The Experts below are selected from a list of 255 Experts worldwide ranked by ideXlab platform
Yeldos Zhandaulet - One of the best experts on this subject based on the ideXlab platform.
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Numerical Study of Technogenic Thermal Pollution Zones’ Formations in the Water Environment from the Activities of the Power Plant
Environmental Modeling & Assessment, 2019Co-Authors: Alibek Issakhov, Yeldos ZhandauletAbstract:Thermal Pollution of water bodies is an inevitable consequence of a Thermal or nuclear power plant operation. To minimize the harmful effects, it is necessary to evaluate the different locations for the heated water discharge from the power plant. The most effective approach to solving these problems is a computational experiment. In this paper, the numerical studies of Thermal Pollution of the Irtysh River as a natural water cooling system from the power plant operation were presented. Such problems are traditionally solved in a two-dimensional formulation by using the “shallow water” approximation. Moreover in this work, a two-dimensional model for the numerical simulation of a flow was used with its characteristics of mixing heated water discharged from lateral protrusions with a transverse flow. Furthermore, experimental data and numerical results of other authors were used in order to check the conformity of the numerical results. The obtained numerical results gave good agreement with the experimental data for selecting the optimal turbulent model, in particular, the jets trajectory, the recirculation zone size, and the dimensionless excess temperature distribution. For this purpose, the turbulent models ( k − ε , k − ω ) were chosen for the turbulent kinetic energy boundary conditions to match the experimental data. Also, studies were conducted to study Thermal Pollution under different scenarios, the impact of the heated water discharge from a power plant into the Irtysh River.
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Numerical Study of Technogenic Thermal Pollution Zones’ Formations in the Water Environment from the Activities of the Power Plant
Environmental Modeling & Assessment, 2019Co-Authors: Alibek Issakhov, Yeldos ZhandauletAbstract:Thermal Pollution of water bodies is an inevitable consequence of a Thermal or nuclear power plant operation. To minimize the harmful effects, it is necessary to evaluate the different locations for the heated water discharge from the power plant. The most effective approach to solving these problems is a computational experiment. In this paper, the numerical studies of Thermal Pollution of the Irtysh River as a natural water cooling system from the power plant operation were presented. Such problems are traditionally solved in a two-dimensional formulation by using the “shallow water” approximation. Moreover in this work, a two-dimensional model for the numerical simulation of a flow was used with its characteristics of mixing heated water discharged from lateral protrusions with a transverse flow. Furthermore, experimental data and numerical results of other authors were used in order to check the conformity of the numerical results. The obtained numerical results gave good agreement with the experimental data for selecting the optimal turbulent model, in particular, the jets trajectory, the recirculation zone size, and the dimensionless excess temperature distribution. For this purpose, the turbulent models (k − e, k − ω) were chosen for the turbulent kinetic energy boundary conditions to match the experimental data. Also, studies were conducted to study Thermal Pollution under different scenarios, the impact of the heated water discharge from a power plant into the Irtysh River.
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Mathematical modelling of the formations of the Thermal Pollution region in the large reservoir from the activities of the power plant
CENTRAL EUROPEAN SYMPOSIUM ON THERMOPHYSICS 2019 (CEST), 2019Co-Authors: Alibek Issakhov, Yeldos ZhandauletAbstract:Thermal Pollution of water bodies is an inevitable consequence of a power plant operation. To minimize the harmful effects, it is necessary to evaluate the different locations for the heated water discharge from the power plant. The most effective approach to solving these problems is a computational experiment. In this paper, the numerical studies of Thermal Pollution of the Irtysh River as a natural water cooling system from the power plant operation were presented. And studies were conducted to study Thermal Pollution under different scenarios, the impact of the heated water discharge from a power plant into the Irtysh River.Thermal Pollution of water bodies is an inevitable consequence of a power plant operation. To minimize the harmful effects, it is necessary to evaluate the different locations for the heated water discharge from the power plant. The most effective approach to solving these problems is a computational experiment. In this paper, the numerical studies of Thermal Pollution of the Irtysh River as a natural water cooling system from the power plant operation were presented. And studies were conducted to study Thermal Pollution under different scenarios, the impact of the heated water discharge from a power plant into the Irtysh River.
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Numerical simulation of Thermal Pollution zones’ formations in the water environment from the activities of the power plant
Engineering Applications of Computational Fluid Mechanics, 2019Co-Authors: Alibek Issakhov, Yeldos ZhandauletAbstract:ABSTRACTIn this paper, obtained numerical results of the Thermal Pollution from the operation of a power plant are presented when using the Irtysh River as a natural water cooling system. A two-dim...
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Thermal Pollution zones on the aquatic environment from the coastal power plant: Numerical study
Case Studies in Thermal Engineering, 1Co-Authors: Alibek Issakhov, Yeldos ZhandauletAbstract:Abstract In this work the results of a numerical study of Thermal Pollution from the power plant operation using the Irtysh River as a natural water cooling system have been presented. In the paper, a 2D model has been used to numerically simulate a floating stream along with its mixing heated water discharge characteristics from lateral projections with a transverse flow. The values of computational modeling are in good adjustment with the measurement results, in particular, with the trajectories of the jets, the recirculation zone size and the distribution of the dimensionless excess temperature. The work was also conducted to study Thermal Pollution in various scenarios of the heated water discharge from the coastal power plant and Thermal Pollution areas were determined for various discharge speed cases. The general projections of the Thermal pollutant transfers in the river during the placement of the discharge channels, both for short and for long distances from the city were evaluated. It could be noted that using several discharge channels leads to a reduction in the area of Thermal Pollution. So for the discrepancy in temperature value from the water temperature of 3°C there was a reduction in the Pollution area of almost 11 times.
Alibek Issakhov - One of the best experts on this subject based on the ideXlab platform.
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Numerical Study of Technogenic Thermal Pollution Zones’ Formations in the Water Environment from the Activities of the Power Plant
Environmental Modeling & Assessment, 2019Co-Authors: Alibek Issakhov, Yeldos ZhandauletAbstract:Thermal Pollution of water bodies is an inevitable consequence of a Thermal or nuclear power plant operation. To minimize the harmful effects, it is necessary to evaluate the different locations for the heated water discharge from the power plant. The most effective approach to solving these problems is a computational experiment. In this paper, the numerical studies of Thermal Pollution of the Irtysh River as a natural water cooling system from the power plant operation were presented. Such problems are traditionally solved in a two-dimensional formulation by using the “shallow water” approximation. Moreover in this work, a two-dimensional model for the numerical simulation of a flow was used with its characteristics of mixing heated water discharged from lateral protrusions with a transverse flow. Furthermore, experimental data and numerical results of other authors were used in order to check the conformity of the numerical results. The obtained numerical results gave good agreement with the experimental data for selecting the optimal turbulent model, in particular, the jets trajectory, the recirculation zone size, and the dimensionless excess temperature distribution. For this purpose, the turbulent models ( k − ε , k − ω ) were chosen for the turbulent kinetic energy boundary conditions to match the experimental data. Also, studies were conducted to study Thermal Pollution under different scenarios, the impact of the heated water discharge from a power plant into the Irtysh River.
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Numerical Study of Technogenic Thermal Pollution Zones’ Formations in the Water Environment from the Activities of the Power Plant
Environmental Modeling & Assessment, 2019Co-Authors: Alibek Issakhov, Yeldos ZhandauletAbstract:Thermal Pollution of water bodies is an inevitable consequence of a Thermal or nuclear power plant operation. To minimize the harmful effects, it is necessary to evaluate the different locations for the heated water discharge from the power plant. The most effective approach to solving these problems is a computational experiment. In this paper, the numerical studies of Thermal Pollution of the Irtysh River as a natural water cooling system from the power plant operation were presented. Such problems are traditionally solved in a two-dimensional formulation by using the “shallow water” approximation. Moreover in this work, a two-dimensional model for the numerical simulation of a flow was used with its characteristics of mixing heated water discharged from lateral protrusions with a transverse flow. Furthermore, experimental data and numerical results of other authors were used in order to check the conformity of the numerical results. The obtained numerical results gave good agreement with the experimental data for selecting the optimal turbulent model, in particular, the jets trajectory, the recirculation zone size, and the dimensionless excess temperature distribution. For this purpose, the turbulent models (k − e, k − ω) were chosen for the turbulent kinetic energy boundary conditions to match the experimental data. Also, studies were conducted to study Thermal Pollution under different scenarios, the impact of the heated water discharge from a power plant into the Irtysh River.
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Mathematical modelling of the formations of the Thermal Pollution region in the large reservoir from the activities of the power plant
CENTRAL EUROPEAN SYMPOSIUM ON THERMOPHYSICS 2019 (CEST), 2019Co-Authors: Alibek Issakhov, Yeldos ZhandauletAbstract:Thermal Pollution of water bodies is an inevitable consequence of a power plant operation. To minimize the harmful effects, it is necessary to evaluate the different locations for the heated water discharge from the power plant. The most effective approach to solving these problems is a computational experiment. In this paper, the numerical studies of Thermal Pollution of the Irtysh River as a natural water cooling system from the power plant operation were presented. And studies were conducted to study Thermal Pollution under different scenarios, the impact of the heated water discharge from a power plant into the Irtysh River.Thermal Pollution of water bodies is an inevitable consequence of a power plant operation. To minimize the harmful effects, it is necessary to evaluate the different locations for the heated water discharge from the power plant. The most effective approach to solving these problems is a computational experiment. In this paper, the numerical studies of Thermal Pollution of the Irtysh River as a natural water cooling system from the power plant operation were presented. And studies were conducted to study Thermal Pollution under different scenarios, the impact of the heated water discharge from a power plant into the Irtysh River.
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Numerical simulation of Thermal Pollution zones’ formations in the water environment from the activities of the power plant
Engineering Applications of Computational Fluid Mechanics, 2019Co-Authors: Alibek Issakhov, Yeldos ZhandauletAbstract:ABSTRACTIn this paper, obtained numerical results of the Thermal Pollution from the operation of a power plant are presented when using the Irtysh River as a natural water cooling system. A two-dim...
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Thermal Pollution zones on the aquatic environment from the coastal power plant: Numerical study
Case Studies in Thermal Engineering, 1Co-Authors: Alibek Issakhov, Yeldos ZhandauletAbstract:Abstract In this work the results of a numerical study of Thermal Pollution from the power plant operation using the Irtysh River as a natural water cooling system have been presented. In the paper, a 2D model has been used to numerically simulate a floating stream along with its mixing heated water discharge characteristics from lateral projections with a transverse flow. The values of computational modeling are in good adjustment with the measurement results, in particular, with the trajectories of the jets, the recirculation zone size and the distribution of the dimensionless excess temperature. The work was also conducted to study Thermal Pollution in various scenarios of the heated water discharge from the coastal power plant and Thermal Pollution areas were determined for various discharge speed cases. The general projections of the Thermal pollutant transfers in the river during the placement of the discharge channels, both for short and for long distances from the city were evaluated. It could be noted that using several discharge channels leads to a reduction in the area of Thermal Pollution. So for the discrepancy in temperature value from the water temperature of 3°C there was a reduction in the Pollution area of almost 11 times.
Tim Ingleton - One of the best experts on this subject based on the ideXlab platform.
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Thermal plume effects a multi disciplinary approach for assessing effects of Thermal Pollution on estuaries using benthic diatoms and satellite imagery
Estuarine Coastal and Shelf Science, 2012Co-Authors: Tim Ingleton, Andrew McminnAbstract:Rapid, reliable and cost-effective techniques for assessing and monitoring Pollution are required because of increased development pressures associated with continued population growth. An innovative multi-disciplinary approach was applied to a power station discharge in Lake Macquarie, Australia, using benthic diatoms, water quality, satellite imagery and temperature loggers. Triplicate sediment samples at five sites across a Thermal gradient in one plume affected and two control bays were analysed for benthic diatoms. Multivariate analysis indicated that diatom assemblages and environmental gradients in the receiving water embayment were significantly different to control bays. The plume affected benthic assemblages to greater depths (∼4.7 m) than observed by previous studies and this is likely to have implications for estimates of estuarine productivity and nutrient cycling. Of the 244 diatom taxa identified, Navicula rhaphoneis appeared to best identify areas of the lake bed exposed to temperatures 3–4 °C above ambient (ΔT). Tryblionella lanceola, Tryblionella littoralis, Grammatophora spp. and Psammodictyon panduriformis also contributed to gradients and might be used as plume indicator species. Temperature, ammonia, oxidised nitrogen and selenium significantly explained gradients in the species data (p = 0.02). Satellite imagery indicated that receiving bay temperature gradients (<7 °C) were greatest in winter, whereas loggers showed ΔT was greatest in autumn then winter. These analyses highlighted that seasonality is an important factor when considering the effects of Thermal plumes on receiving environment ecology. Analyses of imagery and logger data are effective techniques for managers to routinely assess plume intensity and extent. This study demonstrates that both benthic diatoms and satellite imagery are valuable tools for the monitoring and assessment of Thermal Pollution in coastal environments.
S. S. Lee - One of the best experts on this subject based on the ideXlab platform.
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Three Dimensional Thermal Pollution Models
2019Co-Authors: S. Sengupta, S. S. LeeAbstract:Three versions of rigid lid programs are presented: one for near field simulation; the second for far field unstratified situations; and the third for stratified basins, far field simulation. The near field simulates Thermal plume areas, and the far field version simulates larger receiving aquatic ecosystems. Since these versions have many common subroutines, a unified testing is provided, with main programs for the three possible conditions listed.
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Thermal Pollution Mathematical Model
2018Co-Authors: S. Y. Tuann, S. Sengupta, C. R. Lee, S. S. LeeAbstract:A one dimensional model for studying the Thermal dynamics of cooling lakes was developed and verified. The model is essentially a set of partial differential equations which are solved by finite difference methods. The model includes the effects of variation of area with depth, surface heating due to solar radiation absorbed at the upper layer, and internal heating due to the transmission of solar radiation to the sub-surface layers. The exchange of mechanical energy between the lake and the atmosphere is included through the coupling of Thermal diffusivity and wind speed. The effects of discharge and intake by power plants are also included. The numerical model was calibrated by applying it to Cayuga Lake. The model was then verified through a long term simulation using Lake Keowee data base. The comparison between measured and predicted vertical temperature profiles for the nine years is good. The physical limnology of Lake Keowee is presented through a set of graphical representations of the measured data base.
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Application of remote sensing to Thermal Pollution analysis
2011Co-Authors: S. Sengupta, T. N. Veziroglu, H. W. Hiser, S. S. LeeAbstract:A comprehensive numerical model development program for near-field Thermal plume discharge and far field general circulation in coastal regions is being carried on at the University of Miami Clean Energy Research Institute. The objective of the program is to develop a generalized, three-dimensional, predictive model for Thermal Pollution studies. Two regions of specific application of the model are the power plants sites at the Biscayne Bay and Hutchinson Island area along the Florida coastline. Remote sensing from aircraft as well as satellites are used in parallel with in situ measurements to provide information needed for the development and verification of the mathematical model. This paper describes the efforts that have been made to identify problems and limitations of the presently available satellite data and to develop methods for enhancing and enlarging Thermal infrared displays for mesoscale sea surface temperature measurements.
Yaohuan Huang - One of the best experts on this subject based on the ideXlab platform.
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monitoring of tianwan nuclear power plant Thermal Pollution based on remotely sensed landsat data
International Geoscience and Remote Sensing Symposium, 2020Co-Authors: Pingjing Nie, Haitao Zhu, Yaohuan Huang, W U HuaAbstract:The Tianwan nuclear power plant located in Jiangsu province of China discharges warm water from its cooling system into the Yellow Sea and may cause ecological consequences. In this study, the sea surface temperature changes before and after the operation of the Tianwan nuclear power plant was studied by using Landsat data. After retrieving the sea surface temperature near Tianwan nuclear power plant, the datum temperature was firstly extracted. Consequently, the Thermal Pollution value was calculated. Finally, the area distribution maps of different temperature rise levels were analyzed. The results showed that there was no obvious Thermal Pollution before the nuclear power plant was put into use. Since the commercial operation of the nuclear power plant, the Thermal Pollution appears around the nuclear power plant. In the following years, the distribution area of Thermal drainage has increased. The area of warm temperature Pollution at the + 1 °C level was the largest in every year.
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IGARSS - Monitoring of Tianwan Nuclear Power Plant Thermal Pollution Based on Remotely Sensed Landsat Data
IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020Co-Authors: Pingjing Nie, Haitao Zhu, Yaohuan HuangAbstract:The Tianwan nuclear power plant located in Jiangsu province of China discharges warm water from its cooling system into the Yellow Sea and may cause ecological consequences. In this study, the sea surface temperature changes before and after the operation of the Tianwan nuclear power plant was studied by using Landsat data. After retrieving the sea surface temperature near Tianwan nuclear power plant, the datum temperature was firstly extracted. Consequently, the Thermal Pollution value was calculated. Finally, the area distribution maps of different temperature rise levels were analyzed. The results showed that there was no obvious Thermal Pollution before the nuclear power plant was put into use. Since the commercial operation of the nuclear power plant, the Thermal Pollution appears around the nuclear power plant. In the following years, the distribution area of Thermal drainage has increased. The area of warm temperature Pollution at the + 1 °C level was the largest in every year.
