A numerical model of cooling tower plume recirculation

Becker, Bryan R.; Stewart, W. D. P.; Walter, Thomas Mark; Becker, C.

doi:10.1016/0895-7177(89)90135-0

Cited by 13 publications

(6 citation statements)

References 2 publications

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“…On the thermal side of NDWCTs, most of the reported work focused on the description of both buoyant jets and plumes [3,9,10]. These studies have covered the simplest analytical models, higherlevel integral models, numerical predictions using CFD and experimental studies.…”

Section: Introductionmentioning

confidence: 98%

Crosswinds effect on the performance of natural draft wet cooling towers

Al-Waked

2010

International Journal of Thermal Sciences

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Section: Introductionmentioning

confidence: 98%

Crosswinds effect on the performance of natural draft wet cooling towers

Al-Waked

2010

International Journal of Thermal Sciences

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“…There results a decrease in the effluent temperature before it is discharged into the wake zone, which has the effect of then diminishing the recirculation. The findings of Becker et al [12] confirmed these two opposing effects and predicted an increasing then decreasing trend of recirculation with increasing wind speed. Later Ge et al [46] studied the effects of recirculation on the visible plume potential using CFD modeling.…”

Section: Cfd Models (Single and Multiple Sources)mentioning

confidence: 82%

“…Becker et al [12] proposed a unique numerical model of cooling tower plume recirculation. The flow inside the tower was treated as a porous media flow whereby each of the cooling tower components, e.g.…”

Section: Cfd Models (Single and Multiple Sources)mentioning

confidence: 99%

Cooling tower plume abatement and plume modeling: a review

Flynn

2021

Environ Fluid Mech

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Visible plumes above wet cooling towers are of great concern due to the associated aesthetic and environmental impacts. The parallel path wet/dry cooling tower is one of the most commonly used approaches for plume abatement, however, the associated capital cost is usually high due to the addition of the dry coils. Recently, passive technologies, which make use of free solar energy or the latent heat of the hot, moist air rising through the cooling tower fill, have been proposed to minimize or abate the visible plume and/or conserve water. In this review, we contrast established versus novel technologies and give a perspective on the relative merits and demerits of each. Of course, no assessment of the severity of a visible plume can be made without first understanding its atmospheric trajectory. To this end, numerous attempts, being either theoretical or numerical or experimental, have been proposed to predict plume behavior in atmospheres that are either uniform versus density-stratified or still versus windy (whether highly-turbulent or not). Problems of particular interests are plume rise/deflection, condensation and drift deposition, the latter consideration being a concern of public health due to the possible transport and spread of Legionella bacteria.

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“…Their experimental results agreed with the data from the previous field experiments. Becker et al (1989) studied the plume diffusion laws in the backflow region of cooling towers and pointed out that the plume from cooling towers might be heavily entrained into the backflow region. Janicke and Janicke (2001) proposed a set of formulas to estimate the visible plume region of cooling towers.…”

Section: Introductionmentioning

confidence: 99%

Wind Tunnel Experiment for Predicting a Visible Plume Region from a Nuclear Power Plant Cooling Tower

Guo

Rentai

Fan

2014

Journal of Applied Meteorology and Climatology

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This paper introduces a wind tunnel experiment to study the effect of the cooling tower of a nuclear power plant on the flow and the characteristics of visible plume regions. The relevant characteristics of the flow field near the cooling tower, such as the plume rise and the visible plume region, are compared with the results of previous experimental data from Electricit e de France (EDF) and the Briggs formulas. The results show that the wind tunnel experiment can simulate the top backflow of the cooling tower and the rear cavity regions among others. In the near-wake region, including the recirculation cavity, mean velocity decreases and turbulence intensity increases significantly. The maximum turbulence intensity observed is 0.5. In addition, the disturbed flow extent of the cooling tower top reaches 1.5 times the cooling tower height. Analysis of the visible plume region shows that the wind tunnel experiment can simulate the variation of a visible plume region. The results are consistent with the wind tunnel experiment of EDF. Moreover, the plume rise analysis shows that the wind tunnel experiment data are in agreement with the Briggs formulas for 50-200 m. As a whole, the proposed wind tunnel experiment can simulate the flow field variation of the visible plume region and the plume rise around the buildings with reasonable accuracy.

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A numerical model of cooling tower plume recirculation

Cited by 13 publications

References 2 publications

Crosswinds effect on the performance of natural draft wet cooling towers

Crosswinds effect on the performance of natural draft wet cooling towers

Cooling tower plume abatement and plume modeling: a review

Wind Tunnel Experiment for Predicting a Visible Plume Region from a Nuclear Power Plant Cooling Tower

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