Electrical agglomeration of aerosol particles in an alternating electric field

Jukka Hautanen, Markku Kilpeläinen, Esko Kauppinen, Jorma Jokiniemi, Kari Lehtinen

Research output: Contribution to journalArticleScientificpeer-review

34 Citations (Scopus)

Abstract

A laboratory scale test system has been designed and constructed to study the electrical agglomeration of charged aerosol particles as a method to increase the fine particle collection efficiency of electrostatic precipitators.
The system consists of test aerosol generator, aerosol charger, agglomerator chambers, and aerosol measurement equipment. Air atomizing nozzles and the TSI six-jet atomizer have been used as the test particle generators. The test particles have been charged by a corona discharge.
Two types of agglomerator chambers have been investigated. In one agglomerator the gas flows between two parallel plates, across which the alternating high voltage is applied. The other agglomerator is a quadrupole structure with cylindrical electrodes positioned between the grounded plates. Particle concentration and size distribution measurements have been carried out downstream of the agglomerator with agglomerator voltage on and off. Particle concentrations and size distributions have been measured with differential mobility analyzer (DMA) and a Berner low pressure impactor.
These measurements show that agglomeration causes about a 4%-8% decrease in the fine particle concentration when the total mass concentration is between 1 and 2 g/m3.
There was no difference between the results measured with the parallel plate and the quadrupole agglomerator.
Original languageEnglish
Pages (from-to)181-189
JournalAerosol Science and Technology
Volume22
Issue number2
DOIs
Publication statusPublished - 1995
MoE publication typeA1 Journal article-refereed

Fingerprint

Aerosols
agglomeration
Particles (particulate matter)
electric field
Agglomeration
Electric fields
aerosol
Atomizers
Electrostatic precipitators
Electric potential
Flow of gases
Nozzles
gas flow
Electrodes
corona
particle
low pressure
electrode
Air
test

Cite this

Hautanen, J., Kilpeläinen, M., Kauppinen, E., Jokiniemi, J., & Lehtinen, K. (1995). Electrical agglomeration of aerosol particles in an alternating electric field. Aerosol Science and Technology, 22(2), 181-189. https://doi.org/10.1080/02786829408959739
Hautanen, Jukka ; Kilpeläinen, Markku ; Kauppinen, Esko ; Jokiniemi, Jorma ; Lehtinen, Kari. / Electrical agglomeration of aerosol particles in an alternating electric field. In: Aerosol Science and Technology. 1995 ; Vol. 22, No. 2. pp. 181-189.
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abstract = "A laboratory scale test system has been designed and constructed to study the electrical agglomeration of charged aerosol particles as a method to increase the fine particle collection efficiency of electrostatic precipitators. The system consists of test aerosol generator, aerosol charger, agglomerator chambers, and aerosol measurement equipment. Air atomizing nozzles and the TSI six-jet atomizer have been used as the test particle generators. The test particles have been charged by a corona discharge. Two types of agglomerator chambers have been investigated. In one agglomerator the gas flows between two parallel plates, across which the alternating high voltage is applied. The other agglomerator is a quadrupole structure with cylindrical electrodes positioned between the grounded plates. Particle concentration and size distribution measurements have been carried out downstream of the agglomerator with agglomerator voltage on and off. Particle concentrations and size distributions have been measured with differential mobility analyzer (DMA) and a Berner low pressure impactor. These measurements show that agglomeration causes about a 4{\%}-8{\%} decrease in the fine particle concentration when the total mass concentration is between 1 and 2 g/m3. There was no difference between the results measured with the parallel plate and the quadrupole agglomerator.",
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Hautanen, J, Kilpeläinen, M, Kauppinen, E, Jokiniemi, J & Lehtinen, K 1995, 'Electrical agglomeration of aerosol particles in an alternating electric field', Aerosol Science and Technology, vol. 22, no. 2, pp. 181-189. https://doi.org/10.1080/02786829408959739

Electrical agglomeration of aerosol particles in an alternating electric field. / Hautanen, Jukka; Kilpeläinen, Markku; Kauppinen, Esko; Jokiniemi, Jorma; Lehtinen, Kari.

In: Aerosol Science and Technology, Vol. 22, No. 2, 1995, p. 181-189.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Lehtinen, Kari

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AB - A laboratory scale test system has been designed and constructed to study the electrical agglomeration of charged aerosol particles as a method to increase the fine particle collection efficiency of electrostatic precipitators. The system consists of test aerosol generator, aerosol charger, agglomerator chambers, and aerosol measurement equipment. Air atomizing nozzles and the TSI six-jet atomizer have been used as the test particle generators. The test particles have been charged by a corona discharge. Two types of agglomerator chambers have been investigated. In one agglomerator the gas flows between two parallel plates, across which the alternating high voltage is applied. The other agglomerator is a quadrupole structure with cylindrical electrodes positioned between the grounded plates. Particle concentration and size distribution measurements have been carried out downstream of the agglomerator with agglomerator voltage on and off. Particle concentrations and size distributions have been measured with differential mobility analyzer (DMA) and a Berner low pressure impactor. These measurements show that agglomeration causes about a 4%-8% decrease in the fine particle concentration when the total mass concentration is between 1 and 2 g/m3. There was no difference between the results measured with the parallel plate and the quadrupole agglomerator.

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