A Novel Method for Particle Sampling and Size-Classified Electrical Charge Measurement at Power Plant Environment
In this work we have combined the Electrical Low Pressure Impactor ELPI (Dekati Ltd., Finland) with an FPS-4000,Fine Particle Sampler also made by Dekati Ltd. to measure combustion aerosol particle concentration, size distribution and size-classified electrical charge in power plant environment.We show how the FPS is used to take the sample from power plant stack before and after the ESP, we show how the sample is diluted, conditioned and temperature decreased in a controlled way and how the ELPI is then used to determine the particle size distribution, concentration and charge levels in different size classes. We discuss about the effects of sampling and dilution for the particle charge levels and losses.We present the construction and operation principle of each part of the system and how different parts are calibrated for accuracy and for particle losses. We show how the system has been applied for demanding power plant environment and finally present measurement results from pulverized coal power plant showing ELPI measurement results compared to gravimetric impactor measurement showing good agreement between different methods.
ELPI dilution sampling FPS charge measurement
Ville Niemel(a) Erkki Lamminen Ari Laitinen
Dekati Ltd Osuusmyllynkatu 13FIN-33700 Tampere,Finland Tampere University of Technology Department of Physics,Aerosol Physics Laboratory,Tampere
国际会议
11th International Conference on Electrostatic Precipitation(第11届国际电除尘学术会议)
杭州
英文
228-233
2008-10-15（万方平台首次上网日期，不代表论文的发表时间）