scholarly journals SPECIFICS OF FORMING OF STRESS BEHAVIOR OF CONTAINING BLOCK OF UNDERGROUND CONSTRUCTIONS OF HYDROTECHNICAL COMPLEX IN PROCESS OF ITS ERACTION

2019 ◽  
Vol 2 (4) ◽  
pp. 20-25
Author(s):  
Lidiya Gakhova
Keyword(s):  
Numerical Simulation ◽  
Power Plant ◽  
Integral Equations ◽  
Cross Section ◽  
Hydro Power ◽  
Strain Behavior ◽  
Stress Behavior ◽  
Full Cross Section ◽  
Finite Integral ◽  
Underground Constructions

On the results of numerical simulation of stress-strain behavior of containing block near machinery hall and transformer room of Rogunskaya Hydro Power Plant carried out using method of finite integral equations for model of linear deformable quasi-isotropic surrounding of laminated rock solid the character, regularities and specifics of stress behavior distribution of containing block are established. The estimation of impact of gradual revelation of full cross section of machinery hall on changing of elastic convergence “machinery hall bottom – cope” and forming of nonelastic deformation zones near its contour is given.

scholarly journals Numerical Simulation of the Cooling Water System of a 115 MW Hydro-Power Plant

2016 ◽  
Vol 85 ◽  
pp. 228-234 ◽  
Author(s):  
Sanda-Carmen Georgescu ◽  
Andrei-Mugur Georgescu ◽  
Alexandru Jumara ◽  
Vlad-Florin Piraianu ◽  
Georgiana Dunca
Keyword(s):  
Numerical Simulation ◽  
Power Plant ◽  
Water System ◽  
Cooling Water ◽  
Hydro Power ◽  
Cooling Water System

Virtual Synchronous Generator Control of Power System including Large-scale Wind Farm by Cooperative Operation between Battery and LFC Hydro Power Plant

2020 ◽  
Vol 140 (6) ◽  
pp. 531-538
Author(s):  
Kotaro Nagaushi ◽  
Atsushi Umemura ◽  
Rion Takahashi ◽  
Junji Tamura ◽  
Atsushi Sakahara ◽  
...  
Keyword(s):  
Power Plant ◽  
Power System ◽  
Large Scale ◽  
Wind Farm ◽  
Synchronous Generator ◽  
Hydro Power ◽  
Virtual Synchronous Generator

scholarly journals Numerical Simulation of Intrachamber Processes in the Power Plant

2021 ◽  
Vol 11 (11) ◽  
pp. 4990
Author(s):  
Boris Benderskiy ◽  
Peter Frankovský ◽  
Alena Chernova
Keyword(s):  
Numerical Simulation ◽  
Power Plant ◽  
Flow Structure ◽  
Power Plants ◽  
Control Volume ◽  
Conjugate Problem ◽  
Topological Features ◽  
Gas Dynamic ◽  
Calculation Results ◽  
Volume Method

This paper considers the issues of numerical modeling of nonstationary spatial gas dynamics in the pre-nozzle volume of the combustion chamber of a power plant with a cylindrical slot channel at the power plant of the mass supply surface. The numerical simulation for spatial objects is based on the solution conjugate problem of heat exchange by the control volume method in the open integrated platform for numerical simulation of continuum mechanics problems (openFoam). The calculation results for gas-dynamic and thermal processes in the power plant with a four-nozzle cover are presented. The analysis of gas-dynamic parameters and thermal flows near the nozzle cover, depending on the canal geometry, is given. The topological features of the flow structure and thermophysical parameters near the nozzle cap were studied. For the first time, the transformation of topological features of the flow structure in the pre-nozzle volume at changes in the mass channel’s geometry is revealed, described, and analyzed. The dependence of the Nusselt number in the central point of stagnation on the time of the power plants operation is revealed.

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