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 11 of 11 for “"Electric generators."”.
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Analysis of loss mechanisms in superconducting windings for rotating electric generators
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1981.
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Running on Fumes: Preventable Public Health Failures and Mishaps Post-Hurricane Maria in Puerto Rico
… also highlight the importance of providing fuel, electric generators, and personnel to restore electricity as soon as possible after a hurricane, given that electricity has become an essential aspect of modern life and an integral component of public health infrastructure, especially in …
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Análise de zeros atrasados em unidades offshore
… asymmetric currents are expected to appear in electrical systems, whenever a short circuit occurs somewhere nearby electric generators buses. In the case of offshore production platforms, the so called asymmetry, along with other specific conditions, may give rise to the so called “delayed …
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CO₂ and public health impacts of US residential heating electrification
… Replacement of this combustion heating with electric heating is expected to reduce these impacts by shifting emissions away from population centers to electric generators. However, these benefits have not been assessed. This thesis quantifies the health impacts of replacing residential …
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A microfabricated solid oxide fuel cell
… devices comes the rising demand for portable electric power. Current battery technology gives a very modest energy return per weight or volume. Hydrocarbons have a significantly higher energy density, and so fuel conversion systems only need to have several percent efficiency to match and …
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Comparison of low voltage ride through capabilities of synchronous generator with STATCOM and DFIG based wind farms
… from an increasing demand of cheap and clean electricity across the globe. Wind generators are available as small, medium and large scale electric generators, usually in the range of 1kW to 100MW and are usually installed in areas rich in wind resource which may or may not be located close to …
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A direct current compensator dynamo
Made available in DSpace on 2016-11-09T23:48:15Z (GMT). No. of bitstreams: 2 5976720_opt.pdf: 9644175 bytes, checksum: 194c5b9233710d8193a10264309fa807 (MD5) license.txt: 4183 bytes, checksum: 1dcc2037833d76bede73d5717587543b (MD5) Previous issue date: 1912
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Effect Of Coriolis And Centrifugal Forces On Turbulence And Transport At High Rotation And Buoyancy Numbers
… machines. The study focuses on gas turbines and electric generators for high temperature and high energy density applications, respectively, both which employ rotating cooling channels so that materials do not fail under high temperature and high stress environment. Prediction of fluid flow and …
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Preliminary design of a cryogenic thermoelectric generator.
A cryogenic thermoelectric generator is proposed to increase the efficiency of a vehicle propulsion system that uses liquid nitrogen as its fuel. The proposed design captures some of the heat required for vaporizing or initial heating of the liquid nitrogen to produce electricity. The …
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Phasor Measurement Unit (PMU) : based system for event detection on synchronous generators
… for finding the necessary parameters of the generators and modeling them. These parameters were: the inertia of the generators, the speed regulation constant, and the time constant of the turbine-governor system. Axiomatic Design was used for developing the design protocol for Event Detection …
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Magnetic flux compression for high voltage pulse applications
Helical Magnetic Flux Compression Generators (MFCG) are the most promising energy sources with respect to their current amplification and compactness. However, their intrinsic flux loss limits severely their performance and it is not yet well understood. All flux losses have a differing degree of …