Steam turbine power prediction based on encode-decoder framework guided by the condenser vacuum degree. [PDF]
PLoS ONE, 2022 The steam turbine is one of the major pieces of equipment in thermal power plants. It is crucial to predict its output accurately. However, because of its complex coupling relationships with other equipment, it is still a challenging task.
Yanning Lu +10 more
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Parametric design and multiple objective intelligent optimization of marine nuclear turbine aerothermodynamics under variable conditions [PDF]
Scientific ReportsOur goal is to improve the aerothermodynamics performance of the marine nuclear-powered turbine and control the exhaust humidity of the blade grid, thereby improving the operating efficiency and power of the turbine and ensuring safety.
Lei Zhang +3 more
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Effects of Magnetic Mark Display on Mechanical Properties of Laser-Enhanced 17-4PH Blades [PDF]
Cailiao Baohu, 2023 In order to enhance the corrosion resistance of the 17-4PH low-pressure last stage blades，the steam inlet side of the 17-4PH blades needs to be treated with laser-enhanced solid solution.The last stage blades treated with laser solution often show ...
HAN Liang, GONG Wei-xing, FENG Tian-shu, WANG Jian-ze
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Comparative analysis of power distribution, exergy losses and exergy efficiencies of the 200 MW steam turbine for three operating modes with and without turbine steam extraction [PDF]
Tehnika, 2021 The paper calculates the power, exergy losses and exergy efficiencies of the high, medium and low pressure steam turbine, as well as the total exergy losses and exergy efficiency of the 200 MW steam turbine.
Ćehajić Nurdin I. +1 more
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Influence of reheat pressure on reheat cycle economy [PDF]
E3S Web of Conferences, 2021 After steam expands to a certain intermediate pressure in steam turbine, it is led out of steam turbine and sent to reheater of boiler. The steam is heated to the initial temperature by constant pressure in the reheater.
Wang Yarong, Wang Peirong
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Local Buckling-Induced Forming Method to Produce Metal Bellows
Chinese Journal of Mechanical Engineering, 2023 A novel buckling-induced forming method is proposed to produce metal bellows. The tube billet is firstly treated by local heating and cooling, and the axial loading is applied on both ends of the tube, then the buckling occurs at the designated position ...
Tianyin Zhang +4 more
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Multi-Task Data Imputation for Time-Series Forecasting in Turbomachinery Health Prognostics
Machines, 2022 Time-series forecasting is the core of the prognostics and health management (PHM) of turbomachinery. However, missing data often occurs due to several reasons, such as the failure of sensors. These partially missing and irregular data greatly affect the
Xudong Chen +6 more
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Model research of the energy efficiency of a cogeneration backpressure steam turbine installation [PDF]
E3S Web of Conferences, 2020 In the contemporary district heating systems (DHS) heat energy for the customers is generated by cogeneration method, which leads to the saving of primary energy resources compared to the separate production method.
Genovski Ivan, Hristov Kaloyan
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Development of a program code for calculating the flow paths of steam turbines with long blades [PDF]
E3S Web of ConferencesPaper is devoted to the development of software code for calculating low-pressure cylinders of steam turbines. The program code divides the steam turbine compartment with a long blades into separate stages, and also calculates these stages by sections in
Popov Vitaliy, Kovalenko Daniil
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Nihon Kikai Gakkai ronbunshu, 2016 In order to analyze the blade vibration caused by flutter, it is necessary to understand both the aerodynamic damping and structural damping of the high vibration stress. Flutter Vibration mode occurring in the rated speed is non-synchronous mode.
Ryou AKIYAMA +3 more
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