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www.atmos-meas-tech-discuss.net/1/435/2008/
doi:10.5194/amtd-1-435-2008
© Author(s) 2008. This work is distributed
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Influence of particle charging on TEOM measurements in the presence of an electrostatic precipitator
1Institute for Aerosol and Sensor Technology, University of Applied Sciences, Windisch, Switzerland
2Bioenergy Research Group, University of Applied Sciences, Lucerne, Horw, Switzerland
Abstract. The efficiency of an electrostatic precipitator (ESP) for reducing wood combustion emissions was investigated. Real-time measurements were conducted by directly reading the change in frequency of the tapered element in a Thermo Scientific 1400a TEOM. The measurements have been shown to be influenced by the charge on the aerosols reaching the tapered element such that the TEOM overestimates mass concentration. This electrostatic effect was cross-checked with particle number concentration measurements where no influence was observed. Placing a radioactive neutraliser prior to the TEOM leads to agreement between observed ESP efficiencies as measured by both the TEOM and a CPC.
Discussion Paper (PDF, 620 KB) Interactive Discussion (Closed, 3 Comments) Final Revised Paper (AMT)
Citation: Meyer, N. K., Lauber, A., Nussbaumer, T., and Burtscher, H.: Influence of particle charging on TEOM measurements in the presence of an electrostatic precipitator, Atmos. Meas. Tech. Discuss., 1, 435-449, doi:10.5194/amtd-1-435-2008, 2008. Bibtex EndNote Reference Manager XML
