Counter-Flow Cooling Tower Test Cell

Dvořák, Lukáš; Nožička, Jiří

doi:10.1051/epjconf/20146702024

Cited by 4 publications

(4 citation statements)

References 1 publication

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“…It is basically a mixed heat exchanger [2]. The wet cooling tower are consist of a shell [1], a water distribution system with a nozzles [3], a fills [4], [5] and a drift eliminators [6]. The nozzle creates a spray zone [3], [7] and the fill create rain zone [8].…”

Section: Introductionmentioning

confidence: 99%

Droplet Measurement below Single-Layer Grid Fill

Vitkovic

2016

EPJ Web of Conferences

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Abstract. The main part of the heat transfer in a cooling tower is in a fill zone. This one is consist of a cooling fill. For the cooling tower is used a film fill or grid fill or splash fill in the generally. The grid fill has lower heat transfer performance like film fill usually. But their advantage is high resistance to blockage of the fill. The grid fill is consisted with independent layers made from plastic usually. The layers consist of several bars connected to the different shapes. For experiment was used the rhombus shape. The drops diameter was measured above and below the Grid fill.

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Section: Introductionmentioning

confidence: 99%

Droplet Measurement below Single-Layer Grid Fill

Vitkovic

2016

EPJ Web of Conferences

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“…The experimental cell [1] is consisting of a counter flow cooling tower model, a water basin and a water channel (Fig. 1).…”

Section: Experimental Cellmentioning

confidence: 99%

Influence of a Nozzle Type on the Thermal Performance of the Fill

Vitkovic¹

2017

World Congress on Mechanical, Chemical, and Material Engineering

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-The article shows the experimental investigation of a heat performance of the film fill. During the experiment was used two different spray nozzles with same water flow rate. Each spray nozzle created very different water distribution pattern. And this difference was investigating. The Merkel numbers are calculated for all measurement points. The Merkel number Me is a dimensionless number. This experimental study shows that the water distribution above the cooling fill could change the thermal performance of the cooling tower.

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“…Minor losses in the zones are represented by coefficient ζ(z), e.g. [8,9] . Flue gas injection corresponds to a reduction of effective cross-section by the cross-section of flue gas pipe A f g .…”

Section: Quasi One-dimensional Model Of Natural Draft Wet-cooling Towmentioning

confidence: 99%

“…Governing equations for water mass flow rate can be simplified using known value of Merkel number Me [8] as…”

mentioning

confidence: 99%

Mathematical Model of Two Phase Flow in Natural Draft Wet-Cooling Tower Including Flue Gas Injection

Hyhlík

2016

EPJ Web of Conferences

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Abstract. The previously developed model of natural draft wet-cooling tower flow, heat and mass transfer is extended to be able to take into account the flow of supersaturated moist air. The two phase flow model is based on void fraction of gas phase which is included in the governing equations. Homogeneous equilibrium model, where the two phases are well mixed and have the same velocity, is used. The effect of flue gas injection is included into the developed mathematical model by using source terms in governing equations and by using momentum flux coefficient and kinetic energy flux coefficient. Heat and mass transfer in the fill zone is described by the system of ordinary differential equations, where the mass transfer is represented by measured fill Merkel number and heat transfer is calculated using prescribed Lewis factor.

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Counter-Flow Cooling Tower Test Cell

Cited by 4 publications

References 1 publication

Droplet Measurement below Single-Layer Grid Fill

Droplet Measurement below Single-Layer Grid Fill

Influence of a Nozzle Type on the Thermal Performance of the Fill

Mathematical Model of Two Phase Flow in Natural Draft Wet-Cooling Tower Including Flue Gas Injection

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