The 12th International Conference on Fluidization - New Horizons in Fluidization Engineering
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May 13-17, 2007
Positron Emission Particle Tracking (PEPT) has over the last decade become an established technique for studying the motion of particles in granular and fluid systems. Until recently, this technique was confined to use with medically-derived cameras that have fixed limits in terms of the size and position of the field of view. This provides some constraints on the geometry and scale of process equipment that can be viewed. Increasing demand for greater flexibility in the use of the PEPT technique - in larger process equipment and, more importantly, in industrial equipment in situ - has led to the development of the modular PEPT camera. This comprises a set of individual detectors, which can be arranged around the equipment in whatever configuration is appropriate to enable particle tracking. This paper reports the use of the modular camera to track particle motion on a 750mm diameter pressurised fluidised bed pilot plant reactor on an industrial plant. The results show how the technique can be used reliably on large scale equipment to measure quantities such as circulation time.
A. Ingram, M. Hausard, X. Fan, D. J. Parker, J.P.K. Seville, N. Finn , and M. Evans, "Portable Positron Emission Particle Tracking (PEPT) for Industrial Use" in "The 12th International Conference on Fluidization - New Horizons in Fluidization Engineering", Franco Berruti, The University of Western Ontario, London, Canada; Xiaotao (Tony) Bi, The University of British Columbia, Vancouver, Canada; Todd Pugsley, University of Saskatchewan, Saskatoon, Saskatchewan, Canada Eds, ECI Symposium Series, (2007). http://dc.engconfintl.org/fluidization_xii/60