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 17 of 17 for “"Electrical Heating"”.
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Design and development of a microwave-enhanced diesel soot oxidation system
… throttling, fuel catalysis, filter catalysis, electrical heating, and burner systems. One very unique regeneration method incorporates the use of microwave energy to selectively heat the particulate matter within diesel PM filters. In the research presented in this work, a microwave …
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Development of a low-cost, rapid-cycle hot embossing system for microscale parts
… the use of new ceramic substrate heaters for electrical heating, use of a moveable heat sink to minimize heat load during the heating cycle, and the careful design of the thermal elements to minimize the heating and cooling cycle times. The capital cost and the cost per part produced with this …
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Development of a constant-volume combustion apparatus for fuels research
… a pre-charge combustion event as opposed to electrical heating. The combustion of a lean mixture of flammable gas resulted in the desired conditions being developed rapidly, avoiding the material strength limitations of sustained electrical heating. The CVCC has a cylindrically shaped …
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An analytical study of dynamic response and nonequivalence of an absolute active cavity radiometer operating at cryogenic temperatures
… diffuse-specular thermal radiation and electrical heat generation. The analysis of diffuse-specular radiation is made possible by the use of the Monte Carlo method. The model is used to analyze both the steady-state and transient instrument response for operating temperatures of 5, 70 …
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The structural response of steel I-section members subjected to elevated temperature gradients across the section
… heated using high powered, ceramic insulated, electrical heating elements at temperatures up to 1000°C. The experiments have been conducted on: a non-loaded, simply supported beam; a design-loaded, simply supported beam; a non-loaded 2-span beam on simple supports; and design-loaded, pin-ended …
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Steel, steel/concrete composite and reinforced concrete beams and columns exposed to fire
… designed and manufactured at City University. Electrical heating elements were used to heat the specimens. To obtain a comprehensive temperature profile of the test columns several thermocouples were used. Deflection measurements were made using displacement transducers placed at different …
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The Cascade Control of a Partially Simulated Continuous Stirred Tank Reactor
… of the required exothermic heat of reaction from electrical heating elements. The corrective signal from the simulated control action is also transmitted to the real control valve to regulate the coolant flow. The transmission of these signal sand their conversion to the required form is …
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More Electric Systems Architecture Effect on Business Jet Performance
… for cabin pressurization and wing de-icing with electrically driven compressors and electrical heating mats, respectively.</p> <p>It is ensured that the new architecture possesses the same or higher level of safety by the incorporation of redundancy and auxiliary systems such as extra batteries …
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Economics of using biomass electric power for energy application of light commercial building
… wastes can be utilized in a gasifier to meet the electrical, heating and cooling loads of a building. Based on current economic data, characteristics of a gasifier and that of the building, computer simulations have been performed using hourly weather data, to evaluate the economic feasibility of …
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A microfabricated microconcentrator for sensors and chromatography
… concentrated in the microconcentrator. Rapid electrical heating of the microconcentrator releases the adsorbed species as a 66 concentration pulse", which serves as an injection for the detection system. The relatively small size of the microconcentrator allows it to be heated and cooled …
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Combined convection and other effects in heat transfer in horizontal flows
… copper pipe is used, with uniform peripheral electrical heating. Wall temperature measurements are taken at twelve axial positions. The experiment covers the range of stable mixed convection and strictly laminar flow conditions, with the Reynolds number ranging from 500 to 1000, and the …
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Carbon Supported Metal Carbide Catalysts for the Reduction of Carbon Dioxide
… and carburizing added Mo using microwaves or electrical heating, focused on eliminating the need for methane and/or hydrogen for its preparation. Due to pyrophoricity risks, a multiple-test rig was built to study the catalysts preventing their exposure to air or passivation gases. The …
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Determination of the characteristics of heat transfer from a horizontal silver surface to boiling mixtures of ethanol and benzene
… in the type or method of heat transfer from the heating surface to the boiling liquid. The system is said to pass from a state of nucleate boiling through the maximum to a state of film boiling. The critical point is known to very for various liquids yet no adequate correlations were found which …
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Optimal operation and design of solar-thermal energy storage systems
… optimization of time-variable operation without electrical heating under time-invariant electricity price; the second case study optimizes the operation under time-variant electricity price without electric heaters; the third case study optimizes the operation under time-variant electricity price …
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Characteristics of heat transfer fouling of thin stillage using model thin stillage and evaporator concentrates
… probe while maintaining a constant heat flux by electrical heating and fluid flow rate. The change in fouling resistance with time was measured. Fouling curves obtained for thin stillage and concentrated thin stillage were linear with time but no induction periods were observed. Fouling rates for …
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Chemical decomposition of silanes for the production of solar grade silicon
… theory; and (c) the study of the electric heating of the silicon rod by means of electromagnetic theory. A novel fluid mechanical model is presented that proposes analytical expressions for the growth rate of polysilicon onto the silicon rods and for the energy loss by convection. The …
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Electrification of domestic heating on the island of Ireland to reduce emissions and enhance system stability
… thesis has investigated if the use of electric heating methods could be used to replace fossil fuel methods in the domestic sector in order to reduce emissions with the added benefit of using them as a demand side management (DSM) source in order to provide grid stability and efficiency, while …