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Charging- and removal efficiency of an ESP in a 250 kW biomass boiler
Linnaeus University, Faculty of Science and Engineering, School of Engineering. (Bioenergiteknik)
Linnaeus University, Faculty of Science and Engineering, School of Engineering. (Bioenergiteknik)
Linnaeus University, Faculty of Science and Engineering, School of Engineering. (Bioenergiteknik)
2011 (English)In: International Conference on Electrostatic Precipitation XII, ICESP Nürnberg 2011, 2011Conference paper (Refereed)
Abstract [en]

The combustion of biomass creates ultra fine particulate matter which is not precipitated by traditional multi cyclone technique, usually adopted on small scale plants. In Sweden the number of small bio fuelled plants is increasing and there is a need for cost effective means to precipitate the ultra fine particles formed. One such technique may be electrostatic precipitation, but the economy of scale is a constraining factor for systems commercially available today. This paper describes field tests of a low cost electrostatic precipitator, ESP, including not only investigation of collection efficiency, but also measurement of charging effectiveness. The aim of the tests was to determine the potential for the low cost ESP design to form part of an electrostatic precipitation system for use on bio fuelled plants in the megawatt scale. The charges acquired by the particles have been measured using a low pressure cascade impactor, ELPI. Measurements of charges were carried out on particles escaping from the ESP. The results of the measurements of particle charges indicates that the method may correctly reflect the mean charge levels of particles of the different sizes usually found within the fine particle mode of flue gases from biomass combustion.

Place, publisher, year, edition, pages
Keyword [en]
Biomass, boiler, electrostatic, precipitation, particles, combustion
National Category
Engineering and Technology
Research subject
Technology (byts ev till Engineering); Technology (byts ev till Engineering), Bioenergy Technology
URN: urn:nbn:se:lnu:diva-12037OAI: diva2:420328

Founded by the Swedish National Energy Administration / Finansiering genom Energimyndigheten

Available from: 2011-06-07 Created: 2011-06-01 Last updated: 2014-03-05Bibliographically approved

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Pettersson, JensStrand, MichaelLin, Leteng
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