Effect of charged water drop atomization on particle removal performance in plate type wet electrostatic precipitator

2020 ◽  
Vol 104 ◽  
pp. 103426 ◽  
Author(s):  
Chenzi Teng ◽  
Xing Fan ◽  
Jian Li
2013 ◽  
Vol 8-9 ◽  
pp. 165-174
Author(s):  
Gabriel Nicolae Popa

Plate-type electrostatic precipitators are the largest and most used industrial dusts control, most applications are in the production of electricity (thermoelectric power plants). In many industrial applications, plate-type precipitators have three sections and silicon-controlled rectifier power supplies type. Although, the collection efficiency obtained by these type of precipitators are more than 95%, most of the dust particles with diameter less than 10 μm remain un-collected. To improve the collection efficiency different electrical and/or mechanical options can be used. To improve the collection efficiency of industrial plate-type precipitators, the paper presents two practical options. The first solution would be replacing the power supplies silicon-controlled rectifier - with other special power supplies (intermittent power supplies, high frequency power supplies) depending on the dust resistivity; the second solution would be to add a new section at precipitator an expensive solution, usually the last. The technological and electrical sizes, simulated and measured, are presented for the proposed solutions.


2019 ◽  
Vol 130 ◽  
pp. 61-75 ◽  
Author(s):  
Hak-Joon Kim ◽  
Myungjoon Kim ◽  
Bangwoo Han ◽  
Chang Gyu Woo ◽  
Ayyoub Zouaghi ◽  
...  

2016 ◽  
Vol 74 (12) ◽  
pp. 2898-2908
Author(s):  
Joseph Albert Mendoza ◽  
Dong Hoon Lee ◽  
Sang-Il Lee ◽  
Joo-Hyon Kang

Hydrodynamic separators (HDSs) have been used extensively to reduce stormwater pollutants from urbanized areas before entering the receiving water bodies. They primarily remove particulates and associated pollutants using gravity settling. Two types of HDSs with different structural configurations of the inner vortex-inducing components were presented in this study. One configuration consisted of a dip cylindrical plate with a center shaft while the other one has a hollow screen inside. With the help of computational fluid dynamics, the performance of these different types of HDSs have been evaluated and comparatively analyzed. The results showed that the particle removal efficiency was better with the cylindrical plate type HDSs than the screen type HDSs because of the larger swirling flow regime formed inside the device. Plate type HDSs were found more effective in removing fine particles (∼50 μm) than the screen type HDSs that were only efficient in removing large particles (≥250 μm). Structural improvements in a HDS such as increase in diameter and angle of the inlet pipe can enhance the removal efficiencies by up to 20% for plate type HDS while increase in the screen diameter can increase removal efficiencies of the screen type HDS.


2010 ◽  
Vol 16 (3) ◽  
pp. 229-236
Author(s):  
Slavko Djuric ◽  
Petko Stanojevic ◽  
Damir Djakovic ◽  
Aleksandar Jovovic

The goal of experimental investigations shown in this paper is to estimate operating efficiency degree of the electrostatic precipitator on a real industrial plant (at thermal power plant ?Gacko? with electric power of 310MW, Bosnia & Herzegovina) and to use obtained results as a base of periodical engineering or continual measurement and to compare them with the investigations of other investigators. Investigation of the electrostatic precipitator performance was done according to . BASISO9096:2003 In this paper the electrostatic precipitator efficiency during ash particle removal with wide range of particle sizes from 1 to 250mm .93%is evaluated. Exploitational experience points that electrostatic precipitators are efficient for the coals of different quality (coal particles diameters bigger than 1) and that they could be optimized during the exploitation itself and for some following processes (e.g. flue gas desulphurization). Within the measurement plane, measurements were made on points per section. It has been noticed that ash removal degrees obtained experimentally (3 investigations) have approximately equal value (95 to 97.78). The best concordance with the results of experimental investigation shows the Deutsch equation, while theoretical models of Zhibin-Guoquan and Nobrega-Falaguasta-Coury do not correspondent well with the results of experimental investigations. For the ash particles with the diameters less than 17.5 there is no good correlation between investigated theoretical models. The highest deviation of the model for ash particles with diameters less than is notable in the case of usage of the Deutsch equation. ?m17.5?m20%?m.


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