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Showing 1 to 17 of 17 for “"Oxy-fuel combustion"”.
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Dynamic stability, blowoff, and flame characteristics of oxy-fuel combustion
Oxy-fuel combustion is a promising technology to implement carbon capture and sequestration for energy conversion to electricity in power plants that burn fossil fuels. In oxy-fuel combustion, air separation is used to burn fuel in oxygen to easily obtain a pure stream of carbon dioxide from the …
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Oxygen Transport Membrane Reactors for Oxy-Fuel Combustion and Carbon Capture Purposes
<p>This thesis investigates oxygen transport membrane reactors (OTMs) for the application of oxy-fuel combustion. This is done by evaluating the material properties and oxygen permeability of different OTM compositions subjected to a variety of operating conditions. The scope of this work consists …
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Techno-economic analysis of pressurized oxy-fuel combustion power cycle for CO₂ capture
… capture and sequestration. In this regard, oxy-fuel combustion is a promising new technology for capturing carbon dioxide in power generation systems utilizing hydrocarbon fuels. Combustion of a fuel in an environment of oxygen and recycled combustion gases yields flue gases consisting …
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Evaluating new Oxygen Transfer Materials for Air Separation, Oxy-Fuel Combustion and other Processes
… the pre-dominant commercial process to produce oxygen until it was superseded by the Hampson-Linde cycle in the early $20^{th}$ century. A chemical air separation loop is characterised by the cyclic reduction and oxidation of solid material serving as an oxygen carrier, which has the capacity to …
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Chemical kinetic modeling of oxy-fuel combustion of sour gas for enhanced oil recovery
Oxy-fuel combustion of sour gas, a mixture of natural gas (primarily methane (CH 4 )), carbon dioxide (CO 2 ), and hydrogen sulfide (H 2 S), could enable the utilization of large natural gas resources, especially when combined with enhanced oil recovery (EOR). Chemical kinetic modeling can help to …
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Design and implementation of Carbon Monoxide and Oxygen emissions measurement in swirl-stabilized oxy-fuel combustion
Oxy-fuel combustion in natural gas power generation is a technology of growing interest as it provides the most efficient means of carbon capture. Since all the emissions from these power plants are sequestered, there are stringent regulations on the proportions of oxidizable contents in the flue …
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Techno-economic analysis of sour gas oxy-fuel combustion power cycles for carbon capture and sequestration
… carbon dioxide emissions than traditional fossil fuel power plants. One of these unconventional fuels is sour gas. Sour gas consists of mainly methane, containing large concentrations of hydrogen sulfide and carbon dioxide. Over 30% of the world's natural gas reserves are considered sour. However …
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Enhanced controls for oxy-fuel-fired batch tank during glass working period
… in the glass industry has been the use of oxy-fuel combustion for melting glass. This new technology has not only increased the energy efficiency of the glass industry, but also has reduced its environmental impacts.;A model has been developed to take into account the effect of pulling the …
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Analysis and optimization of the Graz cycle : a coal fired power generation scheme with near-zero carbon dioxide emissions
… carbon dioxide into the atmosphere through the combustion of fossil fuels in power generation plants. With mounting evidence that this carbon dioxide is a leading cause of global warming and with energy demand exploding, it is time to seek out realistic power production methods that do not …
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Oxygen-Enhanced Combustion: Theory and Applications
In the broadest sense, oxygen-enhanced combustion: OEC) refers to the use of oxygen to improve combustion and/or process characteristics. When a stream of oxygen is available, a wide range of flame configurations is possible. This work considers two specific configurations of OEC and is divided …
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Computational fluid dynamics simulations of oxy-coal combustion for carbon capture at atmospheric and elevated pressures
Oxy-fuel combustion of solid fuels, often performed in a mixture of oxygen and wet or dry recycled carbon dioxide, has gained significant interest in the last two decades as one of the leading carbon capture technologies in power generation. The new combustion characteristics in a high-O₂ …
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ARRAYS OF MILLIMETER-SCALE RUBBER COMBUSTION ENGINES
… thermal motion design principles, I investigate combustion’s potential to be a power-dense mm-scale actuation modality. With my colleagues, we find that oxygen-enriched mixtures of hydrocarbons, when ignited in molded rubber chambers, quickly inflate thin elastomeric “pistons” outward, producing …
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Dynamics, stability and scaling of turbulent methane oxy-combustion
… strategy for reducing CO₂ emissions, with oxy-fuel combustion being one of the most promising technologies because of it is high efficiency and low cost. In oxy-combustion, CH₄/O₂/CO₂ mixtures burn at low temperatures (~~1700 K), high pressures (~~40 bar), where laminar burning velocities …
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Systems-level design of ion transport membrane oxy-combustion power plants
Oxy-fuel combustion, particularly using an integrated oxygen ion transport membrane (ITM), is a thermodynamically attractive concept that seeks to mitigate the penalties associated with CO 2 capture from power plants. Oxygen separation in an ITM system consists of many distinct physical processes, …
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Design of isostructural metal-imidazolate frameworks : application for gas storage
… type of CO2 capture to be performed (post-combustion capture, precombustion capture, or oxy-fuel combustion) and potentially even for the specific power plant in which the capture system is to be installed. For this reason, significant effort has been made in recent years in improving the …
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Numerical simulations of ion transport membrane oxy-fuel reactors for CO₂ capture applications
… performed to investigate the key features of oxygen permeation and hydrocarbon conversion in ion transport membrane (ITM) reactors. ITM reactors have been suggested as a novel technology to enable air separation and fuel conversion to take place simultaneously in a single unit. Possessing the …
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Studies in Advanced Oxy-combustion Technologies
… 87 percent of the total world energy came from combustion sources. While combustion is of critical significance, it poses serious issues. The rapid increase in energy consumption, primarily from increased fossil fuel use, has raised strong concerns over the current energy infrastructure, the …