Details of Grant 

EPSRC Reference:	GR/M23083/01
Title:	SOLIDS MOTION IN ROTATING KILNS AND DRYERS
Principal Investigator:	Seville, Professor JP
Other Investigators:	Davidson, Professor J Parker, Professor DJ Scott, Dr DM
Researcher Co-Investigators:
Project Partners:	Tioxide Group Services United Biscuits Ltd
Department:	Chemical Engineering
Organisation:	University of Birmingham
Scheme:	Standard Research (Pre-FEC)
Starts:	01 January 1999	Ends:	30 June 2002	Value (£):	330,599
EPSRC Research Topic Classifications:	Particle Technology
EPSRC Industrial Sector Classifications:	Chemicals Food and Drink Pharmaceuticals and Biotechnology
Related Grants:
Panel History:
Summary on Grant Application Form
Rotary drums are used extensively in the process industries as kilns, dryers, mixers and reactors. Though simple in concept, solids motion within them is complex, particularly if internals such as baffles are fitted. Dispersion in the residence time occurs, both due to segregation and by scattering in the angles of fall during successive avalanches. This, and the variation in position of particles relative to the free surface and the walls, give rise to variable product quality. It is proposed to use Positron Emission Particle Tracking to characterise the solids motion on laboratory and pilot scales, in order to establish a comprehensive model of the effects of product and process variables, and to use the results to establish a model of both particle motion and overall residence time distribution. Various internals will be tested, such as baffles and lifters and some novel developments designed to modify the residence time distribution to achieve optimum reactor performance. The results will improve understanding of the fundamental mechanisms of segregation and avalanching in granular flows. This proposal unites the previously separate kilns research of the Birmingham and Cambridge teams; novel experimental work at the former will enable theoretical development at both centres.
Key Findings
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Organisation Website:	http://www.bham.ac.uk