Browsing Chemical Engineering by Title
Now showing items 564-583 of 992
-
Methodologies for Obtaining Reliable Indicators for the Environmental Stress Cracking Resistance of Polyethylene
(University of Waterloo, 2014-02-13)Environmental stress cracking (ESC) is one of the main, and probably the most common, failure mechanisms involved in polymer fractures. This type of failure is critically important as it occurs suddenly, without any visible ... -
Micro- and Nano-Topographies to Enhance Non-viral Transfection and Non-viral Neuronal Transdifferentiation of hMSCs
(University of Waterloo, 2018-09-26)Transfection and direct conversion, which is referred to as “transdifferentiation” in this thesis, play significant roles in regenerative medicine research including gene therapy, vaccines, modeling of diseases and disorders, ... -
Micro-Additive Manufacturing of Metal-Oxide-Semiconductor Based Gas Sensors for Diabetes Detection via Breath Analysis
(University of Waterloo, 2021-03-15)Additive manufacturing (AM) is arousing more and more interest due to its flexibility to produce complex geometry, low fabrication cost and high material compatibility compared with conventional manufacturing. As a micro-scale ... -
Microfluidic-Based Synthesis of Acrylamide/Sodium Acrylate Copolymer Hydrogel for Enhanced Properties
(University of Waterloo, 2016-08-31)Hydrogels are commonly used in drug delivery1–3, water treatment for heavy-metal removal4, tissue engineering5, and hygienic products, and as a plugging agent for enhanced oil recovery6. In recent years, a number of chemical ... -
Micronization of Polyethylene Wax in an Extrusion Process using Supercritical Carbon Dioxide
(University of Waterloo, 2011-09-30)Supercritical fluid technology is a well documented and emergent technology used in many industries today for the formation of micro- and nano- particles. The use of supercritical fluids allows synthesis of various types ... -
Model Development and Validation of Samaria Doped Ceria (SDC) Based Solid Oxide Fuel Cell Operating with Practical Fuels
(University of Waterloo, 2013-09-24)Solid Oxide Fuel Cell (SOFC) is a promising technology for producing electricity cleanly and efficiently. This type of fuel cell is a high temperature fuel cell operating around 1000C for state-of-the-art SOFC. An advantage ... -
Model Discrimination Using Markov Chain Monte Carlo Methods
(University of Waterloo, 2013-04-26)Model discrimination deals with situations where there are several candidate models available to represent a system. The objective is to find the “best” model among rival models with respect to prediction of system behavior. ... -
Model Refinement and Reduction for the Nitroxide-Mediated Radical Polymerization of Styrene with Applications on the Model-Based Design of Experiments
(University of Waterloo, 2012-09-26)Polystyrene (PS) is an important commodity polymer. In its most commonly used form, PS is a high molecular weight linear polymer, typically produced through free-radical polymerization, which is a well understood and robust ... -
Model-Based Validation of Fuel Cell Hybrid Vehicle Control Systems
(University of Waterloo, 2007-08-07)Hydrogen fuel cell technology has emerged as an efficient and clean alternative to internal combustion engines for powering vehicles, and hydrogen powertrains will aid in addressing key environmental issues such as urban ... -
Modeling a NOx Storage and Reduction Catalyst
(University of Waterloo, 2009-08-28)Lean burn engines are more fuel efficient than standard stoichiometric-burn engines but at the same time, the conventional three-way catalyst is not effective in reducing the NOx in oxygen-rich exhaust. One of the recent ... -
Modeling and Characterization of Lithium Iron Phosphate Battery Electrodes
(University of Waterloo, 2016-09-29)A detailed understanding of lithiation/delithiation dynamics of battery active materials is crucial both for optimizing the existing technologies and for developing new materials. Among all, LiFePO4 (LFP) has been subject ... -
Modeling and Evaluation of Pollutant Emissions from Industrial Biofilters by Dispersion Models
(University of Waterloo, 2015-01-27)With gradually increasing strict environmental regulations that control emissions of volatile organic compounds (VOCs), reduced sulphur compounds and nuisance odors from industries, there is a growing need for air pollution ... -
Modeling and Experimental Studies of SO₂ Effects on CO₂ Capture with Chilled Ammonia Solvent
(University of Waterloo, 2016-11-18)Combustion of fossil fuel produces air emissions including carbon dioxide, nitric oxide, and sulfur dioxide, which cause severe environment problems, in particular, global warming and environmental pollution. The discharge ... -
Modeling and Optimization of Biomass Supply Chain for Energy, Chemicals and Materials Productions
(University of Waterloo, 2016-05-18)In the growing concerns towards global environmental qualities and sustainable feedstocks supplies, scientific and technological efforts were intensified to utilize alternative renewable resources. In this regard, biomass ... -
MODELING AND OPTIMIZATION OF CRUDE OIL DESALTING
(University of Waterloo, 2009-01-21)When first received by a refinery, the crude oil usually contains some water, mineral salts, and sediments. The salt appears in different forms, most often times it is dissolved in the formation water that comes with the ... -
Modeling and Optimization of Desalting Process in Oil Industry
(University of Waterloo, 2009-10-02)Throughout a very long piping network crude oil in Saudi Arabia is sent to Gas Oil Separation Plant called GOSP. The main objectives of the GOSP are: - Separation of the associated gas through pressure drop in two series ... -
Modeling and optimization of natural gas processing and production networks
(University of Waterloo, 2015-08-13)Natural gas is a nonrenewable energy source, so it is important to use it and utilize it in a sustainable manner. Globally, about 25% of energy consumption is supplied and fulfilled by natural gas and this percentage will ... -
Modeling and State Estimation of Bio-processes using Dynamic Flux Balances
(University of Waterloo, 2023-05-16)Due to the increasing demand for bio-pharmaceuticals, optimization of bio-processes' productivity and reduction of process variability have become critical goals for manufacturers. Mathematical models of the fermentation ... -
Modeling and State Estimation of Lithium-Ion Battery Packs for Application in Battery Management Systems
(University of Waterloo, 2018-05-10)As lithium-ion (Li-Ion) battery packs grow in popularity, so do the concerns of its safety, reliability, and cost. An efficient and robust battery management system (BMS) can help ease these concerns. By measuring the ... -
Modeling of a Renewable Energy System, Experiential Innovation and Technology Centre
(University of Waterloo, 2008-10-14)Energy consumption has been increasing rapidly over the last few decades. In 2003, Ontario’s energy needs were in the order of 155.1 TWh and are expected to increase to 168.9 TWh by 2014. This will create an increased ...