Numerical Simulation of Flow Fields in a Natural Draft Wet-Cooling Tower

Based on the heat and mass transfer theory and characteristics of the FLUENT software, a three-dimensional numerical simulation platform composed by user defined functions had been developed to simulate the thermal performance in a natural draft wet cooling tower. This platform was used to study a typical hyperbolic natural draft wet cooling tower with different fill types. The variations of the flow and temperature field in the cooling tower caused by the two different methods of fill were investigated. It is found that the outlet water temperature will decrease due to the non-uniform fill depth. The non-uniform fill depth is beneficial to increasing the efficiency of the cooling tower.

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Three-Dimensional Numerical Study on Thermal Performance in a Natural Draft Wet Cooling Tower

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.614-615.169 ◽

2012 ◽

Vol 614-615 ◽

pp. 169-173

Author(s):

Shui Hua Zheng ◽

Tai Jin ◽

Jian Ren Fan

Keyword(s):

Numerical Simulation ◽

Mass Transfer ◽

Thermal Performance ◽

Water Distribution ◽

Cooling Tower ◽

Numerical Study ◽

Three Dimensional ◽

Cooling Efficiency ◽

Natural Draft ◽

Mass Transfer Theory

Based on the heat and mass transfer theory and characteristics of the CFD software, a three-dimensional numerical simulation platform had been developed to study the thermal performance in a natural draft wet cooling tower. This platform was validated using the measured results of a running cooling tower. The flow and temperature field in the cooling tower were investigated. It is found that the water temperature and flow field can be correctly calculated using this platform. The cooling efficiency could be improved due to non-uniform fill and water distribution methods.

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Discuss of Important Issues in Numerical Simulation for Natural Draft Counter Flow Cooling Tower

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.516-517.267 ◽

2012 ◽

Vol 516-517 ◽

pp. 267-270

Author(s):

Li Song ◽

Rui Tian ◽

Song Li ◽

Ya Hui Wang

Keyword(s):

Experimental Data ◽

Numerical Simulation ◽

Mass Transfer ◽

Drop Size ◽

Cooling Tower ◽

Drop Diameter ◽

Atmospheric Density ◽

Counter Flow ◽

Natural Draft ◽

Calculation Results

natural draft counter flow cooling tower heat and mass transfer numerical simulation has been widely used to optimize the cooling tower design and to improve the thermal efficiency, but in published papers, a few important problems is not attracted attention, such as how does impact grid density to the calculation results; how does impact change of atmospheric density to the calculation results; drop diameter is an important parameter in numerical simulation, but it is not a exact experimental data, it is important to discuss how does impact drop size to the calculation results. This paper will explore and analyze these issues in the numerical simulation.

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Development and validation of a CFD model for numerical simulation of a large natural draft wet cooling tower

Applied Thermal Engineering ◽

10.1016/j.applthermaleng.2016.03.020 ◽

2016 ◽

Vol 105 ◽

pp. 953-960 ◽

Cited By ~ 14

Author(s):

Nicolas Blain ◽

Antoine Belaud ◽

Matthieu Miolane

Keyword(s):

Numerical Simulation ◽

Cooling Tower ◽

Cfd Model ◽

Natural Draft ◽

Development And Validation

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Numerical Study of Natural Draft Wet Cooling Tower

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.403-408.3191 ◽

2011 ◽

Vol 403-408 ◽

pp. 3191-3194

Author(s):

Shui Hua Zheng ◽

Tai Jin ◽

Jian Ren Fan

Keyword(s):

Numerical Simulation ◽

Thermal Performance ◽

Cooling Tower ◽

Numerical Study ◽

Thermal Power ◽

Three Dimensional ◽

Design Calculation ◽

Simulation Platform ◽

Computational Accuracy ◽

Natural Draft

Natural draft wet cooling tower is one of key equipments in thermal power stations, and its thermal performance influences the efficiency of total thermal system. Based on the heat and mass transfer theory and characteristics of the FLUENT software, a three-dimensional numerical simulation platform had been developed to simulate the thermal performance in a natural draft wet cooling tower. This platform was used to study the heat exchange and flow situation of a typical hyperbolic natural draft wet cooling tower. Comparing and analyzing the results of simulation and design calculation, it indicate that there is good computational accuracy of the three-dimensional numerical simulation platform, and the platform can provide a good support for the design and research of natural draft wet cooling tower.

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