Filters: Department: "Chemical Engineering" School Or College: "College of Engineering" Collection: "ir_uspace"
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |
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Eddings, Eric G. | Joint NSF-NSFC Workshop on Combustion Related to Sustainable Energy | A workshop on Combustion Related to Sustainable Energy was held in Hangzhou, China on March 10-12, 2014. The workshop was jointly sponsored by the U.S. National Science Foundation (NSF) and by the National Science Foundation of China (NSFC). The purpose of the workshop was to bring together a limite... | Combustion, sustainable energy, research needs, climate change, renewable fuel, efficiency, Workshop China | 2016 |
| 2 |
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Lighty, Joann | The role of open innovation in development of futuristic technologies for carbon capture in coal-fired power plants: an academic perspective | Coal is an important fossil fuel resource for electricity generation which also contributes to significant CO2 emissions. The process of capturing carbon dioxide for utilization and sequestration is an important area of research in this domain. Academia-industry collaborations are playing a signific... | 2012-01-01 | |
| 3 |
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Rashid, Khalid; Powell, Kody | Dynamic simulation, control, and design of a novel solar thermal hybrid power plant | Solar power is among the promising technologies leading towards cleaner fuel. However, there are still technological challenges regarding the reliability of power generation due to its intermittency. This work demonstrates the synergies that exist in integrated hybrid systems, where a dispatchable f... | Solar energy--Research; Solar thermal energy--Research; Solar power plants--Research | 2017 |
| 4 |
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Pershing, David W. | Influence of coal composition on the fate of volatile and char nitrogen during combustion | Fifty coals from North America, Europe, Asia, South Africa and Australia were burned in a 21 kW, refractory-lined tunnel furnace to determine the influence of coal properties on the fate of volatile and char nitrogen. Excess air fuel NO emissions (as determined by combustion in Ar/02/C02) ranged fro... | Coal composition; Char nitrogen; Volatile nitrogen; NO emissions | 1982 |
| 5 |
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Pershing, David W.; Slaughter, David Michael | Parameters influencing the evolution and oxidation of sulfur in suspension phase coal combustion | Stoker coal-fired boiler furnaces are significant in terms of coal consumption and environmental impact; however, they have received relatively little research attention. This paper describes the results of a two-year study on the formation of sulfur oxides in the suspension phase of a coal-fired s... | Stoker coal-fired furnaces | 1983 |
| 6 |
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Pershing, David W. | Influence of fuel composition and flame temperature on the formation of thermal and fuel NOx in residual oil flames | A 900 kw model package boiler and a 20 kw laboratory tunnel furnace were used to study fuel and thermal NO, formation during heavy oil combustion. Package boiler results indicated that atomizer design, spray/ flow field interactions, and fuel composition were significant, dependent parameters. These... | Residual oil flames | 1979 |
| 7 |
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Pershing, David W. | Biomass combustion: relationship between pollutant formation and fuel composition | A 65-kW refractory-walled reactor was used to study biomass combustion under conditions typical of the suspension-burning phase in a spreader-stoker-fired boiler. Isothermal combustion data and nitric oxide (NO) emission rates were obtained as a function of temperature, local oxygen concentration, ... | Combustion; Emissions; Energy; Environmental control; Fuels; Pyrolysis; Biomass fuel; Particulates | 1989 |
| 8 |
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Pershing, David W. | Formation and control of NO emissions from coal-fired spreader-stoker boilers | Stoker coal-fired furnaces are significant in terms of coal consumption and environmental impact; however, they have received little research attention. This paper describes the results of a study on the formation and control of nitrogen oxides in coal-fired spreader-stoker systems. Three scales of... | Stoker coal-fired furnaces | 1983 |
| 9 |
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McLennan, John | Final Report Geothermal Battery Energy Storage | Solar and wind power are being introduced into electric grids to supplement and replace conventional electricity production. The deployment of utility-scale storage has not kept pace to overcome the intermittent nature of solar and to a lesser extent wind. Large-scale energy storage is cur... | 2020-06 | |
| 10 |
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Pershing, David W. | Control of NOx emissions | NITROGEN OXIDES (NOX) are produced in combustion from molecular nitrogen (thermal NOx) or from oxidation of nitrogen contained in the fuel (fuel NOx). Production of NOx in a turbulent diffusion flame is largely dependent upon fuel composition and fuel/air contacting, which for liquid fuels is determ... | Staged heat release; Tunnel furnace; Boiler simulator; Staged combustion | 1980 |
| 11 |
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Pershing, David W. | Bench and pilot scale process evaluation of reburning for in-furnace NOx reduction | This paper describes a combined experimental and theoretical study which was undertaken to quantify the impact of fuel and process parameters on reburning effectiveness and provide the scaling information required for commercial application of reburning under highly varied industrial conditions. Ini... | Reburning; Nitrogen oxides reduction; Staged fuel injection | 1986 |
| 12 |
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Pershing, David W. | Mechanisms of NOx formation and control: alternative and petroleum-derived liquid fuels | Petroleum-, coal- and shale-derived liquid fuels were burned in a downfired tunnel furnace to assess the impact of fuel properties on the formation and control of NOx emissions. A nitrogen-free oxidant mixture (Ar, C02 , 02) was used to isolate fuel NOx formation. Under excess air conditions fuel N... | Exhaust emissions; Alternative fuels; Petroleum-derived liquid fuels | 1981 |
| 13 |
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Pershing, David W.; Wendt, Jost O. L. | Pulverized coal combustion: NOx formation mechanisms under fuel rich and staged combustion conditions | A 2 Kg/h pulverized fuel one dimensional flame combustor was used to determine time resolved NO profiles under fuel rich and staged combustion conditions. Seven solid fuels, including two coal chars, were investigated. Results show that at all fuel rich conditions NO is formed rapidly and then is ... | Flame; Composition; Reaction | 1979 |
| 14 |
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Sarofim, Adel F. | Simulation of soot formation using particle dynamics with one dimensional nucleation mode | Two soot formation models using particle dynamics with one-dimensional nucleation mode directly coupled with gas phase chemistry are tested on three ethylene and three methane laminar premixed flames. These models demonstrate strength in the prediction of concentration profiles of major combustion p... | Soot formation models; Particle dynamics; One dimensional nucleation mode; Combustion chemistry | 2004 |
| 15 |
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Lighty, Joann; Sarofim, Adel F. | Carbon dioxide effects on metal vaporization during coal combustion | Coal combustion products may take one of two forms. Residual ash (> 1 micron) is formed by particle shrinkage and breaking during combustion. Some material will vaporize and later recondense. During recondensation, these molecules have a high affinity for submicron particles because of the large sur... | Coal combustion products; Metal vaporization; Carbon dioxide; Residual ash | 2001 |
| 16 |
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Smith, Philip J. | State space sensitivity to a prescribed probability density function shape in coal combustion systems: joint β-PDF versus clipped Gaussian PDF | The turbulent transport of three coal off-gas mixture fractions is coupled to a prescribed joint //-probability- density-function (//-PDF) mixing model. This physical transport and subgrid joint //-PDF mixing model is used to explore the incorporation of coal off-gas compositional disparities betwe... | Off-gas stream; β-PDF; Char oxidation | 2000 |
| 17 |
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Sarofim, Adel F.; Eddings, Eric G. | Muiltifunctional fuel additives for reduced jet particlate emissions | Using Government drawings, specifications, or other data included in this document for any purpose other than Government procurement does not in any way obligate the U.S. Government. The fact that the Government formulated or supplied the drawings, specifications, or other data does not license the ... | 2006 | |
| 18 |
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Lighty, Joann; Sarofim, Adel F.; Eddings, Eric G. | Modeling the coagulation of charged particles | One important mechanism in the growth of soot particles is to understand the role of particle charge in the coagulation of the particles. A previously developed model has been extended to include the coagulation of charged particles. The model includes neutral particles and charged particles (up to ... | Charged particles; Flame ionization; Modeling | 2004 |
| 19 |
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Pershing, David W. | Control of NOx and particulate emissions from spreader-stokers fired with hogged wood | The formation and emission of nitrogen oxides and particulate carry-over were studied from spreader-stoker combustion of hogged Douglas-fir, with a focus on optimizing the combustion conditions in each of the two distinct combustion zones, the bed phase and the suspension phase local oxygen availabi... | Chemical analysis; Combustion; Emission; Engineering; Environmental control; Fuels; Nitrogen compounds; Particulates; NOx; Hogged wood | 1987 |
| 20 |
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Eddings, Eric G.; Sarofim, Adel F. | Experimental study of burning rate in jet-fuel pool fires | Experiments were carried out in a 30 cm diameter pool fire, for both transient and steady-state conditions, utilizing jet fuel, Norpar-15, and a surrogate mixture of hydrocarbons that simulates jet-fuel behavior in a pool fire. Steady state pool fire tests match previous results well. The transient ... | Pool fires; Jet propulsion fuel; Norpar-15 | 2004 |
| 21 |
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McLennan, John | Large-scale subsurface seasonal heat storage for future value | I too extend my welcome. And, I extend thanks to the NSF for the support of this research at the Univ. of Utah. The concept of storing heat in the ground is certainly not new. Many, many cases have investigated heat to be stored underground. Getting the heat underground is somewhat of a problem, but... | 2020-05-19 | |
| 22 |
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Pershing, David W.; Wendt, Jost O. L. | Investigation of first- and second-stage variables on control of NOx emissions using staged combustion in a pulverized coal wall-fired furnace | Recent tests on an EPA 1- to 1.5 x 106 Btu/hr pilot-scale pulverized coal furnace show that N0X emissions of 100 ppm to 150 ppm (zero percent 02) are achievable with the use of two-stage combustion. Comparable N0X emission levels were obtained with three different coal types fired in either the sing... | NOx; Carbon monoxide; Emissions | 1979 |
| 23 |
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Pershing, David W.; Wendt, Jost O. L. | Pulverized coal combustion: the influence of flame temperature and coal composition on thermal and fuel NOx | A laboratory combustor was used to investigate the factors that influence the conversion of fuel nitrogen in coal during coal combustion. Fuel NO was isolated by experimentation utilizing Argon / Oxygen / Carbon Dioxide mixtures as the oxidant, and care was taken to compare cases with air at matche... | Fuel nitrogen; Flame temperature; Coal composition | 1977 |
| 24 |
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Ring, Terry Arthur | Validation of energy moments from the one-dimensional energy dependent neutron diffusion equation, MCNP5 and Attila-7.1.0 with the GODIVA experiment | Normalized neutron energy moments (moments) from the one-dimensional energy dependent neutron diffusion equation (EDNDE), Monte Carlo N Particle 5 version 1.40 (MCNP5) and Attila-7.1.0-beta version (Attila) are validated with the GODIVA experiment (GODIVA). Energy moments 0-5 for all three methods a... | 2012-01-01 | |
| 25 |
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Veranth, John M.; Pershing, David W.; Sarofim, Adel F. | Sources of unburned carbon in the fly ash produced from low-NOx pulverized coal combustion | The unburned carbon in the fly ash produced from low-NOx pulverized coal combustion is shown to consist of a mixture of soot and coal char. The soot was identified by the presence of chains or aggregates of 10-50-nm-diameter primary particles in electron microscope images of both laboratory sample... | Unburned carbon; Char | 1998 |