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Assessment of the thermomechanical behaviour of perspective nuclear fuel for reactivity insertion accidents
Halabuk, Dávid ; Suk, Ladislav (referee) ; Martinec, Jiří (advisor)
The objective of this master’s thesis is to simulate thermo-mechanical behaviour of nuclear fuel in a pressurized water reactor during a reactivity initiated accident. An important part of this work is focused on examination of processes which occur during such accident and on creation of a detailed overview of material properties of nuclear fuel and fuel cladding which are necessary for simulations that closely reflect reality. Simulations in this thesis examine cases of fresh or irradiated nuclear fuel for two types of fuel cladding, Zircaloy-4, a material that is currently used in nuclear reactors, and ceramic matrix composite material made of SiC. The thesis also presents comparison of results with a corresponding international benchmark and an assessment of the influence of selected input parameters on obtained results.
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Modelling of microelectronic structures properties
Luňáček, Erik ; Řezníček, Michal (referee) ; Vaško, Cyril (advisor)
This work is focused on thermomechanical and electric analyses of microelectronic structures in the ANSYS program. Firstly an analysed model was formed in the program Solidworks. Then structures with components SOT23, SMD 1206, FlipChip and chip with wire bonding interconnection were analyzed. The analyses were performed for the temperatures 50, 100, 150 °C and various materials. The simulations outputs are presented as pictures in colours with models deformations and calculated values. The results will be utilised in education and presented on the web. The Flash, ActionScript and XML technologies were used for application to present results of the research.
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Assessment of the thermomechanical behaviour of perspective nuclear fuel for reactivity insertion accidents
Halabuk, Dávid ; Suk, Ladislav (referee) ; Martinec, Jiří (advisor)
The objective of this master’s thesis is to simulate thermo-mechanical behaviour of nuclear fuel in a pressurized water reactor during a reactivity initiated accident. An important part of this work is focused on examination of processes which occur during such accident and on creation of a detailed overview of material properties of nuclear fuel and fuel cladding which are necessary for simulations that closely reflect reality. Simulations in this thesis examine cases of fresh or irradiated nuclear fuel for two types of fuel cladding, Zircaloy-4, a material that is currently used in nuclear reactors, and ceramic matrix composite material made of SiC. The thesis also presents comparison of results with a corresponding international benchmark and an assessment of the influence of selected input parameters on obtained results.
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Modelling of microelectronic structures properties
Luňáček, Erik ; Řezníček, Michal (referee) ; Vaško, Cyril (advisor)
This work is focused on thermomechanical and electric analyses of microelectronic structures in the ANSYS program. Firstly an analysed model was formed in the program Solidworks. Then structures with components SOT23, SMD 1206, FlipChip and chip with wire bonding interconnection were analyzed. The analyses were performed for the temperatures 50, 100, 150 °C and various materials. The simulations outputs are presented as pictures in colours with models deformations and calculated values. The results will be utilised in education and presented on the web. The Flash, ActionScript and XML technologies were used for application to present results of the research.
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