines and Power 124, no. 4 (2002): 858–66. http://dx.doi.org/10.1115/1.1492839.

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The efficient end environmentally friendly production of electricity is undoubtedly one of the 21st century priorities. Since renewable sources will be able to guarantee only a share of the future demand, the present research activity must focus on innovative energy devices and improved conversion systems and cycles. Great expectations are reserved to fuel cell systems. The direct conversion from chemical to electrical energy eliminates environmental problems connected with combustion and bypass the stringent efficiency limit due to Carnot’s principle. Still in infancy, high-temperature fuel c

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12

Strušnik, Dušan, and Jurij Avsec. "DAMAGE ANALYSIS OF CONDENSER COOLING TUBES IN A THERMAL POWER PLANT." Journal of Energy Technology 17, no. 1 (2025): 11–19. https://doi.org/10.18690/jet.17.1.11-19.2024.

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A steam turbine condenser (STC) is a surface, shell, and tube type vacuum condenser, cooled by a water system supplied from a river. The STC consists of two water passes and two water flows. Its condenser shell is constructed from carbon steel, and contains 4910 cooling tubes made of CuZn28Sn1As brass, each with dimensions of 23.0 x 1.0 mm and a length of 6,400 mm. Three new steam dump devices (SDDs) have been installed on the condenser. Two SDDs are designated for high-pressure (HP) steam, while one is allocated for intermedia-pressure (IP) steam. The primary function of the SDDs is to divert

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13

Farhansyah, Farhansyah, Alvera Apridalianti Melkias, and Ignatius Riyadi Mardiyanto. "Analisis Penggunaan Sistem Parabolic Trough Collector pada Bypass High Pressure Heater PLTU 600 MW." Jurnal Surya Teknika 11, no. 1 (2024): 455–60. http://dx.doi.org/10.37859/jst.v11i1.7429.

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The regenerative process involves heating the feedwater out of the condenser using residual steam or extraction from the steam turbine and then pumping it back into the boiler. To achieve the greenhouse gas emission reduction target set by the Government of the Republic of Indonesia, power plant managers need to consider strategies to reduce these emissions. One strategy that can be taken is to harness solar energy through parabolic trough type solar collectors. In PLTUXYZ, the design of a parabolic trough type solar collector is carried out on bypasses HPH 6 through HPH 8 using system advisor

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14

Konovalov, Dmytro, Roman Radchenko, Halina Kobalava, Anatolii Zubarev, Vyacheslav Sviridov, and Victoria Kornienko. "Analysing the efficiency of thermopressor application in the charge air cooling system of combustion engine." E3S Web of Conferences 323 (2021): 00017. http://dx.doi.org/10.1051/e3sconf/202132300017.

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As the analysis of the research results has shown, the use of a thermopressor makes it possible to increase the fuel and energy efficiency of a ship power plant in a wide range of the operation parameters. It can be achieved by cooling the charge air before the engine inlet receiver and by reducing the compression work of the turbocharger. A scheme with the thermopressor application in the cooling system of a low-speed main engine and in the system for utilizing the exhaust gases heat in a heat recovery boiler of one and two pressures was proposed. The use of thermopressors led to a decrease i

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15

Kislov, Oleg, та Mariia Shliakhova. "Порівняння параметрів потоку перед силовою турбіною при фронтальному та нормальному підведенні повітря, що перепускається з компресора". Aerospace Technic and Technology, № 4 (29 серпня 2024): 15–23. http://dx.doi.org/10.32620/aktt.2024.4.02.

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The subject of this article is the impact of air delivery method bypassed from the compressor to the power turbine of a turboshaft gas turbine engine (GTE). The relevance of this GTE scheme is due to efforts to improve the efficiency of converting heat into work and to address the issue of ensuring stable compressor operation in throttling modes with a high compression ratio. A high compression ratio is necessary because increasing the cycle parameters, such as the heating degree and the pressure ratio of the working fluid, is essential for improving the overall efficiency of the GTE. One effe

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16

Zou, Wangzhi, Zhaoyun Song, Baotong Wang, Mengyang Wen, and Xinqian Zheng. "An efficient multi-fidelity simulation approach for performance prediction of adaptive cycle engines." Journal of the Global Power and Propulsion Society 8 (August 29, 2024): 310–22. http://dx.doi.org/10.33737/jgpps/191167.

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Adaptive cycle engine (ACE) with multi-stream, modulated bypass ratio, and high-thrust/high-efficiency mode provides the capability of multiple mission adaptation for the next-generation aviation propulsion system. The low-fidelity zero-dimensional (0D) performance simulation method is commonly adopted in conventional engines such as turbofan and turbojet. However, it is hard to accommodate well to ACE with complex variable geometry schemes and strong interaction between components. This paper presents an efficient multi-fidelity simulation approach, often referred to as component zooming, for

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17

Kang, Soo Young, Jeong Ho Kim, and Tong Seop Kim. "Influence of steam injection and hot gas bypass on the performance and operation of a combined heat and power system using a recuperative cycle gas turbine." Journal of Mechanical Science and Technology 27, no. 8 (2013): 2547–55. http://dx.doi.org/10.1007/s12206-013-0639-0.

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18

Kals, W. "Condensing the Dumped Steam During a Turbine Bypass." Journal of Engineering for Gas Turbines and Power 114, no. 4 (1992): 621–31. http://dx.doi.org/10.1115/1.2906635.

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The reaction of water-cooled and wet-surface air-cooled condensers to a bypass of the steam turbine is analyzed by the introduction of an indicant. Gas dynamics considerations for designing the breakdown of the steam pressure are included. SI metric units are compared with gravitational metric units in order to clarify the fundamental difference between these two systems of measure. Conditioning the steam before admission to the condenser involves desuperheating, which is analyzed on the basis of a heat balance.

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19

Chen, Fang, Zhuhai Zhong, Kunlun Bai, Honglin Liu, and Ming Luo. "The Effect of High-Speed Steam Discharged from the Bypass Diffusers on Low-Pressure Turbine Blades." Processes 12, no. 7 (2024): 1459. http://dx.doi.org/10.3390/pr12071459.

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Bypass diffusers are used to drain the excess steam generated in the steam generator in case of sudden load reduction or shutdown of the steam turbine. However, the steam at the orifice outlet with the high flow velocity may reverse into the space of last-stage blades and cause forced vibration of the turbine blades. For this study, a full-scale CFD calculation model which couples the last stage and the second-last stage with the bypass diffusers was constructed. The fluid dynamic characteristics of the high-speed steam discharged from the outlet of the bypass diffusers and the effect of steam

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20

Kim, Kyoung Hoon. "Effects of Water and Steam Injection on Thermodynamic Performance of Gas-Turbine Systems." Applied Mechanics and Materials 110-116 (October 2011): 2109–16. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.2109.

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The water and steam injection gas-turbine systems are comparatively investigated. Thermodynamic performances of the regenerative after-fogging gas-turbine (RAF) system, steam-injection gas-turbine (STIG) system, and the regenerative steam-injection gas-turbine (RSTIG) system are analyzed parametrically. Using the analytic model, the important system variables such as thermal efficiency, fuel consumption, specific power, and specific emission of CO2 gas are evaluated in terms of pressure ratio and water or steam injection ratio. The numerical results show that water or steam injection results i

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21

ISLAMI, ILHAM AKBAR. "Keywords: care, maintenance, ste PERAWATAN DAN PEMELIHARAAN PADA TURBIN UAP DI PLTU REMBANG." Jurnal Energi Dan Manufaktur 15, no. 2 (2023): 80. http://dx.doi.org/10.24843/jem.2022.v15.i02.p03.

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Steam Power Plants (PLTU) currently have a strategic role in the electricity system in Indonesia. The maintenance system implemented by the steam power plant company will greatly affect the sustainability of the electricity produced. The steam power plant has several main parts in its production system, one of which is the turbine. The purpose of this research is to answer how to maintain the steam turbine at the Rembang Steam Power Plant (PLTU). The method used in this research is descriptive qualitative. Data collection was carried out through direct observation and interviews with related p

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22

Mrzljak, Vedran, Jasna Prpić-Oršić, and Igro Poljak. "Energy Power Losses and Efficiency of Low Power Steam Turbine for the Main Feed Water Pump Drive in the Marine Steam Propulsion System." Journal of Maritime & Transportation Science 54, no. 1 (2018): 37–51. http://dx.doi.org/10.18048/2018.54.03.

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Steam turbine for the main feed water pump (MFP) drive is a low power turbine, for which energy power losses and energy efficiency analysis are presented in this paper. The MFP steam turbine analysis has been performed within a wide range of turbine loads. The influence of steam specific entropy increment of the real (polytropic) steam expansion upon the MFP turbine energy power losses and energy efficiency has been investigated. During all the observed loads MFP steam turbine energy power losses were in the range between 346.2 kW and 411.4 kW. The MFP steam turbine energy power losses and ene

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23

Paryanto, Paryanto, Rizqi Diaz Surya, and Rusnaldy Rusnaldy. "Prototyping Smart Maintenance System Berbasis Augmented Reality Untuk Steam Turbine Di PLTP." ROTASI 25, no. 4 (2023): 31–42. https://doi.org/10.14710/rotasi.25.4.31-42.

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Augmented Reality adalah teknologi yang memiliki kemampuan untuk mengintegrasikan dan menghadirkan objek virtual ke dalam realitas fisik secara langsung. Penggunaan augmented reality dalam konteks perawatan dinilai dapat meningkatkan pemahaman para pekerja dalam memvisualisasikan proses perawatan dengan lebih mudah. Sehingga penulis tertarik untuk Prototyping Smart Maintenance System berbasis Augmented Reality untuk Steam Turbine di Pembangkit Listrik. Hal ini didasari oleh besarnya waktu, tenaga, biaya serta resiko yang dikeluarkan pada saat maintenance. Pada penelitian ini peneliti mengemban

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24

Mrzljak, Vedran. "Low Power Steam Turbine Energy Efficiency and Losses During the Developed Power Variation." Tehnički glasnik 12, no. 3 (2018): 174–80. http://dx.doi.org/10.31803/tg-20180201002943.

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This paper investigates low power marine steam turbine during the variation in its developed power. The turbine is used for the Main Feedwater Pump (MFP) drive. Energy analysis of the Main Feedwater Pump Turbine (MFPT) is based on the measurements performed in nine different operating regimes. The measured operating parameters were steam pressure and temperature at the turbine inlet, steam pressure at the turbine outlet, and a water volume flow through MFP. Turbine energy power losses are most influenced by steam mass flow through the turbine and by steam specific enthalpy at the turbine outle

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25

Ikeda, Kazutaka, Hideo Nomoto, Koichi Kitaguchi, Shinya Fujitsuka, and Takashi Sasaki. "F205 Development of Advanced-Ultra Super Critical Steam Turbine System(Steam Turbine-2)." Proceedings of the International Conference on Power Engineering (ICOPE) 2009.2 (2009): _2–463_—_2–468_. http://dx.doi.org/10.1299/jsmeicope.2009.2._2-463_.

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26

Solomon, Khmelnik, Kapelovich Boris, Kapelovich David, and Benenson Eugeny. "Maintenance of Power Steam Turbine." Papers of Independent Authors, ISSN 2225-6717 7 (March 16, 2008): 98–108. https://doi.org/10.5281/zenodo.3828893.

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The diagnostics system of the power steam turbine is offered. It can be executed also in the form of telediagnostic system. The system is presented on a site http://turbo.mic34.com/ . System engineering can is ordered to authors.

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27

Xiang, Bochao. "Fault Diagnosis and Performance Analysis of Steam Turbine Thermal System based on Improved BP Algorithm." Highlights in Science, Engineering and Technology 15 (November 26, 2022): 229–35. http://dx.doi.org/10.54097/hset.v15i.2269.

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Steam turbine is an important tool in the growth of power generation work in power plants, and it is of great help to the growth of power generation work. The thermal power plant needs to constantly innovate the unit when generating electricity, and the steam turbine is an important part of the operation of the unit. Therefore, this paper proposes research on fault diagnosis and performance analysis of steam turbine thermal system based on improved BP algorithm. It mainly gives an overview of the steam turbine, and uses the improved BP algorithm scientifically, hoping to provide some help for

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28

Yu, Xin Wei, Hai Ping Chen, Guang Wu Lu, Pei Gao, and Yang Yu. "Study on Application of Steam Ejector Heat Pump in Partial Innovation of Power Plant Thermal Regenerative System." Advanced Materials Research 753-755 (August 2013): 2761–65. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.2761.

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The exhaust steam heat of steam driven feed pump small steam turbine is considerable in modern coal-fired power generating unit, most of which is adopted the way of wet cooling through the condenser as same as main steam turbine for condensing steam turbine unit, all the waste heat with it is taken away by circulating cooling water and not used effectively. This paper will propose the way of part of exhausted steam of small steam turbine recycled to the regenerative extraction steam system to heat condensate based on steam ejector heat pump, so as to use the exhausted steam effectively and ana

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29

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 feasi

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30

Poljak, Igor, Vedran Mrzljak, Ivan Gospić, and Ivica Glavan. "The Change in Low Power Steam Turbine Operating Parameters During Extractions Opening/Closing." Journal of Maritime & Transportation Science 61, no. 1 (2021): 57–78. http://dx.doi.org/10.18048/2021.61.05.

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The paper presents steam turbine power, energy and exergy efficiencies and losses analysis during steam extractions opening/closing. The analyzed steam turbine can be used in steam power plant or in the marine steam propulsion system (low-power steam turbine). Steam extractions opening and closing can have a notable influence on various turbine operating parameters, what is currently purely exploited in the literature. Turbine developed power during steam extractions opening/closing is direct proportional to turbine energy and exergy losses and reverse proportional to turbine exergy efficienci

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31

Hoznedl, Michal, and Jindřich Bém. "Steam turbine flow path drainage system under different operating conditions." MATEC Web of Conferences 367 (2022): 00010. http://dx.doi.org/10.1051/matecconf/202236700010.

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One of the important elements of anti-erosion protection of the steam turbine last blades is the use of hollow stator blades. There are grooves on the blade surface that lead the steam mixture inside the blades. This mixture is blown to the diffuser area. However, the drain principle fails for low outputs of the turbine, during the so-called ventilation regimes. In the part of blade section the steam flow is reversed and the flow part drain stops working. It was confirmed using experiments of steam turbine carried out in a wide range of power outputs.

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32

Dzida, Marek. "On the possible increasing of efficiency of ship power plant with the system combined of marine diesel engine, gas turbine and steam turbine, at the main engine - steam turbine mode of cooperation." Polish Maritime Research 16, no. 1 (2009): 47–52. http://dx.doi.org/10.2478/v10012-008-0010-z.

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On the possible increasing of efficiency of ship power plant with the system combined of marine diesel engine, gas turbine and steam turbine, at the main engine - steam turbine mode of cooperation This paper presents a concept of a ship combined high-power system consisted of main piston engine and associated with it: gas power turbine and steam turbine subsystems, which make use of energy contained in exhaust gas from main piston engine. The combined system consisted of a piston combustion engine and an associated with it steam turbine subsystem, was considered. An algorithm and results of ca

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33

Bubnov, K. N., V. P. Zhukov, A. V. Golubev, E. V. Barochkin, and S. I. Shuvalov. "System for continuous monitoring of technical condition and maintenance diagnostics of steam turbine." Vestnik IGEU, no. 4 (August 31, 2023): 85–93. http://dx.doi.org/10.17588/2072-2672.2023.4.085-093.

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Power equipment deterioration occurs during operation, it causes loss in reliability and efficiency, unscheduled shutdowns, and accidents. Now predictive analytics is one of the promising directions in the field of power engineering which allows to control and analyze the technical condition of power equipment. The problems of localization of deviation of technological parameters and detection of anomaly in the operation of power equipment are consistently solved in the framework of predictive analytics. The problems of deviations localization and anomalies detection are solved by the methods

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34

Zhang, Yong Sheng, and Ying Tang. "Research on Steam Discharge System Based on Pressure Control Mode." Applied Mechanics and Materials 529 (June 2014): 569–73. http://dx.doi.org/10.4028/www.scientific.net/amm.529.569.

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In order to keep the balance of the inside and outside energy of steam power system, the main steam pressure must be effectively controlled under maneuvering condition or accident condition. A set of lumped parameter model of steam discharge system was established, its control system was designed based on the pressure control mode and the simulation of steam turbine trip accident condition was calculated. Result shows that the steam discharge control system could make the steam discharge valve open in time under accident condition. Some steam could be discharged into condenser directly through

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35

Kail, C. "Evaluation of Advanced Combined Cycle Power Plants." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 212, no. 1 (1998): 1–12. http://dx.doi.org/10.1177/095765099821200101.

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This report will analyse and evaluate the most recent and significant trends in combined cycle gas turbine (CCGT) power plant configurations. The various enhancements will be compared with the ‘simple’ gas turbine. The first trend, a gas turbine with reheat, cannot convert its better efficiency and higher output into a lower cost of electrical power. The additional investments required as well as increased maintenance costs will neutralize all the thermodynamic performance advantages. The second concept of cooling the turbine blades with steam puts very stringent requirements on the blade mate

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36

Liu, Jie, and Chang Yi Jin. "Research on Applications of EPKS C300 System to Steam Turbine and Boiler." Advanced Materials Research 706-708 (June 2013): 1511–15. http://dx.doi.org/10.4028/www.scientific.net/amr.706-708.1511.

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A new HONEWELL process controlling system, namely EPKS C300, was systematically introduced. Applications of the system to 7# steam turbine and 9# boiler in the Baling Petrochemical Thermal Power Division and some important controlling strategies have been briefly investigated. EPKS C300 was used for the technical reform of the steam turbine and boiler. SCM sequence control, drum level three impulse control and DEH system modification were implemented on the boiler. With the help of FSSS system, furnace safety monitoring, automatic speed regulation of steam turbine unit, load automatic control

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37

Abdullah, H. M., G. Mustafa, K. S. Chaudri, and M. Abid. "Modeling of an Extraction Steam Turbine and Speed Control System Design." Nucleus 57, no. 4 (2021): 112–17. https://doi.org/10.71330/nucleus.57.04.618.

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Steam-driven power plants essentially convert mechanical energy into electrical energy by using steam turbines. It is imperative to control the speed of the turbines as the frequency of the power system depends on it. This paper presents a model of a steam turbine containing three steam extractions from the intermediate-pressure section and four extractions from the low- pressure section. The underlying methodology for modeling is the continuity equation of a steam vessel. As the input variables, the model uses the valve opening degree of different valves, namely high-pressure valve, reheater

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Abdullah, H. M., G. Mustafa, K. S. Chaudri, and M. Abid. "Modeling of an Extraction Steam Turbine and Speed Control System Design." Nucleus 57, no. 4 (2021): 112–17. https://doi.org/10.71330/thenucleus.2020.618.

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Steam-driven power plants essentially convert mechanical energy into electrical energy by using steam turbines. It is imperative to control the speed of the turbines as the frequency of the power system depends on it. This paper presents a model of a steam turbine containing three steam extractions from the intermediate-pressure section and four extractions from the low- pressure section. The underlying methodology for modeling is the continuity equation of a steam vessel. As the input variables, the model uses the valve opening degree of different valves, namely high-pressure valve, reheater

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Dzida, Marek, and Wojciech Olszewski. "Comparing combined gas tubrine/steam turbine and marine low speed piston engine/steam turbine systems in naval applications." Polish Maritime Research 18, no. 4 (2011): 43–48. http://dx.doi.org/10.2478/v10012-011-0025-8.

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Comparing combined gas tubrine/steam turbine and marine low speed piston engine/steam turbine systems in naval applications The article compares combined systems in naval applications. The object of the analysis is the combined gas turbine/steam turbine system which is compared to the combined marine low-speed Diesel engine/steam turbine system. The comparison refers to the additional power and efficiency increase resulting from the use of the heat in the exhaust gas leaving the piston engine or the gas turbine. In the analysis a number of types of gas turbines with different exhaust gas tempe

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Sun, Yue Tai, Xiao Zhi Qiu, Yu Zhen Chen, and Bao Hua Huang. "The Impact Analysis of Regenerative System in Turbine Modeling." Advanced Materials Research 860-863 (December 2013): 1782–86. http://dx.doi.org/10.4028/www.scientific.net/amr.860-863.1782.

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The simulation of the reheat condensing steam turbine model that BPA and integrated power system stability calculation procedure given, has a large deviation with the actual experimental data. This model does not consider the regenerative steam extraction module, thus ignoring the storage effect of the regenerative steam extraction module. By analyzing the principles of reheat condensing steam turbines thermal process, based on the real turbine structure, establish multi-stage regenerative steam extraction model. Through dynamic simulation of the model was analyzed and compared with the actual

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Alnahhal,, Mohamed, Mohamed Elnaggar, and Maher Ghazal. "Improvement of Steam Power Plants Performance Using a Heat Exchanger." Israa University Journal for Applied Science 3 (October 1, 2019): 116–32. http://dx.doi.org/10.52865/wxks1395.

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The present work focuses on the improvement of the ideal Rankine cycle performance used in steam power plants. Improving the steam power plant efficiency, or its components performance is desirable where the absence of renewable energy power conversion systems and the shortage of conventional fuels sources take place. The present work studies the possibility of using a counter flow heat exchanger along with the main components of the ideal Rankine cycle. The proposed counter flow heat exchanger will include the flow of compressed liquid exiting the pump and the flow of superheated steam exitin

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Adi, Hesmi Rafsanjani, and Dwi Mulyono. "OPTIMALISASI PERFORMA STEAM TURBINE TC2F - 33.5 DI PEMBANGKIT LISTRIK TENAGA GAS UAP." Prosiding Seminar Nasional Teknologi Energi dan Mineral 3, no. 1 (2023): 33–41. http://dx.doi.org/10.53026/sntem.v3i1.1291.

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Pembangkit Listrik Tenaga Gas Uap (PLTGU) merupakan unit sistem yang melakukan siklus gabungan (combine cycle) antara siklus pada Gas Turbine dan Steam Turbine. Unit ini memiliki 3 (tiga) Blok sistem unit, pada masing-masingnya memiliki 3 Gas Turbine, 3 Heat Recovery Steam Generator (HRSG) dan 1 Steam Turbine. Pada Blok 1, menurut standarisasi operasinya telah beroperasi dengan batas waktu operasi maksimum, sehingga dilakukannya Major Overhaul System. Pada Steam Turbine Blok 1 PLTGU, perlu dilakukannya evaluasi unjuk kerja sebelum dilakukannya overhaul, karena agar dapat mengetahui perubahan e

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Zhang, Ding, Bohong Zhang, and Ze Zhang. "Feasibility of cooling the steam turbine with the remaining heat of the nuclear island." Journal of Physics: Conference Series 3031, no. 1 (2025): 012011. https://doi.org/10.1088/1742-6596/3031/1/012011.

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Abstract The maintenance of the nuclear power unit needs to cool the steam turbine. The fast cooling of the steam turbine can effectively shortcut the cooling duration. Many fast cooling systems use the steam supplied by the nuclear island to rotate the steam turbine. Therefore many nuclear plants start the shutdown process of the nuclear island only after the steam turbine has been cooled. If the remaining heat of the nuclear island can meet the demand of the fast cooling system, the shutdown process of the nuclear island and the fast cooling of the steam turbine can be done at the same time.

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Pan, Tongyang, Jifan Zhang, Jiannan Kang, and Mingcheng Li. "The application of modified thermodynamic system correction method to secondary reheat steam turbine." MATEC Web of Conferences 355 (2022): 02058. http://dx.doi.org/10.1051/matecconf/202235502058.

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In order to calculation the enthalpy of wet steam in the secondary reheat turbine thermal system the thermodynamic system of the secondary reheat steam turbine based on the isentropic ideal expansion process line was corrected, This method simplifies the correction calculation step and increases the accuracy of the correction result. Analysis of the rationality of the improved method shows that: Compared with the existing secondary reheat steam turbine thermal system correction method, the maximum error of the improved thermal system correction method is 0.14%. Therefore, this method can bette

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Dulau, Mircea, and Dorin Bica. "Simulation of Speed Steam Turbine Control System." Procedia Technology 12 (2014): 716–22. http://dx.doi.org/10.1016/j.protcy.2013.12.554.

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Mazur, Z., G. Urquiza, and R. Campos. "Improvement of the Turbine Main Stop Valves with Flow Simulation in Erosion by Solid Particle Impact CFD." International Journal of Rotating Machinery 10, no. 1 (2004): 65–73. http://dx.doi.org/10.1155/s1023621x04000077.

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The flow field in a steam turbine main stop valve bypass valve (MSVBV) has been investigated by means of CFD simulations. Because the entire flow to the turbine during start ups is carried by the MSVBV it is subject to serious solid particle erosion problems and requires frequent replacement to avoid the catastrophic damage which can occurred when the MSVBV skirt eroded through causing large pieces of metal to be carried directly into the turbine. For some of the most important geometric parameters of the MSVBV, design recommendation have been made.

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Song, Guang Xiong, Yu Jiong Gu, Yong Yong He, and Fu Lei Chu. "A Steam Turbine Fault Diagnostic System Based on the Web and Database Technologies." Key Engineering Materials 413-414 (June 2009): 539–46. http://dx.doi.org/10.4028/www.scientific.net/kem.413-414.539.

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The steam turbine is the principal mover in the field of electric power generation. It is very important and necessary to monitor and evaluate the running conditions and diagnose the faults of the steam turbine for the safe and normal running of the electric power plant. Fault diagnosis of the steam turbine is a complicated process and requires high level of the expertise. In order to significantly reduce the cost consumed in the fault diagnosis, increase the consistency of diagnosing decision-making, and better utilize the turbine’s management information resource, in this paper, an integrate

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Xu, Siyu, Mingxin Wang, Kai Li, et al. "Stability analysis of the turbine rotor system with foundation support under impact excitation." Journal of Physics: Conference Series 2369, no. 1 (2022): 012024. http://dx.doi.org/10.1088/1742-6596/2369/1/012024.

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Considering the stability changes of the whole steam turbine system with and without shock excitation, based on the combined methods of modeling simulation, multi-point analysis and multi-feature map analysis, the support structure of the whole steam turbine rotor under the action of unbalance and shock excitation is analyzed. Stability changes were analyzed. By analyzing the time-domain waveform, frequency spectrum and axis locus of the model casing, the typical support points of the high-pressure rotor section and the low-pressure rotor section under the sudden shock excitation and unbalance

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Qian, Wei, Jiawei Qiao, Bin Li, Xing Zheng, Zongming Zheng, and Xianbin Xiao. "Techno-economic analysis of 30MW biomass power plant modification for heating supply." E3S Web of Conferences 341 (2022): 01026. http://dx.doi.org/10.1051/e3sconf/202234101026.

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Biomass combined heat and power (CHP) generation is the more efficient use of biomass compared the direct combustion power generation. The techno-economic analysis of 30 MW biomass direct combustion power set’s modification for heat supply is investigated in this work. Three schemes are employed to provide the district heating supply, including low vacuum condenser, steam extraction, and turbine bypass. The low vacuum condenser approach is the most promising based on the techno-economic analysis. The calculated outlet pressure of the steam turbine, the power generation capacity, the heating su

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Zhao, Gang, Dong Xiang Jiang, Kai Li, and Jin Hui Diao. "Data Mining for Fault Diagnosis and Machine Learning for Rotating Machinery." Key Engineering Materials 293-294 (September 2005): 175–82. http://dx.doi.org/10.4028/www.scientific.net/kem.293-294.175.

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Data mining is used not only for database analyses, but also for machine learning. The data mining technique described in this paper was used for steam turbine fault diagnostics based on continuous data measurements. The classification rules are based on standardized vibration frequency data for steam turbines and field experts’ analyses of turbine vibration problems. The expert knowledge enables the steam turbine fault diagnosis system to be more powerful and accurate. The system can identify twenty types of standard steam turbine faults. The system was developed using 2000 simulated data set

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