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www.atmos-meas-tech.net/2/81/2009/
doi:10.5194/amt-2-81-2009
© Author(s) 2009. This work is distributed
under the Creative Commons Attribution 3.0 License.
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
*now at: Laboratory for Energy Systems Analysis, Paul Scherrer Institut, 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. These 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 crosschecked with particle mass concentration and 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, mass filters and a CPC.
Final Revised Paper (PDF, 598 KB) Discussion Paper (AMTD)
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., 2, 81-85, doi:10.5194/amt-2-81-2009, 2009. Bibtex EndNote Reference Manager XML
