Browsing Chemical Engineering by Title
Now showing items 670-689 of 992
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Numerical and Experimental Investigations of Thermally Coupled Catalytic Hydrogen Combustion - Reverse Water Gas Shift Reactor for CO2 Conversion to Synthesis Gas
(University of Waterloo, 2023-08-21)From technological, societal, and political perspectives, the optimization of energy utilization, reduction of CO2 emissions, and mitigation of global environmental challenges have emerged as paramount concerns. In this ... -
Numerical modeling and experimental investigation of a prismatic battery subjected to water cooling
(Taylor and Francis, 2017-03-19)In this paper, a numerical model using ANSYS Fluent for a minichannel cold plate is developed for water-cooled LiFePO4 battery. The temperature and velocity distributions are investigated using experimental and computational ... -
Numerical Modeling of Drug Delivery to Solid Tumor Microvasculature
(University of Waterloo, 2013-01-25)Modeling interstitial fluid flow involves processes such as fluid diffusion, convective transport in the extracellular matrix, and extravasation from blood vessels. In all of these processes, computational fluid dynamics ... -
Numerical Simulations of Reactive Extrusion in Twin Screw Extruders
(University of Waterloo, 2010-01-18)In this work, the peroxide-initiated degradation of polypropylene (PP) in co-rotating intermeshing twin-screw extruders (COITSEs) is analyzed by means of numerical simulations. This reactive extrusion (REX) operation is ... -
Nylon-6/Agricultural Filler Composites
(University of Waterloo, 2010-09-02)Preparation of thermoplastics composites using engineering thermoplastics and plant fibers or fillers is a technical challenge because the processing temperature of the thermoplastics is generally above the temperature of ... -
Observability and Economic aspects of Fault Detection and Diagnosis Using CUSUM based Multivariate Statistics
(University of Waterloo, 2010-12-08)This project focuses on the fault observability problem and its impact on plant performance and profitability. The study has been conducted along two main directions. First, a technique has been developed to detect and ... -
Oil Sands Bitumen Emulsion Upgrading by Using In Situ Hydrogen Generated through the Water Gas Shift Reaction
(University of Waterloo, 2014-12-09)Canada has a large reserve of oil sands bitumen which is highly viscous and contains high percentages of asphaltenes and heteroatoms. Currently hot water extraction or steam injection is used in recovering the bitumen as ... -
On the Prediction of Gas Hold-up in Ebullated Bed Reactors
(University of Waterloo, 2019-09-19)Commercial ebullated bed reactors (EBRs) are three-phase fluidized bed systems used for hydroprocessing (upgrading) of bitumen, a major Canadian resource. The objective of this thesis is to improve the understanding of the ... -
On the role of the microporous layer in PEMFC operation
(Elsevier, 2009-03-01)The condition of liquid water breakthrough at the cathode of polymer electrolyte fuel cells (PEMFC) is studied experimentally and data on corresponding water saturation and capillary pressure are provided for gas diffusion ... -
On the Techniques for Efficient Sampling, Uncertainty Quantification and Robust Control of Stochastic Multiscale Systems
(University of Waterloo, 2020-08-25)In order to better understand and leverage natural phenomena to design materials and devices (e.g. biomedical coatings, catalytic reactors, thin conductive films for microprocessors, etc.), stochastic multiscale models ... -
On the use of physical boundary conditions for two-phase flow simulations: Integration of control feedback
(Elsevier, 2018-10-04)The sensitivity of two-phase flow simulations using the Euler–Euler model on the inlet boundary conditions (BCs) is studied. Specifically, the physical relevance of Dirichlet uniform inlet velocity BCs is studied which are ... -
One-pot synthesis of porous silica-supported ultrafine Ni nanoparticles as efficient and stable catalyst for selective hydrogenation of benzophenone
(Elsevier, 2019-12-15)In this work, we report a silica-supported ultrafine Ni catalyst for the selective hydrogenation of benzophenone. This material was developed by a facile one-pot co-assembly syntheses strategy, using Ni(II) chelated alginate ... -
OpenCMP: An Open-Source Computational Multiphysics Package
(University of Waterloo, 2021-08-24)Computational multiphysics offers a safe, inexpensive, and rapid alternative to direct experimentation, but there remain barriers to its widespread use. One such barrier is the generation of conformal meshes of simulation ... -
Operational maps between molecular properties and environmental stress cracking resistance (ESCR)
(Wiley, 2019-01-20)Environmental stress cracking (ESC) is one of the main failure mechanisms involved in polymer fractures. This paper focusses on the environmental stress cracking resistance (ESCR) of polyethylene (PE) in which ESC occurs ... -
Optical Properties of Lithiated Graphite In Relation to a Lithium Ion Battery Fiber Optic Sensor
(University of Waterloo, 2018-02-12)As the demand for lithium-ion batteries (LIBs) has increased, research to increase their life and reliability has also continued. To further advance the ability of determining the material status of a battery during ... -
Optimal and Sustainable Design of Integrated Biorefineries for Microalgae and Municipal Solid Waste Processing
(University of Waterloo, 2023-01-20)With drastic advances occurred in society over decades, there have been growing concerns towards global energy demand and sustainable feedstock supply. Particularly, biomass emerged as one of the potential energy sources ... -
Optimal Design and Operation of Polygeneration Systems Incorporating Renewable Energy Sources and Chemical Production
(University of Waterloo, 2022-02-16)With the energy transition underway, there is a consensus effort from both worldwide governments and industry, to facilitate the integration of more renewable energy into power grids. However, the main challenge with ... -
Optimal Design of Hybrid Membrane Networks for Wastewater Treatment
(University of Waterloo, 2008-05-17)Water consumption and wastewater generation depletes water resources and has a destructive impact on the environment. Recent attention has aimed at preserving water resources and preventing pollution through several routes. ... -
Optimal Integration of Renewable Energy Sources in Oil Refinery Operations
(University of Waterloo, 2017-04-27)Petroleum refining is one of the energy intensive sectors of the oil and gas (O&G) industry. With increase in global energy demand and declining energy return on energy invested (EROEI) of crude oil, global energy consumption ... -
Optimal Location of New Industries in Existing Industrial Areas Accounting for Environmental and Health Risks
(University of Waterloo, 2016-05-13)Nowadays, a major problem throughout the world is air pollution caused mainly by the fast growth in industry. This growth leads to negative impacts on human health and ecosystems directly or indirectly by chemical reactions ...