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Visar resultat 1 - 5 av 32 uppsatser som matchar ovanstående sökkriterier.
1. A VVER1000 primary side model in Apros
Master-uppsats, KTH/FysikSammanfattning : Nuclear power plants generate electricity by means of splitting atoms. The basic safety requirements and objectives are to protect the people, society, and the environment from radiological accidents, limit harmful effects of ionizing radiation during operation and take all reasonable practical steps to prevent radiological accidents. LÄS MER
2. BWR Reactor Fuel Channel Manufacturing Simulations
Master-uppsats, KTH/HållfasthetsläraSammanfattning : Fuel channels are used to keep the components of a nuclear fuel bundle in place. The fuel channel of a new nuclear fuel which is being developed at Westinghouse has a complex geometry which creates challenges in the manufacturing process. FE simulations were developed of a two-stage forming process of the fuel channel. LÄS MER
3. Undersökning av ledarkonstruktion vid bränsletest : Teoretisk konceptframtagning av ledarkonstruktion
Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Industriell teknikSammanfattning : In nuclear power plants, during operation at high temperatures, there can occur a steam build-up around the fuel rods at an increasing rate. This inhibits the water’s effectivity in removing heat from the rods. When this occurs and reaches a critical point, the temperature in the fuel rods surges, which can lead to them being damaged. LÄS MER
4. Power Increase Limits to Prevent Pellet-Cladding Interaction : Calculation of Strain- and Fission Gas Release Margins
Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för fysik och astronomiSammanfattning : With a growing share of intermittent electrical energy sources in the national grid of Sweden, areview of the safety of using nuclear power for flexible operation is necessary. Today nuclearpower is used as base load power and when examining challenges of flexible power operation,the risk for Pellet-Cladding Interaction (PCI), stands out. LÄS MER
5. Development of a Nordic BWR plant model in APROS and design of a power controller using the control rods
Master-uppsats, KTH/FysikSammanfattning : In this master thesis an input-model of a Nordic BWR power plant has been developed in APROS. The plant model contains key systems and major thermohydraulic components of the steam cycle, including I&C systems (i.e. power, pressure, level and flow controls). LÄS MER