Reference number : GC-2017-Q3-00518, amendment number : , agreement type : G, recipient legal name : Ein-Mozaffari, Farhad (Ryerson University), recipient country : CA, recipient province : nan, recipient city : Ontario, recipient postal code : nan, program name english : Engage Grants for universities, program name french : Subventions d'engagement partenarial pour les universités, program purpose english : Mixing of highly concentrated slurries is a critical operation in mining industry. The hindered settling velocity_x000D_
must be considered when a solid-liquid mixer is designed for these suspensions. However, due to the inherent_x000D_
complexity of these systems, there is no specific data that provides the actual settling rate of these solid_x000D_
particles in a hindered settling environment._x000D_
Currently, Hayward Gordon designs mixing systems for mining slurries by using the settling velocity of a_x000D_
single particle instead of the hindered settling velocity. This inaccurate approach can lead to oversized_x000D_
dimensioning of the vessel, inappropriate selection of impeller type, size and rotational speed, low energy_x000D_
efficiency and operation difficulties. Therefore, Hayward Gordon is interested in obtaining better insights into_x000D_
the particle settling process in a hindered environment to refine and optimize their mixing design and_x000D_
manufacturing. Thus, the main objective of the proposed research project is to obtain the hindered settling_x000D_
velocity in highly concentrated mining slurries as a function of the solid concentration, solid density and_x000D_
particle size through the coupled computational fluid dynamics (CFD) and discrete element method (DEM)._x000D_
The selection of the correct models is crucial in CFD-DEM coupling._x000D_
This work is of great importance to the mining industry of Canada. The research results will lead to the design_x000D_
of efficient mixing systems for the suspension of highly concentrated slurries. The Canadian mining industry_x000D_
and mining equipment manufacturers can implement the CFD-DEM approach to assess many scenarios on a_x000D_
computer without the additional costs of constructing and testing prototype models. This leads to an improved_x000D_
equipment design, a more reliable process monitoring, a more efficient use of power, a decreased maintenance_x000D_
and operational cost and finally an increased capital cost saving. Thus, the proposed research will contribute to_x000D_
the increased economic activity of the Canadian mining industry, and will impact our society, quality of life_x000D_
and environment._x000D_, program purpose french : Mixing of highly concentrated slurries is a critical operation in mining industry. The hindered settling velocity_x000D_
must be considered when a solid-liquid mixer is designed for these suspensions. However, due to the inherent_x000D_
complexity of these systems, there is no specific data that provides the actual settling rate of these solid_x000D_
particles in a hindered settling environment._x000D_
Currently, Hayward Gordon designs mixing systems for mining slurries by using the settling velocity of a_x000D_
single particle instead of the hindered settling velocity. This inaccurate approach can lead to oversized_x000D_
dimensioning of the vessel, inappropriate selection of impeller type, size and rotational speed, low energy_x000D_
efficiency and operation difficulties. Therefore, Hayward Gordon is interested in obtaining better insights into_x000D_
the particle settling process in a hindered environment to refine and optimize their mixing design and_x000D_
manufacturing. Thus, the main objective of the proposed research project is to obtain the hindered settling_x000D_
velocity in highly concentrated mining slurries as a function of the solid concentration, solid density and_x000D_
particle size through the coupled computational fluid dynamics (CFD) and discrete element method (DEM)._x000D_
The selection of the correct models is crucial in CFD-DEM coupling._x000D_
This work is of great importance to the mining industry of Canada. The research results will lead to the design_x000D_
of efficient mixing systems for the suspension of highly concentrated slurries. The Canadian mining industry_x000D_
and mining equipment manufacturers can implement the CFD-DEM approach to assess many scenarios on a_x000D_
computer without the additional costs of constructing and testing prototype models. This leads to an improved_x000D_
equipment design, a more reliable process monitoring, a more efficient use of power, a decreased maintenance_x000D_
and operational cost and finally an increased capital cost saving. Thus, the proposed research will contribute to_x000D_
the increased economic activity of the Canadian mining industry, and will impact our society, quality of life_x000D_
and environment._x000D_, agreement title english : Use of CFD-DEM Coupling to Determine the Settling Hindered Velocities for Highly Concentrated Mining_x000D_
Slurries, agreement title french : Use of CFD-DEM Coupling to Determine the Settling Hindered Velocities for Highly Concentrated Mining_x000D_
Slurries, agreement number : EGP, agreement value : 25000.0, agreement start date : 2017-12-13, agreement end date : nan, description english : nan, description french : nan, expected results english : nan, expected results french : nan, additional information english : Grant or Award spanning more than one fiscal year (2017-2018 to 2018-2019)., additional information french : Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2018-2019)., owner organization : nserc-crsng, owner organization title : Natural Sciences and Engineering Research Council of Canada | Conseil de recherches en sciences naturelles et en génie du Canada