Effect of gravitational deposition on particle tube loss of sampling system
Zhu Runru
Abstract：The effect of gravitational deposition on the transporting loss usually caused a system error in sampling tube according to the gravitational deposition theory.Thus,the measurement error of in-situ horizontal straight sampling tube was theoretically studied in this paper.Results show that with the particle diameter and the residence time increase,the transporting loss increases significantly.The online monitor standard of the ultra-low emission of particle should be less than 10 mg./m3 when considering the transporting loss of the horizontal sampling tube in the in-situ external particle extraction sampling system.In addition,the extra particulate matter emission of a 600 MW coal-fired power plant is about 15.5 t per year due to the effect of the transporting loss on the horizontal straight sampling tube measurement.
Keywords：gravity depositionultra-low emissionparticle concentration moritoringtransport loss
Publication Date：2017-01-01