Application of high speed photography with rapidly changing colour to a cold model circulating fluidized bed

Zeng Rong Zheng, J. R. Grace, J. X. Zhu

Research output: Journal PublicationConference articlepeer-review

1 Citation (Scopus)

Abstract

A new technique, named "Microprocessor-Controlled Stroboscope High Speed Photography", has been tested. This instrument uses sequential flashes of different colours, with the frequency controlled by a microprocessor to freeze the motion of individual moving tracer particles. By this means, a series of different colour images of moving particles can be recorded on each frame of film. Accordingly, the velocities, accelerations and trajectories of moving particles can be determined, and circulation patterns can be traced. Tests were carried out with particles of 100 to 500 μm diameter in a Circulating Fluidized Bed (CFB), with measured velocities from 0.56 m/s to 10 m/s to demonstrate the usefulness of the new technique.

Original languageEnglish
Pages (from-to)917-925
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume1801
DOIs
Publication statusPublished - 1 Jan 1993
Externally publishedYes
Event20th International Congress on High Speed Photography and Photonics 1992 - Victoria, Canada
Duration: 21 Sep 199225 Sep 1992

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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