Assessment of Allowable Thermal Load for a River Reservoir Subject to Multi-Source Thermal Discharge from Operating and Designed Beloyarsk NPP Units (South Ural, Russian Federation)

Nikulenkov, A. M.; Dvornikov, Anton Y.; Rumynin, Vyacheslav G.; Ryabchenko, Vladimir; Vereschagina, Elena A.

doi:10.1007/s10666-017-9562-6

Cited by 5 publications

(2 citation statements)

References 30 publications

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“…In today's rapidly developing computer technology sector, predicting thermal discharge water through numerical simulation has become indispensable in the environmental impact assessment of power plant construction projects. These models have different complexities and modeling methods [9][10][11][12][13]. For example, numerical models show that the diffusion of thermal discharge from power plants is affected by the terrain, and the thermal impact range of coastal power plants is determined by the geographical environment [14].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation Calculation of Thermal Discharge Water Diffusion in Coastal Nuclear Power Plants

Zhang,

Shi,

Zhan

et al. 2023

Atmosphere

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Coastal areas have become the primary location for nuclear power plant sites due to the convenience of seawater cooling. In China, the diffusion range of thermal discharge water has always been a hot research topic as the basis for sea use areas. The main physical process of heat loss in the numerical simulation of thermal discharge from power plants is heat exchange between the water surface and air. Currently, the methods for calculating this heat loss include the heat flux method and the water surface heat exchange coefficient method. Taking a power plant in Zhejiang as the research object, the MIKE 3 temperature–salinity module (heat flux method) and MIKE ECO Model (water surface heat exchange coefficient method) were used for modeling, and the diffusion of thermal discharge water under different modules was compared and analyzed. The results show that the calculated area of the water temperature rise envelope between the two modules differed significantly under the same conditions. The surface 4 °C temperature rise area, as calculated using ECO Model, was 45.8% smaller than that of the temperature–salinity module. The MIKE 3 temperature–salinity module can simulate the heat accumulation of water under thermal buoyancy, producing a significant thermal stratification phenomenon; the ECO module does not accurately represent the heat exchange process between the water surface and the air, and it does not adequately capture the significant vertical stratification that occurs in real-world scenarios. On this basis, this study not only lays a foundation for further exploring the impact of thermal discharge water from this powerhouse on the structure of surrounding marine biological communities and dissolved oxygen content in water bodies but also provides scientific evidence for the selection of modules when simulating thermal discharge water with the MIKE model.

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Section: Introductionmentioning

confidence: 99%

Numerical Simulation Calculation of Thermal Discharge Water Diffusion in Coastal Nuclear Power Plants

Zhang,

Shi,

Zhan

et al. 2023

Atmosphere

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“…With the rapid advancement of computer technology, numerical models have become valuable tools for studying the effects of discharges into the environment. These models vary in levels of complexity and modeling approaches [20][21][22][23][24]. For example, based on numerical models, the effects of topography on the diffusion of thermal discharge in power plants is studied, and the results showed that the influence range of thermal discharge from a coastal power plant is determined by geographic setting [10][11].…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Temperature Distribution of Thermal Discharge in a River-Type Reservoir

Wang¹,

Chen²,

Wanshun³

2019

Pol. J. Environ. Stud.

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A 3-D thermal discharge numerical model based on the Navier-Stokes equation, the k-ε turbulence model, and the temperature diffusion-controlled equation was developed to simulate the 3-D distribution of thermal discharge along a river-type reservoir under different discharge conditions, hydrological conditions and reservoir water levels. Results showed that the thermal discharge from the power plant would have a smaller effect on a deep-water reservoir. Neither 1ºC, 2ºC nor 3ºC isotherm appear in any scenario conditions. For dam water depths of 155 m and 175 m, a small envelope area of 0.05ºC isothermal line was predicted. The isothermal lines of 0.05ºC and 0.1ºC covered a small area in all scenario conditions. The temperature increase 500 m downstream of the discharge point was predicted to be less than 0.05ºC during dry seasons. The predicted stability time of the temperature increase in each layer was 20 days. It evidences the thermal impact intensity and the extent is different under three scenario conditions. The predicted space-time distribution of the cooling water and the temperature increase provide scientific bases for designing water intake and water management. In the future, the influence of thermal discharge on water quality and aquatic organisms of the reservoir will be discussed based on the simulation results of this study, that is, the variation law of water temperature caused by thermal discharge.

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Thermal pollution zones on the aquatic environment from the coastal power plant: Numerical study

Issakhov

Zhandaulet

2021

Case Studies in Thermal Engineering

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Assessment of Allowable Thermal Load for a River Reservoir Subject to Multi-Source Thermal Discharge from Operating and Designed Beloyarsk NPP Units (South Ural, Russian Federation)

Cited by 5 publications

References 30 publications

Numerical Simulation Calculation of Thermal Discharge Water Diffusion in Coastal Nuclear Power Plants

Numerical Simulation Calculation of Thermal Discharge Water Diffusion in Coastal Nuclear Power Plants

Numerical Investigation of Temperature Distribution of Thermal Discharge in a River-Type Reservoir

Thermal pollution zones on the aquatic environment from the coastal power plant: Numerical study

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