Numerical modelling of the thermal effects on the aquatic environment from the thermal power plant by using two water discharge pipes

2017 ◽  
Author(s):  
Alibek Issakhov
Keyword(s):  
Power Plant ◽  
Numerical Modelling ◽  
Aquatic Environment ◽  
Thermal Power Plant ◽  
Thermal Effects ◽  
Water Discharge ◽  
Thermal Power

Numerical Study of the Discharged Heat Water Effect on the Aquatic Environment from Thermal Power Plant by using Two Water Discharged Pipes

2017 ◽  
Vol 18 (6) ◽  
pp. 469-483 ◽  
Author(s):  
Alibek Issakhov
Keyword(s):  
Power Plant ◽  
Aquatic Environment ◽  
Thermal Power Plant ◽  
Numerical Study ◽  
Water Discharge ◽  
Thermal Power ◽  
Numerical Results ◽  
Stratified Medium ◽  
Water Effect ◽  
Discharge System

AbstractThe paper presents a numerical study of the discharged heat water effect on the aquatic environment from the thermal power plant by using two water discharged pipes. It is solved by the Navier–Stokes and temperature transport equations for an incompressible fluid in a stratified medium. The aim of this study is to improve the existing water discharge system to reduce the heat load on the reservoir-cooler of the thermal power plants operation (Ekibastuz SDPP-1). In this study thermal pollution to the reservoir-cooler using only two water discharged pipes as so using the existing one and building only one additional in the eastern part of the reservoir-cooler is numerically simulated. The numerical method is based on the projection method which was approximated by the finite volume method. The numerical solution of the equation system is divided into four stages. The algorithm is parallelized on a high-performance computer. The obtained numerical results of three-dimensional stratified turbulent flow for two water discharged pipes of the thermal power plant were compared with experimental data and with numerical results for one water discharged pipe. General thermal load in the reservoir-cooler decreases comparing one water discharged pipe and revealed qualitatively and quantitatively approximately the basic laws of hydrothermal processes occurring in the reservoir-cooler can be seen that from numerical simulations where two water discharged pipes were used.

Numerical Study of Discharged Heat Water Effect on Aquatic Environment From Coastal Thermal Power Plant by Using Two Water Discharged Pipes

2018 ◽  
Vol 7 (2) ◽  
pp. 97-116
Author(s):  
Alibek Issakhov
Keyword(s):  
Power Plant ◽  
Aquatic Environment ◽  
Thermal Power Plant ◽  
Power Plants ◽  
Numerical Study ◽  
Water Discharge ◽  
Thermal Power ◽  
Numerical Results ◽  
Stratified Medium ◽  
Discharge System

The article presents a numerical study of the thermal load on the aquatic environment by using two water discharge pipes under various operational capacities of thermal power plant. It is solved by the Navier-Stokes and temperature transport equations for an incompressible fluid in a stratified medium. The aim of this article is to improve the existing water discharge system for reduce the heat load on the reservoir-cooler of the thermal power plants operation (Ekibastuz SDPP-1). In this article, thermal pollution using only two water discharge pipes, using the existing one and building only one additional in the eastern part of the reservoir-cooler is numerically simulated. The numerical method is based on the projection method, which was approximated by the finite volume method. The obtained numerical results of three-dimensional stratified turbulent flow for two water discharge pipes under various operational capacities of the thermal power plant were compared with experimental data and with the numerical results for one water discharge pipe.

Mathematical Modeling of the Discharged Heat Water Effect on the Aquatic Environment from Thermal Power Plant

2015 ◽  
Vol 16 (5) ◽  
pp. 229-238 ◽  
Author(s):  
Alibek Issakhov
Keyword(s):  
Power Plant ◽  
Velocity Field ◽  
Aquatic Environment ◽  
Thermal Power Plant ◽  
Pressure Field ◽  
Thermal Power ◽  
Kutta Method ◽  
Runge Kutta Method ◽  
Runge Kutta ◽  
Operational Capacity

AbstractThe paper presents a mathematical model of the thermal load on the aquatic environment under operational capacity 200 MW of thermal power plant. It is solved by the Navier–Stokes and temperature equations for an incompressible fluid in a stratified medium based on numerical method, the splitting method by physical parameters which approximated the finite volume method. The numerical solution of the equation system is divided into four stages. At the first step it is assumed that the momentum transfer is carried out only by convection and diffusion. Intermediate velocity field is solved by the five-step Runge–Kutta method. At the second stage, the pressure field is solved by the intermediate velocity field. Poisson equation for the pressure field is solved by Jacobi method. The third step is assumed that the transfer is carried out only by pressure gradient. The fourth step of the transport equation for temperature is also solved as momentum equations, with five-step Runge–Kutta method. The obtained numerical results of temperature distribution for operational capacity of 200 MW of three-dimensional stratified turbulent flow were compared with experimental data, which revealed qualitatively and quantitatively approximately the basic laws of hydrothermal processes occurring in the reservoir-cooler.

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