Global ETD Search

31	Fracture property changes with oxidation and irradiation in nuclear graphites Ouagne, Pierre January 2001 (has links) No description available. 620.11223
32	A two dimensional fluid dynamics solver for use in multiphysics simulations of gas cooled reactors Lockwood, Brian Alan 12 July 2007 (has links) Currently, in the field of reactor physics, there is a drive for high fidelity, numerical simulations of reactors for the purposes of design and analysis. Since the behavior of a reactor is dependent on various physical phenomena, high fidelity simulations must be able to accurately couple these different types of physics. This is the essence of multiphysics simulations. In order to accurately simulate the thermal behavior of a reactor, the physics of neutron transport must be coupled to the fluid flow and solid phase conduction occurring within the reactor. This thesis develops a computational fluid dynamics solver for this purpose. The solver is based on the PCICE solution algorithm and employs cell-centered finite volumes. In addition to the fluid dynamics solver, a newly developed form of conjugate heat transfer is implemented. This implementation tightly couples the physics of solid phase heat conduction with the fluid dynamics in an efficient and consistent manner. Finally, the radiation transport code EVENT is used to provide heat generation data to the fluids solver. Using this fluids solver, several benchmark problems are analyzed and the formulation is validated. Computational fluid dynamics Multiphysics Numerical methods Finite volume methods Gas cooled reactors Thermal conductivity Fluid dynamics
33	Medidas de permeabilidade e de condutividade termica efetiva em isolamentos termicos do tipo fibra SKODA, SANDRO 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:29:20Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:00:41Z (GMT). No. of bitstreams: 1 01303.pdf: 5678711 bytes, checksum: bea6566350f10df4fb3cd2f58bc36973 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP absorption gas cooled reactors htgr type reactors pressure vessels thermal insulation tubes
34	Utilizacao dos gases residuais de uma planta HTGR .Turbina a gas para dessalinizacao da agua do mar ALARCON HUNTER, DARIO A. 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:29:23Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:01:07Z (GMT). No. of bitstreams: 1 01353.pdf: 5076079 bytes, checksum: d2f39c5bdfa7d13ce532306ccaf65ab5 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP gas cooled reactors htgr type reactors gases separation processes desalination turbines water sea water
35	Estudos preliminares de viabilidade neutronica e termohidraulica de um reator OTTO-HTR, utilizando plutonio como combustivel TING, DANIEL K.S. 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:24:30Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:04:10Z (GMT). No. of bitstreams: 1 00436.pdf: 5644704 bytes, checksum: a00c4aa225f16ed8ea649befe35fcf0d (MD5) / Dissertacao (Mestrado) / IEA/D / Escola Politecnica, Universidade de Sao Paulo - POLI/USP fertile materials fuels gas cooled reactors htgr type reactors neutrons plutonium reactors
36	Definicoes preliminares dos parametros do projeto de um reator nuclear experimental de potencia, utilizando uranio natural e grafita... por gas helio BALTAZAR, OSNI 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:24:32Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:05:26Z (GMT). No. of bitstreams: 1 00038.pdf: 3448758 bytes, checksum: ee4c21b4aec06be8af7bb4daf64e5864 (MD5) / Dissertacao (Mestrado) / IEA/D / Escola Politecnica, Universidade de Sao Paulo - POLI/USP gas coolant gas cooled reactors htgr type reactors graphite moderator natural uranium fuel
37	Estudo comparativo do efeito do U-236 no custo do combustivel de reatores HTGR e PWR MARZO, MARCO A.S. 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:26:01Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:06:39Z (GMT). No. of bitstreams: 1 12898.pdf: 1352619 bytes, checksum: ef6fd6b00ac291ab7582c76b30c8f0bb (MD5) / Dissertacao (Mestrado) / IEA/D / Escola Politecnica, Universidade de Sao Paulo - POLI/USP e. isotopes uranium 236 economics cost fuels fuel cycle gas cooled reactors htgr water cooled reactors pwr
38	Simulacao de acidentes de reatividade no reator tipo HTGR Fort Saint Vrain FAINER, GERSON 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:26:09Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:10:21Z (GMT). No. of bitstreams: 1 01427.pdf: 1451336 bytes, checksum: 8e506680c08097cd2383226d2ea1cc2e (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP accidents reactor accidents analog systems reactor simulators gas cooled reactors htgr type reactors programming b codes
39	Medidas de permeabilidade e de condutividade termica efetiva em isolamentos termicos do tipo fibra SKODA, SANDRO 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:29:20Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:00:41Z (GMT). No. of bitstreams: 1 01303.pdf: 5678711 bytes, checksum: bea6566350f10df4fb3cd2f58bc36973 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP absorption gas cooled reactors htgr type reactors pressure vessels thermal insulation tubes
40	Utilizacao dos gases residuais de uma planta HTGR .Turbina a gas para dessalinizacao da agua do mar ALARCON HUNTER, DARIO A. 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:29:23Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:01:07Z (GMT). No. of bitstreams: 1 01353.pdf: 5076079 bytes, checksum: d2f39c5bdfa7d13ce532306ccaf65ab5 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP gas cooled reactors htgr type reactors gases separation processes desalination turbines water sea water

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