Browsing University of Waterloo by Supervisor "Ricardez-Sandoval, Luis"
Now showing items 1-20 of 23
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Chemical-Looping Technology: Application of Nonlinear Model Predictive Control and Reactor Network Modelling Using Biomass as a Fuel
(University of Waterloo, 2023-08-11)As climate change becomes a more pressing issue, there is increasing research being performed to investigate greenhouse gas reduction strategies such as carbon capture technology and sustainable fuels. To this end, ... -
CO2 Conversion to Syngas and Hydrocarbons over Transition Metal-Based Catalysts Synthesized via Reverse Microemulsion Method
(University of Waterloo, 2024-03-28)This thesis offers a comprehensive exploration into the development, exploration, and practical implications of various catalysts, with a particular focus on their performance and critical roles in the efficient and ... -
A computational study of practical issues arising in short-term scheduling of a multipurpose facility
(University of Waterloo, 2019-01-23)This thesis focuses on two important considerations when solving short term scheduling problems for multipurpose facilities: deciding when rescheduling should be performed and choosing efficient time representations for ... -
Development of a Moving Front Kinetic Monte Carlo Algorithm to Simulate Moving Interface Systems
(University of Waterloo, 2023-06-02)Moving interfaces play vital and crucial roles in a wide variety of different natural, technological, and industrial processes, including solids dissolution, capillary action, sessile droplet spreading, and superhydrophobicity. ... -
Dynamic Optimization Applied for Modelling and Optimal Control of a Packed Bed Reactor for Chemical-Looping Combustion
(University of Waterloo, 2019-08-26)Chemical-looping combustion (CLC) has recently emerged as a promising technology capable of curbing CO2 emissions while also reducing the energy penalty entailed in carbon capture and sequestration (CCS). The novelty of ... -
A Framework for Explicit Model Predictive Control using Adjustable Robust Optimization and Economic Optimization of an Industrial-Scale Sulfuric Acid Plant
(University of Waterloo, 2018-12-20)Optimization plays an important role in the operation of chemical engineering systems. Due to their typical size, different optimization tools and techniques are required to improve the efficiency in process operations. ... -
Integration of design and control for large-scale applications: a back-off approach
(University of Waterloo, 2020-02-14)Design and control are two distinct aspects of a process that are inherently related though these aspects are often treated independently. Performing a sequential design and control strategy may lead to poor control ... -
Integration of Design and Control under Uncertainty: A New Back-off Approach using PSE Approximations
(University of Waterloo, 2016-08-02)Chemical process design is still an active area of research since it largely determines the optimal and safe operation of a new process under various conditions. The design process involves a series of steps that aims to ... -
Modelling, Scheduling and Control of Pilot-Scale and Commercial-Scale MEA-based CO2 Capture Plants
(University of Waterloo, 2017-01-17)Recent reports have shown that global population is rising and more fossil fuels, such as coal and natural gas, are required to meet the global energy demands. The adverse effect of burning fossil fuels has become a concern ... -
A Multi-Scale Model for Nickel-Based Oxygen Carrier in Chemical-Looping Combustion
(University of Waterloo, 2019-07-19)The selection of oxygen carrier (OC) particles is crucial for the development of chemical-looping combustion (CLC) technology. Common OC particle models often involve first-order chemical reactions with respect to the ... -
Multiscale Simulation of CO2 Reduction in Solid Oxide Electrolysis Cells
(University of Waterloo, 2020-12-10)Electrochemical CO2 reduction in solid oxide electrolysis cell (SOEC) is a promising technology to address the global issue of greenhouse emissions. SOEC operates at high temperatures (>873K), possessing high energy ... -
New approaches for the real-time optimization of process systems under uncertainty
(University of Waterloo, 2023-06-05)In the process industry, the economical operation of systems is of utmost importance for stakeholders to remain competitive. Moreover, economic incentives can be used to drive the development of sustainable processes, which ... -
A Novel Back-Off Algorithm for the Integration Between Dynamic Optimization and Scheduling of Batch Processes Under Uncertainty
(University of Waterloo, 2019-12-04)This thesis presents a decomposition algorithm for obtaining robust scheduling and control decisions. It iteratively solves scheduling and dynamic optimization problems while approximating stochastic uncertainty through ... -
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 ... -
Optimization Algorithms for Integration of Design, Control, and Scheduling for Chemical Processes Subject to Disturbances and Uncertainty
(University of Waterloo, 2017-10-24)Optimization of multiproduct processes is vital for process performance, especially during dynamic transitions between operating points. However, determining the optimal operating conditions can be a challenging problem, ... -
Reduced Order Modeling and Scale-up of an Entrained Flow Gasifier
(University of Waterloo, 2017-01-16)Climate change has increased attention towards reduction of carbon dioxide (CO2) emissions and other heat-trapping gases to the atmosphere. This has affected the operation of process industries, particularly solid fuel ... -
Reverse Water Gas Shift Reaction over High Surface Area γ-Al2O3 Supported Mo2C Nanoparticles Synthesized by Reverse Microemulsion Method
(University of Waterloo, 2019-08-23)Increasing concentrations of greenhouse gases (GHG), especially carbon dioxide (CO2), in the atmosphere are forecasted to result in adverse environmental impacts. One attractive approach for mitigation of CO2 emissions is ... -
Robust Nonlinear Model Predictive Control of Biosystems described by Dynamic Metabolic Flux Models
(University of Waterloo, 2019-05-13)The accuracy of the model used for prediction in Nonlinear Model Predictive Controller (NMPC) is one of the main factors affecting the closed loop performance. Since it is impossible to formulate a perfect model for a real ... -
Robust Optimization of a Post-combustion CO2 Capture Absorber Column under Process Uncertainty
(University of Waterloo, 2019-02-07)In recent years, greenhouse gas (GHG) emissions is a global concern due to high concentrations of these gases in the atmosphere. Carbon capture and storage (CCS) has been suggested as an attractive alternative to curb ... -
Scheduling process operations under uncertainty and integration with long term planning
(University of Waterloo, 2022-09-22)This thesis centers upon the application of mathematical modelling, optimization theory and uncertainty analysis to the problem of scheduling batch operations for large scale industries. Over the years, decision making ...