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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 86 for “"Furnaces"”.
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Electrode length measurement in electric arc furnaces
… measurement of electrode length in electric arc furnaces will result in decreased maintenance time, and improved plant productivity. This thesis describes the development of a microwave-based Soderberg electrode length-measurement system. Various methods of electrode-length measurement were …
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Heat balances of furnaces using insulating refractories
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Metallurgy, 1940.
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An air-preheating system for blast furnaces
Thesis: M.S., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1984
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Modelling of transient heat transfer in annealing furnaces
… show the following characteristics of annealing furnaces, and to suggest further developments which would lead to significant savings: - The location of the limiting temperature in a coil is nearer to the hollow core than to the outer periphery. - Thermal expansion of the steel tends to open the …
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Evaluation of continuous batch processing for vertical diffusion furnaces
Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management; and, Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1998.
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An analysis of the electrical circuit of submerged-arc furnaces
The measurement of the electrical variables of a submerged-arc furnace is difficult owing to errors in the measurement of electrode-to-bath voltages and the difficulty in maintaining measurement connections to the hot, harsh environment of a furnace. A system is proposed which provides an accurate, …
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A zonal model for radiation heat transfer in coal-fired boiler furnaces
Problems associated with boilers are a major contributor to load losses in coal-fired power plants. The boiler furnace exit temperature is a key indicator of the combustion and heat transfer processes taking place and has a profound impact on the operation of the heat exchangers downstream of the …
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An Improved Mathematical Model to Simulate the Stock in Pulse Fired Reheating Furnaces
… to simulate the temperature performance of furnaces.<br/><br/>The zone method can provide an accurate calculation of the radiation exchanges, which are the main mode of heat transfer in the furnace. The zone method solves the radiant heat exchanges in the enclosure by splitting the furnace …
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Development of Improved Mathematical Models for the Design and Control of Gas-Fired Furnaces
… to evaluate the performance of a variety of furnaces and other high temperature systems. Generally in these systems the dominant mode of heat transfer is radiation so that prediction of the thermal performance requires accurate calculation of the radiative transfer. This can be achieved by …
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CFD study of the combustion of innovative fuels in blast furnaces for sustainable iron making
… these innovative fuels in ironmaking blast furnaces (BFs). However, the in-furnace phenomena of innovative fuels injection are not clear yet. In this thesis, several computational fluid dynamics (CFD) models are developed and applied to simulate the combustion of innovative fuels under real …
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THE STUDY AND CHARACTERIZATION OF A NEW PROCEDURE FOR APPLYING CARBIDE COATINGS TO GRAPHITE FURNACES USED IN ATOMIC ABSORPTION SPECTROSCOPY
… method for applying carbide coatings to graphite furnaces used in atomic absorption spectroscopy. The proposed method consists of impregnating graphite furnaces, under reduced pressure, with a liquid metal chloride. After soaking in water to hydrolyze the metal chloride to metal oxide, the furnace …
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Application of the zone method of radiation analysis to simulation of the non-steady state operation of metal reheating furnaces
… improve application of the zone method to furnaces. Hence, full transient conditions were simulated for different zone models, which varied in complexity from a single gas zone model to a full 3D multi-zone version. The exchange factors required in the zone method were calculated by a …
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Preserving the ethos of industry at the Carrie furnaces: the redevelopment of an industrial heritage site and the interpretation of manufacturing culture
… growth imperatives, explores how the Carrie Furnaces could be made to cultivate public memory of industrialism, and examines competing visions of significance, authenticity, and interpretation of heritage sites, particularly in the context of deindustrialization. Four cases studies of …
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An investigation into the design of a self adaptive digital temperature controller for industrial furnace control
… degree of temperature control in a range of furnaces which are normally used for the heat treatment of metals. In this investigation the author has limited his work to two furnaces, a medium sized furnace and a small sized furnace. It is argued that the methods employed in controlling these …
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Processing factors contributing to growth and decline in the steel industry
… A different mix of refining and melting furnaces were used, with increasing use being made of basic oxygen and electric arc furnaces as compared to the basic open hearth. Additionally, continuous casting began to replace ingot casting. Iron ore price, scrap steel price and electricity …
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The effect of acid soluble copper concentrates on the operations of the flash smelting and slag cleaning furnaces at Nchanga smelter of Konkola copper mines plc
… through a two stage electric slag cleaning furnaces (ESCF) to produce blister copper of 98.25% Cu and a cobalt recoverable slag containing 3 – 5% Cu and 0.78% Co which is processed in the cobalt recovery furnace (CRF). The smelting units are designed to smelt concentrates containing a …
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The effect of acid soluble copper concentrates on the operations of the flash smelting and slag cleaning furnaces at Nchanga smelter of Konkola copper mines plc
… through a two stage electric slag cleaning furnaces (ESCF) to produce blister copper of 98.25% Cu and a cobalt recoverable slag containing 3 – 5% Cu and 0.78% Co which is processed in the cobalt recovery furnace (CRF). The smelting units are designed to smelt concentrates containing a …
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A study of differential thermal analysis utilizing statistical experimental design
… of the experiment. The effects of two different furnaces, three rates of heating, and three densities of the samples were analyzed to determine the area under the endothermic reaction peaks as measured by Cr-Al differential thermocouples. It was found that densities and rates both yielded highly …
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