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

doi:10.1117/12.145721

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 Publication › Conference article › peer-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 language	English
Pages (from-to)	917-925
Number of pages	9
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	1801
DOIs	https://doi.org/10.1117/12.145721
Publication status	Published - 1 Jan 1993
Externally published	Yes
Event	20th International Congress on High Speed Photography and Photonics 1992 - Victoria, Canada Duration: 21 Sept 1992 → 25 Sept 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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10.1117/12.145721

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

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.",

author = "Zheng, {Zeng Rong} and Grace, {J. R.} and Zhu, {J. X.}",

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AU - Zheng, Zeng Rong

AU - Grace, J. R.

AU - Zhu, J. X.

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Y1 - 1993/1/1

N2 - 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.

AB - 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.

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Y2 - 21 September 1992 through 25 September 1992

ER -

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

Abstract

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