Evaporative cooling of water in a mechanical draft cooling tower

Фисенко, С. П.; Brin, A. A.; Petruchik, A. I.

doi:10.1016/s0017-9310(03)00409-5

Cited by 123 publications

(66 citation statements)

References 10 publications

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“…The test cases for the SRS cooling tower consist of three basic cases. From the literature information [10] shown in Fig. 12, droplet size for the A-Area cooling tower was used to be 1 mm diameter for the present calculations since it has an array of thin-rectangular splashing plate inside the cooling cell.…”

Section: Test Descriptions For Experimental Measurementmentioning

confidence: 99%

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CFD Modeling and Analysis for a-Area and H-Area Cooling Towers

Lee¹,

Garrett²,

Bollinger³

2009

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Section: Test Descriptions For Experimental Measurementmentioning

confidence: 99%

“…Based on the literature information [10] and SRS experimental observation, the model used the fixed droplet diameter to be 1 mm for the present analysis. Yao and Schrock [11] performed the experimental work to measure the temperature drops for 3 to 5 mm diameter ranges of water droplets falling through a 3m column containing the conditioned air.…”

mentioning

confidence: 99%

CFD Modeling and Analysis for a-Area and H-Area Cooling Towers

Lee¹,

Garrett²,

Bollinger³

2009

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“…The total enthalpy transfer at the air-water interface consists of an enthalpy transfer associated with the mass transfer due to the difference in vapor concentration and the heat transfer due to the difference in temperature (Kröger, 2002) The overall heat load of the cooling water network was also needed to determine the desired heat removal of the cooling tower (Fisenko et al, 2004):…”

Section: Mathematical Modeling Of Cooling Towermentioning

confidence: 99%

Application of an environmentally optimum cooling water system design in water and energy conservation

Panjeshahi

Ataei

2008

Int. J. Environ. Sci. Technol.

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ABSTRACT:Recirculating cooling water systems are consist of a cooling tower and heat-exchanger network which conventionally have a parallel configuration. However, reuse of water between different cooling duties enables cooling water networks to be designed with series arrangements. This will result in performance improvement and increased cooling tower capacity. Research on recirculating cooling water systems has mostly focused on the individual components. However, a particular design method represented by Kim and Smith accounts for the whole system interactions. In this study, the Kim and Smith design method is expanded and a comprehensive simulation model of recirculating cooling system was developed to account for the interaction between the cooling tower performance and the heat-exchanger network configuration. Regarding this model and considering cycle water quality through introducing ozone treatment technology, a modern methodology of recirculating cooling water system design was established and developed. This technique, called the integrated ozone treatment cooling system design, is a superior designed tool based on pinch analysis and mathematical programing. It also ensures maximum water and energy conservation, minimum cost and environmental impacts. Related coding in MATLAB version 7.3 was used for the illustrative example to get optimal values in cooling water design method computations. The result of the recently introduced design methodology was compared with the Kim and Smith design method.

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“…Based on the literature information [9], the model used the droplet diameter to be 1 mm for the present analysis. As shown in Fig.…”

Section: Model Validationmentioning

confidence: 99%

CFD Modeling Analysis of Mechanical Draft Cooling Tower

Lee

Bollinger

Garrett

et al. 2008

Heat Transfer: Volume 2

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Industrial processes use mechanical draft cooling towers (MDCT's) to dissipate waste heat by transferring heat from water to air via evaporative cooling, which causes air humidification. The Savannah River Site (SRS) has a MDCT consisting of four independent compartments called cells. Each cell has its own fan to help maximize heat transfer between ambient air and circulated water. The primary objective of the work is to conduct a parametric study for cooling tower performance under different fan speeds and ambient air conditions. The Savannah River National Laboratory (SRNL) developed a computational fluid dynamics (CFD) model to achieve the objective. The model uses three-dimensional steady-state momentum, continuity equations, air-vapor species balance equation, and two-equation turbulence as the basic governing equations. It was assumed that vapor phase is always transported by the continuous air phase with no slip velocity. In this case, water droplet component was considered as discrete phase for the interfacial heat and mass transfer via Lagrangian approach. Thus, the air-vapor mixture model with discrete water droplet phase is used for the analysis.A series of the modeling calculations was performed to investigate the impact of ambient and operating conditions on the thermal performance of the cooling tower when fans were operating and when they were turned off. The model was benchmarked against the literature data and the SRS test results for key parameters such as air temperature and humidity at the tower exit and water temperature for given ambient conditions. Detailed results will be presented here.

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Evaporative cooling of water in a mechanical draft cooling tower

Cited by 123 publications

References 10 publications

CFD Modeling and Analysis for a-Area and H-Area Cooling Towers

CFD Modeling and Analysis for a-Area and H-Area Cooling Towers

Application of an environmentally optimum cooling water system design in water and energy conservation

CFD Modeling Analysis of Mechanical Draft Cooling Tower

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