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.
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Showing 1 to 20 of 29 for “"Electric Arc Furnace"”.
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Pyrohydrolytic de-halogenation of electric arc furnace dusts
Includes bibliographical references (pages 200-204).
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Mathematical modeling of D.C. electric arc furnace operations
A fundamental study of the Direct Current Electric Arc Furnace (DC-EAF) for steel-making has been carried out through the development of a rigorous mathematical model. The mathematical representation involves the simultaneous solution of Maxwell's equations for the electromagnetic fields, and the …
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Modelling and state-estimation of steelmaking in an electric arc furnace.
… control of the steelmaking process in the electric arc furnace are presented and progress made in applying computer control is reviewed. The development of a mathematical model of the refining process is shown to be restricted by the complex metallurgical nature of the process and the …
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The development of a construction material using electric arc furnace dust
… further. This solution was selected by Roanoke Electric Steel as a possible way to dispose of electric arc furnace dust, a by-product which contains a variety of heavy metals which are classified as hazardous by the United States Environmental Protection Agency. In this study, the furnace dust …
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Economic evaluation and design of an electric arc furnace controller based on economic objectives
Please read the abstract in the section, 00front of this document
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Design of a primary off-gas scrubber for a ferro-manganese electric arc furnace process
An electric arc furnace makes use of electrical energy in the form of an arc to heat charged material. In the ferromanganese smelting process the ferric oxide (Fe2O3) and manganese oxide (MnO2) are reduced with coke. The basic reaction that takes place is described in the following equation Fe203 + …
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Treatment of inorganic hazardous waste constituents found in electric arc furnace dust by solidification/stabilization
… were evaluated for use as a treatment method for electric arc furnace dust. Specific objectives were (1) to develop a solidified material capable of meeting EPA requirements for heavy metal leaching, and (2) to develop a solidified material that could be used for construction. Results from the …
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Assessing Opportunities to Reduce Carbon Dioxide Emissions from Electric Arc Furnace Steelmaking in the United States
… the energy transition. This thesis focuses on Electric Arc Furnace (EAF) steelmaking, which accounts for roughly 70% of steel production in the United States. Decarbonization levers for EAF producers are diverse—encompassing energy efficiency (EE) measures, fuel switching, material input …
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Identification of The Steel Decarbonization Options for Different Regions
… for substantial decarbonization. This research endeavors to identify such pathways through comprehensive modeling. We evaluate the impact of technology replacement, fuel switching, and carbon capture and storage (CCS) on energy demand, costs, and emissions in crude steel production. The …
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Compensador para cargas de comportamento aleatório baseado em Flywheel
… of a compensator to the effects produced by an electric arc furnace. A flywheel composed by a squirrel cage induction machine is proposed to make the active power smoothing possible. The applicability of the dual inverter topology to the flywheel control is studied. The compensation strategy and …
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Methodological analysis of process technology in Engineering projects implementation
… consisted of an increase in capacity of the electric arc furnace in order to improve the availability of liquid steel to the subsequent processes in the Melt Shop. The evaluation will be performed according to the Approach to Developing Process Technology Strategy (Beckman, S.L. and …
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Modelling and analysis of electric arc loads using harmonic domain techniques
… has been reported that as much as 12% of global electricity production goes into producing artificial light using arc discharge lamps and that global annual production of these lamps may be as much as 1.2 billion units. In the liquid steel production industry, one metric tone of steel demands, on …
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To develop a new mineral carbonation process that have a high efficiency in CO2 absorption into industry slag using low energy mechanical milling
… fossil fuels has caused serious global warming. Electricity generation, tranportation, and industrial waste are the main sectors indentified to contribute to the emission of CO2 in Malaysia. In dealing with this issue, the absorption of CO2 into industrial waste was experimentally studied by the …
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Performance of asphalt mixtures containing steel slag aggregate and synthetic fibers
… the granite aggregates were replaced by electric arc furnace (EAF) steel slag aggregate with different proportions to identify the suitable substitution in terms of superior performance. Subsequently, the asphalt mixtures incorporated the appropriate proportion of the steel slag …
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Numerical simulation of fumes evacuation in steelmaking plants
… to the security of the operators around the furnace and help to gain the emission levels stated in the environmental regulations, furthermore play a major role in the mass and heat balance of the factory. The aim of the dissertation is to study both primary and secondary emission capture …
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Unlocking the Potential of Hydrogen in Intermittent Electricity Systems: A Global Assessment of Levelized Cost of Hydrogen and Low Carbon Industrial Hub Profitability
… cost of hydrogen under different levels of grid electricity volatility, and construct a regional hour-by-hour prioritized dispatch model to simulate a low-carbon industrial hub primarily powered by wind and solar supported by storage and firming. The results demonstrate that with the regions …
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The analysis of acoustic noise in a submerged arc furnace
… with Acoustic Noise Analysis in a submerged Arc Furnace. Operators and Metallurgists believe that the acoustic noise coming from the furnace conveys information as to the operating conditions of the furnace. This submerged arc furnace reduces ferrochrome ore to the metal. A carefully made-up …
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Micro-analytical methodologies for the characterization of airborne inorganic pollutants collected on unconventional substrates
… in the emissions of atmospheric pollutants by an electric arc furnace (EAF) steelmaking plant located in a test site. The benefits of combining the single particle and bulk analytical techniques emerged especially for the discrimination of the emissions from different sources.
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