Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 78 for “"Microreactor"”.
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Microreactor for remote Canadian communities
… work presents the conceptual design of a 10 MWth microreactor that can be used to provide district heating and 3.5 MW of electricity to remote communities. The reactor has a lead-cooled and graphite-moderated core with 13 vertical fuel channels containing 10 wt% enriched HALEU fuel. The core is …
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Deciphering Biomass Fragmentation using Millisecond Microreactor Kinetics
… on fragmentation of cellulose using two novel microreactor systems, a. Quantitative Carbon Detector (QCD) b. Pulse Heated Analysis of Solid Reactions (PHASR). Current research of complex chemical systems, including biomass pyrolysis, requires analysis of large analyte mixtures (>100 compounds). …
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Evaluation of microreactor technology for multicomponent reactions
… wordt een nieuwe technologie in de vorm van microreactoren geëvalueerd. Een betere massa- en warmtetransfer, minder opschalingproblemen en een veiliger gebruik van toxische componenten worden hierbij als voordelen naar voor geschoven. In deze thesis werd daarom intensief onderzoek verricht …
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CE-microreactor-CE-MS-MS for protein analysis
… of MS. Integrating on-line enzymatic microreactor digestion with a CE-MS system reduces sample handling and allows fast digestions of small protein samples.In this thesis work, an on-line CE-microreactor-CE-MS-MS instrument is developed that can separate proteins in a first dimension, …
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Conceptual Design of a Nuclear Microreactor Transportation Cask
Nuclear microreactors are a rising technology with the potential to be fueled at a central facility and transported to the operation site, which would mark the first attempt to transport a fueled commercial reactor in the US. A standard Type B cask may be adapted to transport a fueled microreactor …
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Kinetic modeling and automated optimization in microreactor systems
… requires significant time and materials. Silicon microreactor systems have been shown advantageous for studying chemical reactions due to their small volume, rapid mixing, tight temperature control, large range of operating conditions, and increased safety. The primary goal of this thesis is to …
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Nuclear Microreactor-Powered Container Ships for Maritime Decarbonization
… infrastructure, safety, and cost. Nuclear microreactors offer high energy density, zero operational emissions, and multi-year endurance, but require coordinated regulatory development and stakeholder engagement for commercial adoption. This thesis evaluates the feasibility of integrating …
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Development of microreactor setups for microwave organic synthesis
… the understanding of microwave heating and the microreactor design challenges involved through both chemical experiments and computational models. The original goal of this research is to develop a microreactor system in order to carry the microwave organic synthesis in continuous flow format …
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Fabrication of a picoliter microreactor with multilayer elastomer values
… compartmentalize reactions in devices. Current microreactors only allow researchers to do one test at a time. Devices with the capability to compartmentalize reactions using valves could perform multiple reactions simultaneously. This thesis details the fabrication and design of a microreactor …
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Microreactor technology : scale-up of multiphase continuous flow chemistries
Microreactors have been demonstrated to provide many advantages over conventional process technologies for the synthesis of chemical compounds and kinetic studies at the laboratory scale. High heat and mass transfer rates, rapid mixing, and higher selectivities and conversions can be achieved in …
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Nickel aluminide coating as catalyst in steam methane reforming microreactor
The catalyst deposition in microreactor for steam methane reforming (SMR) on a micro-scale poses new opportunities due to lack of literatures. Using plate-type catalyst as a basis, a foundation work on the preparation and analysis of catalyst deposition, specifically by dip coating (DC) method was …
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Modeling the chemical, diffusional, and thermal processes of a microreactor
… model of the multiphysics present in a typical microreactor using propane combustion as a fuel source. The system is fully described by energy, momentum, and mass equations, all of which are highly coupled by their dependence on temperature. Using the work done on the S[mu]RE IV microreactor as …
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Development of a microreactor system for unsteady-state Fischer- Tropsch synthesis
Vibrofluidized microreactor systems have been developed for studies of unsteady-state Fischer-Tropsch synthesis. This development is aimed at preventing carbon deposition on a fused-iron catalyst in a novel reactor called the “heat-tray.” This reactor involves a supernatant gas flowing over a …
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Isotopic and reactor physics characterization of a gas-cooled, pebble-bed microreactor
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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Automated microreactor system for reaction development and online optimization of chemical processes
… investigations through the use of an automated microreactor system. Previous studies have illustrated the benefits of silicon microreactors for the study of chemical reactions. Such advantages include the small reactor volume and the continuous flow operations that enable microreactors to …
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Tissue-engineered liver microreactor as an in vitro surrogate assay for gene delivery
… assay based on the Tissue-Engineered Liver Microreactor, a culture system designed to facilitate the morphogenesis of three-dimensional tissue-like structures from isolated liver cells under continuous perfusion, maintain cell viability and hepatic functionality for long-term culture periods …
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Modeling UO₂ and UN Fuel Fission Gas Release Instances in BISON for Microreactor Applications
… concepts are currently under consideration for microreactor technology. To implement these fuel concepts, the performance of UO₂ and UN under microreactor irradiation conditions must be well understood. One key fuel performance phenomenon is fission gas release, where gaseous fission products …
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A microreactor system for high-pressure, multiphase homogeneous and heterogeneous catalyst measurements under continuous flow
… and cost of developing new catalyst systems. Microreactors enable the study of multiphase catalyst systems at pressures that were previously difficult to attain on the laboratory scale. The reduced length scales, characteristic of microchemical systems, provide additional benefits such as …
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Development of a continuous flow microreactor for chemical synthesis with in-line catalysis, heating and detection
The development of a micro fluidic flow organic synthetic system incorporating heterogeneous catalysis, novel heating regimes and in-line spectroscopic detection is described. The reactions used to model the flow synthesis include Suzuki and acetylation reactions using heterogeneous immobilised …
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Microreactor synthesis of labelled polyphenols : a route to antibacterial modes of action in important hospital pathogens
… synthesize deuterium labelled epicatechin in a microreactor, discover if theaflavin and epicatechin possess antibacterial action against important hospital pathogens and to determine if synergy exists between polyphenols and between polyphenol and current antibiotics. Other aims were to …
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