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The Development And Numerical Modelling Of A Representative Elemental Volume For Packed Sand, Ashraf Thabet
The Development And Numerical Modelling Of A Representative Elemental Volume For Packed Sand, Ashraf Thabet
Electronic Thesis and Dissertation Repository
The motivation of this thesis is the development of simple microscopic-scale model (representative elemental volume; REV) that can be used to conduct flow and heat transfer simulations from which closure coefficients can be established for the volume-averaged transport equations for porous media (packed bed). The thesis provides a brief introduction to the computational technique adopted for the geometric generation of the REV (YADE), followed by a parametric study undertaken to reveal the minimum number of particles inside the REV that are required to mimic the appropriate physics. Additional analysis was conducted with the goal of determining the influence of deviation …
Parametric Study On A Novel Waste Heat Recovery System, Ghaleb Rustom Abdul Sater
Parametric Study On A Novel Waste Heat Recovery System, Ghaleb Rustom Abdul Sater
Electronic Thesis and Dissertation Repository
The present thesis is based on an industry-sponsor project involving a novel waste heat-to-electricity conversion system. This proprietary system utilizes thermal energy from a low temperature heat sources to produce torque that drives an electric generator to produce electricity. The system needs to be studied through scientific research to help with optimizing the product development, component design, and overall system performance. The main objectives of this study are to develop simulation tools (numerical model) that will allow to simulate the thermo-fluid processes in various system components and to use this numerical model to study the heat transfer and phase-change processes …