Design and evaluation of a high concentration, high penetration unipolar corona ionizer for electrostatic discharge and aerosol charging

The aim of this paper is to design and evaluate a high concentration, high penetration unipolar corona ionizer. The electrostatic characteristics in terms of voltage-current relationships of the present ionizer in the discharge zones for positive and negative coronas were discussed. Using ion curren...

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Main Authors: Panich Intra, Nakorn Tippayawong
Format: Journal
Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/52546
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-525462018-09-04T09:26:50Z Design and evaluation of a high concentration, high penetration unipolar corona ionizer for electrostatic discharge and aerosol charging Panich Intra Nakorn Tippayawong Engineering The aim of this paper is to design and evaluate a high concentration, high penetration unipolar corona ionizer. The electrostatic characteristics in terms of voltage-current relationships of the present ionizer in the discharge zones for positive and negative coronas were discussed. Using ion current measurement, the concentration and penetration of ions were evaluated at corona voltages across the needle electrodes between 1 and 4 kV, flow rates between 1 and 5 L/min, and an operating pressure of 1 atm. In the discharge zone of the ionizer, the highest ion concentrations were found to be about 1.71×1014 and 5.09×1014 ions/m3 for positive and negative coronas, respectively. At the outlet of the ionizer, it was found that the highest ion concentration was about 1.95×1013 and 1.91×1013 ions/m3 for positive and negative coronas, respectively. The highest ion penetration for positive and negative coronas through the ionizer was found to be about 98% and 33%, respectively. The Nit product for positive and negative coronas was also found to 1.28×1013 and 7.43×1013 ions/m3s, respectively. From the findings, this ionizer proved to be particularly useful as an aerosol charger for positive and negative charge before the detector in an electrical aerosol detector. 2018-09-04T09:26:50Z 2018-09-04T09:26:50Z 2013-10-03 Journal 19750102 2-s2.0-84884716157 10.5370/JEET.2013.8.5.1175 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84884716157&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/52546
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Engineering
spellingShingle Engineering
Panich Intra
Nakorn Tippayawong
Design and evaluation of a high concentration, high penetration unipolar corona ionizer for electrostatic discharge and aerosol charging
description The aim of this paper is to design and evaluate a high concentration, high penetration unipolar corona ionizer. The electrostatic characteristics in terms of voltage-current relationships of the present ionizer in the discharge zones for positive and negative coronas were discussed. Using ion current measurement, the concentration and penetration of ions were evaluated at corona voltages across the needle electrodes between 1 and 4 kV, flow rates between 1 and 5 L/min, and an operating pressure of 1 atm. In the discharge zone of the ionizer, the highest ion concentrations were found to be about 1.71×1014 and 5.09×1014 ions/m3 for positive and negative coronas, respectively. At the outlet of the ionizer, it was found that the highest ion concentration was about 1.95×1013 and 1.91×1013 ions/m3 for positive and negative coronas, respectively. The highest ion penetration for positive and negative coronas through the ionizer was found to be about 98% and 33%, respectively. The Nit product for positive and negative coronas was also found to 1.28×1013 and 7.43×1013 ions/m3s, respectively. From the findings, this ionizer proved to be particularly useful as an aerosol charger for positive and negative charge before the detector in an electrical aerosol detector.
format Journal
author Panich Intra
Nakorn Tippayawong
author_facet Panich Intra
Nakorn Tippayawong
author_sort Panich Intra
title Design and evaluation of a high concentration, high penetration unipolar corona ionizer for electrostatic discharge and aerosol charging
title_short Design and evaluation of a high concentration, high penetration unipolar corona ionizer for electrostatic discharge and aerosol charging
title_full Design and evaluation of a high concentration, high penetration unipolar corona ionizer for electrostatic discharge and aerosol charging
title_fullStr Design and evaluation of a high concentration, high penetration unipolar corona ionizer for electrostatic discharge and aerosol charging
title_full_unstemmed Design and evaluation of a high concentration, high penetration unipolar corona ionizer for electrostatic discharge and aerosol charging
title_sort design and evaluation of a high concentration, high penetration unipolar corona ionizer for electrostatic discharge and aerosol charging
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84884716157&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/52546
_version_ 1681423970820161536