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Filters: Publication Type: "journal article" Research Institute: "Institute for Clean and Secure Energy (ICSE)" Collection: "ir_eua"
| Title | Date | Subject | Description | ||
|---|---|---|---|---|---|
| 26 |
 |
On trimodal particle size distributions in fly ash from pulverized-coal combustion | 2002 | trimordal particle size distributions; fly ash; pulverized-coal combustion; fine particles; PM | Combustion-generated fine particles, defined as those with aerodynamic diameters less than 2.5 lm, have come under increased regulatory scrutiny because of suspected links to adverse human health effects. Whereas classical theories regarding coal combustion suggest that mechanisms of ash vaporizatio... |
| 27 |
 |
Modeling the rich combustion of aliphatic hydrocarbons | 2000 | rich combustion; aliphatic hydrocarbons; kinetic mechanism; benzene formation; high-molecular-mass aromatic compounds | A new kinetic mechanism has been developed for the formation of benzene and high-molecular-mass aromatic compounds in rich flames of aliphatic hydrocarbons. The kinetic scheme emphasizes both the role of resonantly stabilized radicals in the growth of aromatics and the standard acetylene addition me... |
| 28 |
 |
Effect of ethanol on the chemical structure of the soot extractable material of an ethylene inverse diffusion flame | 2007 | Soot extractable material; Ethylene inversion diffusion flame; Aromatic fused rings; Neat flame; Chloroform-extractable material; Aliphatic component; Incomplete combustion; Fossil fuels; Ethanol; Soot; Emission; Soot particles; Polyaromatic hydrocarbons; Potential carcinogen | The effect of fuel-side ethanol addition on the chemical structure of the soot extractable material generated in an ethylene inverse diffusion flame was evaluated by means of average structural parameters. The results indicate that the ethanol effect on the aromatic components was more pronounced, w... |
| 29 |
 |
State space sensitivity to a prescribed probability density function shape in coal combustion system: Joint B-PDF versus clipped Gaussian PDF | 2000 | space sensitivity; coal combustion; b-PDF mixing model; three coal-off gas; pulverized-coal research furnace | The turbulent transport of three coal off-gas mixture fractions is coupled to a prescribed joint b-probability- density-function (b-PDF) mixing model. This physical transport and subgrid joint b-PDF mixing model is used to explore the incorporation of coal off-gas compositional disparities between t... |
| 30 |
 |
Modeling the vaporization of ash constituents in a coal-fired boiler | 2000 | vaporization of ash constituents; coal-fired boiler; minimizing harmful emissions; vaporization | Emissions of fine particulate and trace toxic metals are being subjected to increasing regulation. This paper addresses how the emission of these compounds can be influenced by changes in combustion conditions, particularly those selected to minimize NOx emissions. The vaporization and condensation ... |
| 31 |
 |
Relationships between composition and pulmonary toxicity of prototype particles from coal combustion and pyrolysis | 2009 | toxicity; prototype particles; coal combustion; pyrolysis; health effects; coal combustion fly-ash particles | The hypothesis that health effects associated with coal combustion fly-ash particles are exacerbated by the simultaneous presence of iron and soot was tested through two sets of experiments. The first set created prototype particles from complete and partial combustion, or oxygen free pyrolysis of a... |
| 32 |
 |
Quantum mechanical study of molecular weight growth process by combination of aromatic molecules | 2001 | molecular weight growth; aromatic molecules; Quantum mechanics; Quantum mechanical study; aromatic moietes. | Formation pathways for high-molecular-mass compound growth are presented, showing why reactions between aromatic moieties are needed to explain recent experimental findings. These reactions are then analyzed by using quantum mechanical density functional methods. A sequence of chemical reactions bet... |
| 33 |
 |
Size-range analysis of diesel soot with ultra-small angle X-ray scattering | 2005 | desiel soot; ultra-small angle X-ray scattering; Carbonaceous soot; diesel fuel; soot powders; soot | Carbonaceous soot produced in a small diesel engine test facility was investigated with ultra-small-angle X-ray scattering. Three soot samples produced using a reference diesel fuel and the reference fuel plus two oxygenate additives were investigated. The presence of objects at three typical size r... |
| 34 |
 |
Reduction of nitric oxide on the char surface at pulverized combustion conditions | 2002 | reduction of nitric oxide; nitric oxide; pulverized combustion; char formation; char surface | This study presents an experimental evaluation of the rate of nitric oxide reduction on the char surface. It addresses the claim that the rate for the destruction of nitric oxide on the char surface has been underpredicted due to char deactivation in the process of char formation. Experiments conduc... |