926 Result(s)
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Article
On the Thermohydroelastic (Morton) Effect in Turbine-Generator Sets
In recent years, researchers have been studying the role of journal bearings in the thermohydroelastic instability of the rotor. This phenomenon is referred to as the Morton effect. To assess this effect, we n...
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Article
Conditions for Gas Hole Formation in the Gilyuy Bay of the Zeya Reservoir
The article presents the results of the ice cover survey conducted in the Gilyuy Bay at the end of April 2023. During the survey period, gas holes confined to methane outlets from bottom sediments were discove...
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Article
Methods for Calculating Channel Processes Based on Correlation Analysis at the Tuyamuyun Hydropost of the Amu Darya River
This article presents methods for determining the relationship between the flow and hydraulic parameters of rivers, channels, and channel processes based on correlation analysis.
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Article
Some Approaches to the Repair of Cracks in the Concrete of Hydraulic Structures
Approaches to repairing cracks in the concrete of hydraulic structures are considered. Main types of cracks are identified. The technical solutions and injection materials used for crack repair are analyzed. T...
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Article
Development of Technical Solutions to Improve the Reliability of the Condensate-Feed Pipeline of the BREST-OD-300 Power Unit
A circuit analysis of the condensate-feed pipeline of operating deaeratorless turbine plants of Russian-made and international thermal stations and nuclear power plants has been performed. Using a dynamic mode...
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Article
Water Treatment Upgrade of Steam Drum Boilers Based on a VTIAMIN Reagent
The current operating conditions of the steam boilers of combined heat and power plants and the waste-fuel boilers of industrial enterprises are characterized by frequent deviations from the design chemistry i...
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Article
Condition Assessment of Power Plant Motors Using a Set of Diagnostic Methods
Questions on the joint application of various diagnostic methods in order to evaluate the technical state of the functional units of induction motors are examined. The possibility of using a set of methods of ...
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Article
Influence of the Geometric Features of Obstacles on Noise Reduction of Power Equipment
This article investigates the reduction of noise levels due to the shielding properties of obstacles in the form of buildings and barriers in the territory of the thermal power plant (TPP) at the calculation p...
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Article
Recording Seismic Events at Low-Head Dams
By analyzing the seismic records made by the automated seismometric monitoring system (ASMS) of the Nizhnekamsk HPP using the STA/LTA sliding-window algorithm, signs of typical dynamic loads were identified fo...
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Article
Stability of the Structure and Properties of PKH13M2-BN Composite Seal Material for Steam Turbines Under Long-Term Thermal Exposure
The article presents a study into the effect of long-term thermal exposure on the structure and properties of the PKh13M2-BN composite material, designed for seal structures of a flow-through section of steam ...
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Article
Discrete Wavelet Transform for Stator Fault Detection in an Induction Motor
The problem of diagnosing inter-turn short circuits (ITSC) in the stator winding of an induction motor (IM) under various load conditions is considered. The enhancement of the reliability of the operations of ...
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Article
Experience of Mosénergo CCPP Participation in Primary Frequency Control
The article presents the experience of Mosénergo in the introduction of combined-cycle power plants into participation in normalized primary frequency control. Examples of combined-cycle power plants certifica...
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Article
Analysis of the Permissibility of Load Shedding Modes of Power Unit No. 9 of the Mosénergo CHPP-22
Following the creation of power systems that combined a large quantity of generating equipment, the requirements for maneuverability of steam-powered power units in many respects became less “rigid,” since dis...
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Article
On the Oscillations of Rotors of Turbine Units
The article considers some issues of oscillations of turbine shaft assemblies, which have not yet received sufficient coverage in Russian technical literature. These include the problem of diagnosing defects t...
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Article
Determination of Sanitary Protection Zones by the Noise Factor of Modern TPPS
The issues of noise reduction from power plants, especially those located in large cities, are an urgent problem. The main sources of constant noise of modern TPPs with advanced steam turbine (ST), combined cy...
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Article
Change in Efficiency of Flow Path of Modernized and Non-Modernized Turbines Having a Capacity of 300 MW During Operation
The results of changes in the thermal efficiency of high-pressure cylinders (HPC) of active and reactive types, as well as intermediate-pressure cylinders (IPC) with stages of an improved design of turbines wi...
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Article
Experience of Designing 110 kV Overhead Lines in the Arctic Zone of the Russian Federation (Pevek – Bilibino, Chukotka Autonomous Okrug)
The experience of designing 110 kV overhead lines in the Arctic zone of the Russian Federation (Pevek – Bilibino, Chukotka Autonomous Okrug) is described.
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Article
Investigation of the Possibility of Increasing the Unit Capacity of the Sayano-Shushenskaya HPP
The article presents the information on the investigation of the possibility of increasing the unit capacity of the Sayano-Shushenskaya HPP hydraulic unit.
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Article
Validation of Numerical Calculations of Electromechanical Transient Processes When Assessing the Stability of Electric Power Systems Using Renewable Energy Sources
The widespread introduction of renewable energy sources (RES) into modern electric power systems (EPS) significantly changes their dynamic properties. EPS stability issues arise due to the properties of non-sy...
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Article
Reduction of Turbine Unit Vibroactivity by Changing Bearing Design
Three design variants for water-lubricated journal bearings are presented along with the results of their testing on a specially designed stand and as part of a turbine unit (TU). The selection of the bearing ...
