RESEARCH ARTICLE

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

  • Shouxuan QIN ,
  • Xiaoshu CAI ,
  • Li MA
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  • Institute of Particle and Two-phase Flow Measurement, University of Shanghai for Science & Technology, Shanghai 200093, China

Received date: 08 Nov 2011

Accepted date: 27 Dec 2011

Published date: 05 Mar 2012

Copyright

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg

Abstract

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.

Cite this article

Shouxuan QIN , Xiaoshu CAI , Li MA . A novel light fluctuation spectrum method for in-line particle sizing[J]. Frontiers in Energy, 2012 , 6(1) : 89 -97 . DOI: 10.1007/s11708-012-0176-z

Acknowledgments

This work was supported by the National Natural Science Foundation of China (Grant Nos. 50836003 and 51076106).
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