| EPSRC Reference: |
GR/J54161/01 |
| Title: |
ATTRITION AND SEGREGATION IN BULK PARTICULATE SOLIDS |
| Principal Investigator: |
Ghadiri, Professor M |
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| Project Partners: |
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| Department: |
Chemical & Process Engineering |
| Organisation: |
University of Surrey |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
19 May 1994 |
Ends: |
18 July 1997 |
Value (£): |
168,207
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| EPSRC Research Topic Classifications: |
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| EPSRC Industrial Sector Classifications: |
| Pharmaceuticals and Biotechnology |
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Summary on Grant Application Form |
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Bulk particulate solids subjected to compression and shearing may experience attrition and segregation of the debris which cause dust hazards as well as difficulty in materials handling. This is a serious problem in process industries, which has been addressed by academic work in some depths by experimental approaches. There is however no theoretical analysis of the process and consequently it has proved difficult so far for example to decouple the contributions of the surface wear and particle fragmentation to predict the rate and extent of segregation in such systems, and to predict the effect of the applied load and strain rate. Attrition and segregation phenomena are not easily amenable to analysis by continuum mechanics approaches because of the generation of fines which can alter the yield conditions and rheology of the system. With recent progress in granularassembly simulations and in our understanding of the contact damage mechanics it is now possible to develop a distinct element analysis code to simulate the wear and fragmentation of particles undergoing compression and shear deformations. It is proposed to develop models of wear and fragmentation for single particles and to incorporate these models in the distinct element analysis code TRUBAL in order to investigate the effects of the applied load, and of the strain rate on at the attrition and segregation rates, and to develop predictive models based on the micromechanics of the assembly.A dedicated computer with full usage is required for this application due to extensive numerical calculations required.
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Key Findings |
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Potential use in non-academic contexts |
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Impacts |
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| Description |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.surrey.ac.uk |