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Simulation of industrial granular flow and its effects on the sinter plant operation. / Lee Bridgeman

Swansea University Author: Lee Bridgeman

Abstract

"The supply and bulk handling of raw materials is of fundamental importance in many facets of the manufacturing community, the scope of which ranges from mining to pharmaceuticals and critical aspects of steel production. This thesis is based on the development of a 3D spherical ''Dis...

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Published: 2010
Institution: Swansea University
Degree level: Doctoral
Degree name: EngD
URI: https://cronfa.swan.ac.uk/Record/cronfa42559
first_indexed 2018-08-02T18:55:00Z
last_indexed 2018-08-03T10:10:28Z
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recordtype RisThesis
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spelling 2018-08-02T16:24:29.6654041 v2 42559 2018-08-02 Simulation of industrial granular flow and its effects on the sinter plant operation. 2b9da4e3f0cec80fd82dd4e65c525e08 NULL Lee Bridgeman Lee Bridgeman true true 2018-08-02 "The supply and bulk handling of raw materials is of fundamental importance in many facets of the manufacturing community, the scope of which ranges from mining to pharmaceuticals and critical aspects of steel production. This thesis is based on the development of a 3D spherical ''Discrete Element Method" (DEM) modelling code to assist in the computer simulation of granular flow through a steelworks industrial environment. Presented in this work is a thorough evaluation and review of DEM techniques, highlighting the variety of discrete elements, contact special searches and contact interaction forces. Also addressed here is a validation of the current DEM Fortran code, using the effects of frictional forces on particulate flowing behaviour, in terms of "Angles of Repose". The introduction of these forces followed a "Linear Spring Dash-pot" (LSD) method and "Soft Sphere" approach where contact penetration is small in comparison with element diameter. Both surface and boundary deformations were neglected during contact interaction and boundary conditions were implemented using a "Solid Works" 3D design package. The results of the validation and frictional inputs in this modelling case were used as a calibration to set initial parameters of the discrete elements when simulating different material size distributions, and inter-particulate bonding scenarios due to the influence of moisture. To introduce attractive force due to moisture a "Toriodal Approximation'' was used in conjunction with the "Soft Sphere" method that showed novelty in contact interactions between elements of differing radii. The model was ultimately applied to practical material flow situations that exhibit system deterioration and inter-particulate degradation leading to atmospheric dust suspension. To express quantitive information kinetic energy transfer was recorded at boundary impact scenarios to isolate regions of severe momentum change and high intensity flow rates. The resulting energy trend examinations relating to extensive theoretical application of the current model correlated strongly with actual equipment damage and material flow patterns. The acquisition of data in this format delivers a 3D insight into the internal dynamics of material flow through a domain and could be essential in developmental optimisation." E-Thesis Industrial engineering.;Materials science. 31 12 2010 2010-12-31 COLLEGE NANME Engineering COLLEGE CODE Swansea University Doctoral EngD 2018-08-02T16:24:29.6654041 2018-08-02T16:24:29.6654041 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Lee Bridgeman NULL 1 0042559-02082018162504.pdf 10805308.pdf 2018-08-02T16:25:04.0330000 Output 36254127 application/pdf E-Thesis true 2018-08-02T16:25:04.0330000 false
title Simulation of industrial granular flow and its effects on the sinter plant operation.
spellingShingle Simulation of industrial granular flow and its effects on the sinter plant operation.
Lee Bridgeman
title_short Simulation of industrial granular flow and its effects on the sinter plant operation.
title_full Simulation of industrial granular flow and its effects on the sinter plant operation.
title_fullStr Simulation of industrial granular flow and its effects on the sinter plant operation.
title_full_unstemmed Simulation of industrial granular flow and its effects on the sinter plant operation.
title_sort Simulation of industrial granular flow and its effects on the sinter plant operation.
author_id_str_mv 2b9da4e3f0cec80fd82dd4e65c525e08
author_id_fullname_str_mv 2b9da4e3f0cec80fd82dd4e65c525e08_***_Lee Bridgeman
author Lee Bridgeman
author2 Lee Bridgeman
format E-Thesis
publishDate 2010
institution Swansea University
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description "The supply and bulk handling of raw materials is of fundamental importance in many facets of the manufacturing community, the scope of which ranges from mining to pharmaceuticals and critical aspects of steel production. This thesis is based on the development of a 3D spherical ''Discrete Element Method" (DEM) modelling code to assist in the computer simulation of granular flow through a steelworks industrial environment. Presented in this work is a thorough evaluation and review of DEM techniques, highlighting the variety of discrete elements, contact special searches and contact interaction forces. Also addressed here is a validation of the current DEM Fortran code, using the effects of frictional forces on particulate flowing behaviour, in terms of "Angles of Repose". The introduction of these forces followed a "Linear Spring Dash-pot" (LSD) method and "Soft Sphere" approach where contact penetration is small in comparison with element diameter. Both surface and boundary deformations were neglected during contact interaction and boundary conditions were implemented using a "Solid Works" 3D design package. The results of the validation and frictional inputs in this modelling case were used as a calibration to set initial parameters of the discrete elements when simulating different material size distributions, and inter-particulate bonding scenarios due to the influence of moisture. To introduce attractive force due to moisture a "Toriodal Approximation'' was used in conjunction with the "Soft Sphere" method that showed novelty in contact interactions between elements of differing radii. The model was ultimately applied to practical material flow situations that exhibit system deterioration and inter-particulate degradation leading to atmospheric dust suspension. To express quantitive information kinetic energy transfer was recorded at boundary impact scenarios to isolate regions of severe momentum change and high intensity flow rates. The resulting energy trend examinations relating to extensive theoretical application of the current model correlated strongly with actual equipment damage and material flow patterns. The acquisition of data in this format delivers a 3D insight into the internal dynamics of material flow through a domain and could be essential in developmental optimisation."
published_date 2010-12-31T19:28:39Z
_version_ 1821344341218557952
score 11.04748

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