Sökning: "kärnkraftverk"

Visar resultat 16 - 20 av 29 avhandlingar innehållade ordet kärnkraftverk.

1. 16. Climatic conditions inside nuclear reactor containments : Evaluation of moisture condition in the concrete within reactor containments and interaction with the ambient compartments

   Författare :Mikael OXFALL; Avdelningen för Byggnadsmaterial; []
   Nyckelord :kärnkraft; betong; in situ mätningar; relativ fuktighet; kokvattenreaktorer; tryckvattenreaktorer; masstransport;

   Sammanfattning : Safety is the top priority at a nuclear facility. The nuclear power plants are designed to prevent radioactive leakage to the surroundings, both during normal operation as well as in case of a severe accident. One of the most important structures in a nuclear power plant, with regard to safety, is thus the reactor containment wall. LÄS MER

3. 17. Concrete as a multi-physical material with applications to hydro power facilities

   Författare :Tobias Gasch; Anders Ansell; Richard Malm; Erik Nordström; Mats Emborg; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Civil and Architectural Engineering; Byggvetenskap;

   Sammanfattning : During its lifetime, a concrete structure is subjected to many different actions, ranging from mechanical loads to environmental actions. To accurately predict its integrity from casting and throughout its service life, a modelling strategy is required that considers mechanical loading but also implicitly accounts for physical effects such as temperature and moisture variations. LÄS MER

4. 18. From Pioneers to Target Group : Social Change, Ethnicity and Memory in a Lithuanian Nuclear Power Plant Community

   Författare :Kristina Sliavaite; Sociologiska institutionen; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Ignalina nuclear power plant; Deindustrialization; post-socialism; East Central Europe; ethnicity; collective memory; social change; Russian speaking population; decline; modernization; migration; enclave; risk; social insecurity; uncertainty; national insurance; Social problems and welfare; Cultural anthropology; ethnology; Sociala problem; migration; risk; social välfärd; socialförsäkring; Kulturantropologi; etnologi;

   Sammanfattning : This thesis focused on an examination of human agency and strategies for responding to rapid social and economic change. Fieldwork was carried out in the community of Visaginas town that was built during the Soviet period in Lithuania. The town is situated next to the Ignalina nuclear power plant. LÄS MER

5. 19. Modelling of intergranular stress corrosion cracking mechanism : Du som saknar dator/datorvana kan kontakta [email protected] för information

   Författare :Michal Sedlak Mosesson; Bo Alfredsson; Thierry Couvant; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cohesive Zone Model; Fracture Mechanics; Diffusion; Duplex oxide; Multi-physics; Finite Element Model; Engineering Mechanics; Teknisk mekanik;

   Sammanfattning : When assessing nuclear power plant life, stress corrosion cracking (SCC) plays an important role. Stress corrosion cracking in nuclear power plants is well recognized and heavily researched. Still due to its complicated nature it is not completely understood. There are many different damage mechanisms behind SCC. LÄS MER

7. 20. Phase Separation in Stainless Steels Studied by Small-angle Neutron Scattering

   Författare :Xin Xu; Peter Hedström; Joakim Odqvist; John Ågren; Cristelle Pareige; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fe-Cr alloys; stainless steels; spinodal decomposition; phase separation; small-angle neutron scattering; mechanical properties; Teknisk materialvetenskap; Materials Science and Engineering;

   Sammanfattning : Fe-Cr based steels, i.e. stainless steels, possessing a combination of excellent corrosion resistance and good mechanical properties, have indispensable applications ranging from low-end cooking utensils, to sophisticated components for nuclear power plants. LÄS MER