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Showing 1 to 18 of 18 for “"combustion technology"”.
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Issues on Clean Diesel Combustion Technology Using Supercritical Fluids: Thermophysical Properties and Thermal Stability of Diesel Fuel
<p>The clean diesel combustion technology using supercritical fluids is aimed to both improve fuel economy and reduce harmful emissions. This novel process involves preparation, injection and combustion of supercritical fuel/diluents mixtures. Design and development of this new process require a …
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CFD Simulations of Chemical Looping Combustion in a Packed Bed and a Bubbling Bed Fuel Reactor
<p>Chemical-looping combustion (CLC) is a next generation combustion technology that has shown great promise in addressing the need for high-efficiency low-cost carbon capture from fossil fueled power plants to address the rising carbon emissions. Although there have been a number of experimental …
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Using H2 to supplement Diesel in Marine Applications
… initial background analysis of combustion technology is followed by a review of the state-of-the-art of the use of alternative fuels in Diesel engines.<br/>Experiments were undertaken on board of a vessel moored in Loch Beag on the Isle of Lewis, and it was found that it appears …
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Process modeling and analysis of CO₂ purification for oxy-coal combustion
Oxy-coal combustion technology has great potential as one of the major CO2 capture technologies for power generation from coal. The distinguishing feature of oxy-coal combustion is that the oxygen source is a high concentration oxygen stream and the product flue gas consists primarily of CO₂ and …
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Social Marginal Abatement Cost of Negative Emissions : Incorporating Externalities into the Private Costs of Carbon Dioxide Removal
… with Carbon Capture and Storage (BECCS) with combustion technology, Direct Air Capture and Storage (DACCS) with High-Temperature Solid-Sorbent technology, and Enhanced Weathering. The study found that each impact category had a considerably different impact on the SMACC results, with human …
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An approach of compartmentalisation in development of non-isothermal chemical reactor network models for the high speed simulation of iso-octane combustion
Every aspect of the modern day life relies on combustion, be it in motor vehicles, industrial equipment or power generation. The downside to the extensive use of combustion technology is the environmental pollution produced by the process. The lack of fast solving models to simulate combustion …
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Simulation Study on Lifted Hydrogen and Methane Jet Flames in Hot Vitiated Coflow
Combustion of fossil fuels is the most important energy source today. Burning fossil fuel is however expensive and bad for the enviroment. Improving the combustion technology to reduce fuel consumption, and to be able to burn renewable fuels is therefore of great importance. Analysing the flames in …
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Developing an energy efficient steam reforming process to produce hydrogen from sulfur-containing fuels
… efficiency and lower emissions than conventional combustion technology. In order to realize the benefits of a hydrogen fuel cell an efficient method to produce hydrogen is needed. Currently, over 90% of hydrogen is produced from the steam reforming of natural gas. However, for many applications …
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Physical aspects and modelling of turbulent MILD combustion
Moderate or Intense Low-oxygen Dilution (MILD) combustion is one of combustion technologies which can improve efficiency and reduce emissions simultaneously. This combustion type is characterised by the highly preheated reactant temperature and the relatively small temperature rise during …
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Physical Insights of Non-Premixed MILD Combustion using DNS
Moderate or Intense Low-oxygen Dilution (MILD) combustion is a combustion technology that can simultaneously improve the energy efficiency and reduce the pollutant emissions of combustion devices. It is characterised by highly preheated reactants and a small temperature rise during combustion due …
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Evaluating dry woodlands degradation and on-farm tee management in kenyan drylands
… charcoal recovery; 5) promotion of efficient combustion technology and cooking practices to reduce demand side pressure, and; 6) encourage fuel switching to other fuels like LPG and electricity.
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Computational Fluid Dynamics Modeling and Simulations of Fluidized Bed Reactors for Chemical Looping Combustion
<p>Chemical looping combustion (CLC) is a next generation combustion technology that shows great promise as a solution for the need of high-efficiency low-cost carbon capture from fossil fueled power plants. To realize this technology on an industrial scale, the development of high-fidelity …
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Turbulent partially premixed combustion: DNS analysis and RANS simulation
… the search for cleaner and more efficient combustion devices, which remain the primary means of power generation and propulsion for all kinds of transport. Fuel-lean premixed combustion technology has been identified to be a promising approach, despite many difficulties involve, notably …
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Study of Lean Blowout Limits and Effects of Near Blowout Oscillations on Flow Field and Heat Transfer on Gas Turbine Combustor
… turbine combustors implement lean premixed (LPM) combustion system to reduce the formation of NOx pollutants. LPM technology has advanced to have the ability to produce extremely low level of NOx emissions. The current focus of research on LPM is focused on reducing the NOx emission to much …
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Experimental and numerical investigation of flameless pulverised coal combustion
… to investigate the applicability of flameless combustion technology principles to pulverised coal combustion. Lab-scale experiments showed, that it is highly beneficial in terms of NOx reduction to use N2 as coal carrier instead of air. The finding has been supported by OH* chemiluminescence …
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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 …
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The Investigation of Aspects of Chemical Looping Combustion in Fluidised Beds
Chemical looping combustion (CLC) is a promising fossil fuel combustion technology, which is able to separate CO2 from the flue gases without a large consumption of energy. In this thesis, the study was extended to look at the use of chemical looping materials within traditional fluidised bed …
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Quantitative measurements of temperature using laser-induced thermal grating spectroscopy in reacting and non-reacting flows
… the spatial distribution of temperature in combustion environments. In addition, the parameters that in influence the local temperature rise due to LITGS were also investigated in continuous vapour flows of acetone/air and toluene/air mixtures at atmospheric conditions. Acetone and toluene …