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Showing 1 to 20 of 37 for “"Oxy-fuel"”.
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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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Design of experiment analysis of high velocity oxy-fuel coating of hydroxyapatite
… and cost effectiveness the high velocity oxy-fuel (HVOF) thermal spray process has been widely adopted by many industries. Though there are different types of flame spraying processes, the HVOF thermal spray process utilises only powder as the coating material rather than wire or rod. …
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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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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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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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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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Effect of high velocity oxy-fuel (HVOF) coatings on fatigue behaviour of carbon steel
Nowadays, the application of high velocity oxy-fuel (HVOF) spraying is widely used in various industries. This is due to its ability to improve the wear, erosion and corrosion resistance of components. However, by taking consideration of mechanical properties and fatigue behaviour into cognisance, …
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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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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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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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Absorption of NOx and SO2 in the Flue Gas Treatment of an Oxy-fuel Power Plant, Report No. Nr.T2007-304
The oxy-fuel process is regarded as one of the promising CO2 capture technologies. In the process fuel is burned in an atmosphere of nearly pure oxygen and recycled flue gases so that a CO2-enriched flue gas is produced. The CO2-conditioning step that follows produces a stream of liquid carbon …
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Study into mechanical and electrochemical properties of coating deposits and welded-coated components using the HVOF (High Velocity Oxy-Fuel) process.
… and corrosion properties of High Velocity Oxy-Fuel (HVOF) thermal spray coatings of Inconel 625 powders on plain and welded surfaces of mild carbon and stainless steel (304). The research work carried out focused on coating adherence to base substrate, coating integrity and mechanical …
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Finite element simulation of creep behavior in enhanced refractory material for glass furnace
… in the glass melting process. Conversion to the oxy-fuel-fired furnace from the traditional air-fuel-fired furnace is one means to achieve greater output and energy efficiency, since the capital cost per ton of glass pulled is approximately 58% less for the oxy-fuel-fired furnace compared to the …
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Design and development of a powder mixing device used in the deposition of high velocity oxy-fuel (HVOF) thermal spray functionally graded coatings; Kabir Al Mamun
… of powders. However the HVOF (High Velocity Oxy-Fuel) process does not possess this feature. FGMs vary in composition and/or microstructure from one boundary (substrate) to another (top service surface), and innovative characteristics result from the gradient from metals to ceramics or …
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A comparative study on wear and corrosion behaviour of tungsten carbide-nickel (Wc-Ni) and tungsten carbide-cobalt (Wc-Co) high velocity oxy-fuel (HVOF) for carbon steel blade
… from time to time. Therefore, high velocity oxy-fuel (HVOF) thermal spray was introduced to protect machine components from wear and corrosion, to restore worn components and to improve the durability of the components. HVOF is one of the process of depositing a material layer over a base …
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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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Blue hydrogen co-generation as an energy vector for a sustainable future
… met. A blue hydrogen production process using oxy-fuel combustion, electricity co-generation and a closed loop system allowing virtually all the produced CO2 to be captured is evaluated. The resulting production process shows that hydrogen can be produced in Alberta meeting the sustainability …
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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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Charakterizace žárově stříkaného kovokeramického WC-CoCr povlaku na hořčíkové slitině AZ91
… byla provedena metodou HVOF (High Velocity Oxy-Fuel). Teoretická část je věnována hořčíkovým slitinám se zaměřením na slitinu AZ91. Dále je v teoretické části pojednáno o metodách žárového stříkání, kdy je pozornost věnována především kovokeramickým WC-CoCr povlakům připravených metodou …
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