A Numerical Analysis of the Local Anomalies in a Natural-Draft Cooling Tower

Rotar, Maja; Širok, Brane; Drobnič, Boštjan; Novak, Matej; Donevski, Bozin

doi:10.1080/01457630500207592

Cited by 7 publications

(2 citation statements)

References 4 publications

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“…French mathematician Georges Matheron further developed the interpolation method proposed by Krige and named it kriging [6,8]. Nowadays, this method is used mostly in geostatistics, but it is also suitable for the analysis of measurements in various fields of engineering, for example in power and process plants [2,12,13].…”

Section: Spatial Interpolation Using the Kriging Methodsmentioning

confidence: 99%

Use of the kriging method in determining the properties of gases in large channels

Drobnič¹,

Sekavčnik²,

Oman³

2009

International Journal of Thermal Sciences

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Section: Spatial Interpolation Using the Kriging Methodsmentioning

confidence: 99%

Use of the kriging method in determining the properties of gases in large channels

Drobnič¹,

Sekavčnik²,

Oman³

2009

International Journal of Thermal Sciences

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“…In CT problems, the development of experimental diagnostic methods is oriented at thermodynamic analyses on the local basis of the CT. For this purpose, the cooling tower profiler (CTP) method [5][6][7] for simultaneous measurements of velocities and temperatures of moist air in natural-draught CTs was developed. In the CTP method, velocity and temperature fields of the airflow are measured by a remotely controlled mobile unit, developed to enable air velocity and temperature exit air mapping measurements on a local scale over the entire cooling tower area at an arbitrary measurement point above the droplet eliminators.…”

Section: Introductionmentioning

confidence: 99%

A cross-correlation optical velocimeter

Smrekar¹,

Oman²,

Širok³

et al. 2007

Meas. Sci. Technol.

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This study presents a newly developed approach to velocity measurements of moist air in a natural-draught cooling tower (CT). It is based on the cross-correlation of two signals acquired from infrared (IR) light-to-voltage optical sensors. The air flowing through the CT becomes supersaturated in CT packings and thus consists of small water droplets of size 4–12 µm. The same air usually contains droplets resulting from drift, which drags along too small droplets in the spray zone. When the moist-air droplet pattern crosses the beam emitted by IR light-emitting diodes (LEDs), the optical sensors detect a certain signal. The cross-correlation technique gives the time delay of the measured signals. Therefore, by knowing the distance between the sensors, it is possible to calculate the velocity of the moist air. The method has been developed for dynamic velocity measurements of moist air and has achieved a satisfactory precision. The optical velocimeter is a very practical device that makes it possible to carry out measurements on a local basis across the entire plane area of the CT. With the use of simultaneous measurements of velocities and temperatures, the exact location of problems with the packings, nozzles and water distribution system can be thus determined.

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Heat and mass transfer in natural draft cooling towers

Kashani

Добрего

2013

J Eng Phys Thermophy

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A Numerical Analysis of the Local Anomalies in a Natural-Draft Cooling Tower

Cited by 7 publications

References 4 publications

Use of the kriging method in determining the properties of gases in large channels

Use of the kriging method in determining the properties of gases in large channels

A cross-correlation optical velocimeter

Heat and mass transfer in natural draft cooling towers

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