Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 89 for “"coal combustion"”.
-
Ash vaporization under simulated pulverized coal combustion conditions
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1982.
-
Multi-variable optimization of pressurized oxy-coal combustion
… on a 300 MWe wet-recycling pressurized oxy-coal combustion process with carbon capture and sequestration. The model accounts for realistic component behavior such as heat losses, steam leaks, pressure drops, cycle irreversibilities, and other technological and economical considerations. The …
-
Fate of fuel nitrogen during pulverized coal combustion.
Thesis. 1978. Sc.D.--Massachusetts Institute of Technology. Dept. of Chemical Engineering.
-
PREDICTING THE FORMATION OF CONDENSATION ASH FROM COAL COMBUSTION
… nature of condensation ash formed from direct combustion of coal. Three coal-fire combustors, a cyclone-fired (CF) boiler, a pulverized-fuel (PF) and a drop tube (DT) furnace were considered.</p><p>Predictions were based on the hypothesis that condensation ash is formed through two consecutive …
-
Modeling Arsenic, Antimony, And Selenium Partitioning During Coal Combustion
… not the only form of pollution associated with coal. Several trace elements liberated from the coal matrix during combustion represent additional pollutants that must be understood and controlled. These elements have a variety of ways in which they are associated within coal, which impacts how …
-
Remediation of Abandoned Mines Using Coal Combustion By-products
… occurs when pyrite that is present in abandoned coal mines comes in contact with oxygen and water, forming acidic water rich in dissolved metals. Grout injection into mines is a popular technique that provides a permanent solution to control AMD. The main objective of this study was to …
-
Transformation of iron and trace elements during coal combustion
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1998.
-
Fine Particle and Mercury Formation and Control during Coal Combustion
<p>Pulverized coal combustion is widely used worldwide for the production of electricity. However, it is one of the primary emission sources of air pollutants, including particulate matter (fly ash) and mercury (Hg), into the atmosphere. This dissertation investigated three aspects of pollutant …
-
Experimental investigation of coal combustion in coal-laden methane jets
Combustion characteristics of methane jets laden with pulverized coal were studied by using a vertically oriented solid particle injector that entrained pulverized coal particles using the Venturi effect. The dependence of entrainment rate on the size of coal particles was studied as a function of …
-
Oxy-Coal Combustion: Submicrometer Particle Formation, Mercury Speciation, And Their Capture
… is the issue of great importance at the present. Coal, the cheapest and the most abundant reserve fossil fuel, is currently one of the most widely used energy source globally and will continue to be in the foreseeable future. The use of coal has also posed many world-wide environmental challenges, …
-
Biogeochemical Transformations of Trace Element Pollutants During Coal Combustion Product Disposal
<p>Coal fired power plants generate approximately 45% of the electricity produced in the United States every year, and each year, over 100 million tons of coal ash are produced as a by-product of electricity generation. Coal ash is a solid waste made up principally of bottom ash, fly ash, and flue …
-
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 …
-
Mechanisms of ash particle formation and growth during pulverized coal combustion
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1987.
-
The formation of fouling and slagging deposits in pulverized coal combustion
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1988.
-
Formation of inorganic submicron particles under simulated pulverized coal combustion conditions
Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1982.
-
Coal Combustion Waste Disposal Facility Design: Electric Power Cooperative Selby, South Dakota
… (REC) proposes to build a 700 megawatt (MW) coal fired base load electrical generating station in north-central South Dakota. The plant would consist of a supercritical pulverized coal boiler and a steam turbine generator. Solid wastes generated through the operation of the boiler and …
-
Coal Combustion Residuals in Receiving Lake Ecosystems: Trophic Transfer, Toxicity, and Tracers
… fields in the context of freshwater pollution by coal-fired power plant (CFPP) effluents, which contribute to the largest point source of environmental pollution in the United States and comprise a substantial threat to receiving ecosystems. CFPPs discharge the by-products of coal combustion, …
-
Submicron ash formation and interaction with sulfur oxides during pulverized coal combustion
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1991.
-
A Study of On-line Analysis of Hydrogen Chloride Evolution During Coal Combustion
… the evolution of hydrogen chloride from coal during combustion as a function of the chlorine content and mesh size of the coal. It was determined that combined TG-FTIR and TG-MS systems offer the user an efficient means to investigate the mechanism of hydrogen chloride evolution from coal …
-
Characterizing and modeling the hydrologic properties of coal combustion by-products in landfills
Coal combustion byproducts (CCBs) disposed of in unlined landfills can impact the quality of adjacent water resources. In previous studies, CCBs have been found to leach toxic heavy metals such as arsenic, mercury, and lead into groundwater. CCBs include fly ash, bottom ash, and flue gas …
Page 1 of 5