Application of neutron techniques to studies of reactor fluid dynamics

Techniques have been developed for determining residence time distributions, flow rates and levels or distributions of materials contained inside reactor vessels with metal walls. The techniques, which utilize the scattering and absorption of neutrons emitted from a small encapsulated neutron source...

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Bibliographic Details
Published in:The Chemical engineering journal 1987, Vol.34 (1), p.35-46
Main Authors: Clark, Keith N., Foster, Neil R.
Format: Article
Language:English
Subjects:
Applied sciences
Chemical engineering
Exact sciences and technology
Reactors
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Summary:Techniques have been developed for determining residence time distributions, flow rates and levels or distributions of materials contained inside reactor vessels with metal walls. The techniques, which utilize the scattering and absorption of neutrons emitted from a small encapsulated neutron source, are non-intrusive, suitable for use on thick-walled vessels, do not require radioactive tracers to be used and are especially suited to the study of systems containing hydrogen. The results of studies of flow and phase distributions in a variety of laboratory bubble column reactors show that the techniques are suitable for detecting liquids in vessels with wall thicknesses of up to 100 mm and for detecting tracer concentrations as low as 0.005 wt. %.
ISSN:0300-9467
1873-5541
DOI:10.1016/0300-9467(87)85004-9