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《能源前沿(英文)》 >> 2012年 第6卷 第1期 doi: 10.1007/s11708-012-0176-z

A novel light fluctuation spectrum method for in-line particle sizing

Institute of Particle and Two-phase Flow Measurement, University of Shanghai for Science & Technology, Shanghai 200093, China

发布日期: 2012-03-05

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摘要

This paper discusses two problems in in-line particle sizing when using light fluctuation method. First, by retrieving the ratio of particle concentrations at different time, the intensity of incident light is obtained. There exists narrow error between the calculated and pre-detected value of the intensity of incident light. Secondly, by combining spectrum analysis with Gregory’s theory, a multi-sub-size zone model is proposed, with which the relationship between the distribution of turbidity and the particle size distribution (PSD) can be established, and an algorithm developed to determine the distribution of turbidity. Experiments conducted in the laboratory indicate that the measured size distribution of pulverized coal conforms well with the imaging result.

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