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Efeito de 'streaming' em reatores rapidos do tipo GCFRCOLLUSSI, IRSO 09 October 2014 (has links)
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00364.pdf: 1481625 bytes, checksum: 3e61ccd9f420e1e63c4a1ad0d8304082 (MD5) / Dissertacao (Mestrado) / IPEN/D / Escola Politecnica, Universidade de Sao Paulo - POLI/USP
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Calculo dos principais parametros neutronicos do reator de pesquisa IEA-R1OJIMA, MARIO K. 09 October 2014 (has links)
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12900.pdf: 1638439 bytes, checksum: 7f662044f1ab00e396f53ee393bfeb09 (MD5) / Dissertacao (Mestrado) / IEA/D / Escola Politecnica, Universidade de Sao Paulo - POLI/USP
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Efeito de 'streaming' em reatores rapidos do tipo GCFRCOLLUSSI, IRSO 09 October 2014 (has links)
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00364.pdf: 1481625 bytes, checksum: 3e61ccd9f420e1e63c4a1ad0d8304082 (MD5) / Dissertacao (Mestrado) / IPEN/D / Escola Politecnica, Universidade de Sao Paulo - POLI/USP
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Calculo dos principais parametros neutronicos do reator de pesquisa IEA-R1OJIMA, MARIO K. 09 October 2014 (has links)
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12900.pdf: 1638439 bytes, checksum: 7f662044f1ab00e396f53ee393bfeb09 (MD5) / Dissertacao (Mestrado) / IEA/D / Escola Politecnica, Universidade de Sao Paulo - POLI/USP
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An acetaldehyde supply mechanism for the improved production of pentaerythritolJennery, Graham Robert 07 August 2014 (has links)
M.Tech. (Chemical Engineering) / The work presented here constitutes an account of the optimization of a chemical reaction process with special reference to the methodology of reagent addition in the case of fast reactions. The chemical reaction process for manufacture of the Formaldehyde Acetaldehyde condensation product Pentaerythritol (Penta) as it is conducted at the plant of National Chemical Products, a division of Sentrachem, was studied in detail. The industrial scale reactor design was critically examined, 'with emphasis on the evaluation of mixing and reagent dispersion efficacy and its effect on chemical reactor performance. Batches of Pentaerythritol products were prepared in a laboratory bench scale reactor. Reagent concentrations and proportions were controlled at various values and the reaction temperature profiles were controlled so as to be similar for all the tests. Moreover the mode and intensity of liquid agitation and reagent admixture was varied in a controlled manner between the various tests. The reaction liquors from the various batches were sampled and the samples subjected to chemical analysis. The results were then compared in order to show the effect of agitation and reagent dispersion intensity on the reaction process and products. The results indicate conclusively that liquid flow or agitation intensity and reagent admixture or sparging variation has an effect on the type and relative amounts of chemical species produced in the laboratory apparatus. This effect is especially significant with respect to the side products Di-pentaerythritol and Bis Penta Mono-formal (B.P.M.F.). The effect is also demonstrated for the gamut of various side products collectively and arbitrarily designated as the so-called "unknowns". Furthermore the formation of coloured products in the reaction is distinctly influenced by the same variation. High intensity agitation and reagent sparging enhances Dipenta formation and inhibits formation of the Formal B.P.M.F, "unknowns" and colour. At very low agitation and sparging intensity Di-penta production is diminished while B.P.M.F., "unknowns" and colour formation is favoured. The work includes a proposal for the manufacture and installation of improved reagent sparging systems in the NCP Transvaal commercial scale Penta Reactor.A tentative method for the design of a continuous reactor for penta production using optimised Tee mixers for high velocity in-line reagent sparging is also developed.
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The reduction of a-bromoisobutyrophenone with aluminum isopropoxide : the nitration of p-cymene.Allenby, Owen Clement Wentworth January 1942 (has links)
No description available.
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Pressure losses across a 180 degree turn in the AP1000 cooling annulus /Nelson, Roy K. January 1900 (has links)
Thesis (M.S.)--Oregon State University, 2009. / Printout. Includes bibliographical references (leaves 80-84). Also available on the World Wide Web.
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Conceptual design of a fluidized bed nuclear reactor : statics, dynamics, and safety-related aspects /Agung, Alexander, January 1900 (has links)
Thesis (doctoral)--Technical University of Delft, 2007. / "Gas-cooled fluidized bed nuclear reactor ... (FLUBER)"--P. 3. Includes bibliographical references (p. [139]-148).
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Contribuicao ao estudo do comportamento dinamico do reator nuclear IEAR-1LYRA, MOACIR de A. 09 October 2014 (has links)
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01288.pdf: 1641778 bytes, checksum: 2707c37a53de3662e15951333b3ff12a (MD5) / Dissertacao (Mestrado) / IEA/D / Escola Politecnica, Universidade de Sao Paulo - POLI/USP
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Contribuicao ao estudo do comportamento dinamico do reator nuclear IEAR-1LYRA, MOACIR de A. 09 October 2014 (has links)
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01288.pdf: 1641778 bytes, checksum: 2707c37a53de3662e15951333b3ff12a (MD5) / Dissertacao (Mestrado) / IEA/D / Escola Politecnica, Universidade de Sao Paulo - POLI/USP
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