Sökning: "Nuclear accident"
Visar resultat 1 - 5 av 69 uppsatser innehållade orden Nuclear accident.
1. Utvecklingsbehov av probabilistisk säkerhetsanalys (PSA) för applicering på SMR:er
Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad kärnfysikSammanfattning : Nuclear power is an important part of Sweden's energy system and contributes with about 30 % of the supplied electric energy. Interest in new construction is currently high and one type of reactor that may be built is small modular reactors, SMRs. LÄS MER
2. Uncertainty Analysis : Severe Accident Scenario at a Nordic Nuclear Power Plant
Master-uppsats, Högskolan Dalarna/Institutionen för information och teknikSammanfattning : Nuclear Power Plants (NPP) undergo fault and sensitivity analysis with scenario modelling to predict catastrophic events, specifically releases of Cesium 137 (Cs-137). The purpose of this thesis is to find which of 108 input-features from Modular Accident Analysis Program (MAAP)simulation code are important, when there is large release of Cs-137 emissions. LÄS MER
3. The role of nuclear energy
Master-uppsats, Högskolan i Gävle/Energisystem och byggnadsteknikSammanfattning : The societies in Europe have developed enormously in recent decades, and this in turn has led to a greater need for electricity. Large parts of society are electrified and are now one of the most essential parts of the system. LÄS MER
4. Models for estimating radiation dose and LAR from radioactive fallout: extended dose algorithms for the computational tool LARCalc
Master-uppsats,Sammanfattning : Today, emergency preparedness is needed against both nuclear reactor accidents and nuclear weapons fallout. Both scenarios can lead to exposure of ionizing radiation. Upon exposure, radionuclides will incur a radiation dose both internally and externally. LÄS MER
5. Validering av Ecolego för modellering i enlighet med PSA nivå 3 : Beräkning av markdeposition av radionuklider vid fiktiv svår härdskada vid Forsmarks kärnkraftverk
Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad kärnfysikSammanfattning : The scope of this project is to investigate if the software Ecolego is suitable for creating models in accordance with level 3 PSA, with the goal of creating a model calculating the possible outcomes for the radiological impact at 20 km distance resulting from a fictional severe nuclear accident at the Forsmark Nuclear Power Plant. This report aims to answer the questions “What is the concentration on the ground (kBq/m2), at a distance of 20 km, 30 days and 10 years after the fictional severe nuclear accident, with and without filtered venting” and “Is Ecolego a suitable software for level 3 PSA models?” The source term for the fictional severe nuclear accident is made to resemble the actual source term from the Fukushima Daiichi accident including the radionuclides Cs-134, Cs-136, Cs-137, I-131, I-132, I-133 and Te-132. LÄS MER