Experimental study of electrostatic precipitator performance and comparison with existing theoretical prediction models

Kim, S.H; Lee, K.W

doi:10.1016/s0304-3886(99)00044-3

Cited by 110 publications

(36 citation statements)

References 10 publications

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“…Particle collection by this technique has the advantage of a high collection efficiency (especially for small particles) and its pressure drop is low. Numerous attempts have been made in several applications to experimentally use this method to collect aerosol particles (Zukeran et al, 1997;Kim and Lee, 1999;Jedrusik et al, 2001;Laskin and Cowin, 2002;Jedrusik et al, 2003). Moreover, several modeling methods of collection performance have been developed to improve current theoretical works (Kim et al, 2001; Elayyan et al, 2002; Xiangrong et al, 2002.…”

Section: Electrostatic Precipitatormentioning

confidence: 99%

Removal of Soot Particles in Rubber Smoking Chamber by Electrostatic Precipitator to Improve Rubber Sheet Color

Tekasakul

Tantichaowanan

Ōtani

et al. 2006

Aerosol Air Qual. Res.

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Soot particles from wood combustion in the rubber-sheet smoking process darkens the dried sheets, affecting their market price unfavorably. A technique to remove a portion of these particles, especially during the first day of drying, was investigated. A wire-cylinder type corona discharge device or electrostatic precipitator (ESP) was employed to remove the soot particles. Results from a laboratory collection performance test using polystyrene latex particles indicated that the ESP was suitable for use at 220 VAC, which is the highest available voltage supply. The field-test results in a model burner indicated that the device could be used for a period of about 10 hours without cleaning and it could still maintain the collection efficiency at a satisfactory level (higher than 40%). The color of the dried rubber sheets obtained from the smoking chamber in which the collecting device was installed was much lighter than that of the rubber sheets dried in normal operation without removing soot particles. This device could be used in a real rubber smoking chamber by installing 12 identical ESP units in the gas inlet to the chamber.Keywords: corona discharge, rubber sheet, particle collection, wire-cylinder, high voltage et al., Aerosol and Air Quality Research, Vol. 6, No. 1, pp. 1-14, 2006 2 Thailand leads the world in natural rubber production and export. Total production in 2004 was 2.9 million metric tons (Thailand Rubber Research Institute, 2005). About 43% was in the form of ribbed smoked sheets (RSS), in which the rubber latex is coagulated, squeezed to form thin sheets, and then dried in a smoking chamber. Energy consumption and quality of the dried sheets are two major concerns in the process. The color of the dried sheet affects the market price considerably because the RSS is graded according to the impurities in the sheet, as well as to the color. Rubber sheets that are exposed to excessive smoke from wood combustion are dark in color and, hence, the value can be downgraded.Currently, manufacturers deal with this problem by discharging a part of the dust-laden gas after combustion to the atmosphere without using it. However, this results in a huge loss of energy. In order to improve the color of the rubber sheets and not to waste energy, a means of reducing soot particles in the gas is needed. The gas does not require a complete cleanup, since soot particles contain phenolic compounds (Simoneit et al., 1993) which hinder the formation of moulds and bacteria, thus preserving shelf life of the rubber sheets. In this study, an appropriate soot-collecting device is designed and tested in both the laboratory and the field. RUBBER SMOKING CHAMBER AND PARTICLE CHARACTERISTICSMost of the RSS manufacturers in Thailand reside in the south, where production is shifting from large-scale industries to community-level rubber cooperatives. About 500 cooperatives are currently operating throughout the country, each with a capacity to produce about 500-1,000 metric tons per year of ribbed smoked sheets (R...

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Section: Electrostatic Precipitatormentioning

confidence: 99%

Removal of Soot Particles in Rubber Smoking Chamber by Electrostatic Precipitator to Improve Rubber Sheet Color

Tekasakul

Tantichaowanan

Ōtani

et al. 2006

Aerosol Air Qual. Res.

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“…Kim S. and Lee K. [6] have done experimental study of electrostatic precipitator performance. They have designed, built and operated a laboratory-scale single-stage electrostatic precipitator (ESP) in a wind tunnel.…”

Section: Literature Surveymentioning

confidence: 99%

Design Modification of Rapping System to Improve the Dust Collection Efficiency of Electrostatic Precipitator

Wanjari¹,

Narkar²

2014

IJIRSET

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Electrostatic Precipitator is the device used for controlling air pollution. This is used for cleaning of boiler process gases. Process gases contain suspended dust particles. These dust particles are collected on collecting electrodes. The effectiveness of Electrostatic Precipitators is affected by various factors. Periodic cleaning of collecting system plays a major role. Dust gets deposited on collecting electrodes and dislodged by means of vibrations of collecting electrodes.For huge volume of process gas the size of Electrostatic Precipitator will also be large. Since space is major constraints the ultimate solution will to go vertically i.e. increase the height and accordingly the collection area. Since the height is increased old methods of rapping will be ineffective and hence the new methods introduced to increase the vibration. Time is another major constraint for checking of such continuous improvements. So simulation and further physical measurement is more practical method. This paper presents FEA concept of modelling and analysis of collecting electrodes of an Electrostatic Precipitator by Implicit Transient Dynamic Analysis. Experimental testing is done for validation. The results of FEA concept and physical measurements are discussed.

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“…The collecting electrodes are rapped by a number of methods [5][6][7]. Generally, precipitator manufacturers use hammer and anvil rappers to remove particles from the collecting electrodes.…”

Section: Latin American Journal Of Solids and Structures 10(2013) 19 -38mentioning

confidence: 99%

Numerical verification and experimental validation of the FEM model of collecting electrodes in a dry electrostatic precipitator

Nowak

2013

Lat. Am. j. solids struct.

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The subject of the present work is the numerical verification and experimental validation of the FEM model which would enable us to analyse the vibrations of collecting electrodes. The effectiveness of electrostatic precipitators (ESP) depends on many factors. One of these factors is the efficiency of periodic cleaning of the collecting electrodes; thus the dust is removed by inducing vibrations. These vibrations are caused by the axial impact of a hammer on an anvil beam. In the course of the impact, and afterwards, the stresses due to the impact are produced in both the rapper system and in the collecting electrode section. The paper presents a modified finite element method which can be used in simulations and to analyse the vibrations of collecting electrodes. In the verification process the calculation results obtained were compared with those from commercial software (Abaqus). The calculations and measured results were compared for validation. The comparisons were made using peak and RMS (root-mean-squared) values as well as special factors and hit rates. An acceptable compatibility of the results proves that the model can be applied in the analysis of vibrations of electrodes in design practice.

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Experimental study of electrostatic precipitator performance and comparison with existing theoretical prediction models

Cited by 110 publications

References 10 publications

Removal of Soot Particles in Rubber Smoking Chamber by Electrostatic Precipitator to Improve Rubber Sheet Color

Removal of Soot Particles in Rubber Smoking Chamber by Electrostatic Precipitator to Improve Rubber Sheet Color

Design Modification of Rapping System to Improve the Dust Collection Efficiency of Electrostatic Precipitator

Numerical verification and experimental validation of the FEM model of collecting electrodes in a dry electrostatic precipitator

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