Sökning: "accident model"

Visar resultat 1 - 5 av 113 avhandlingar innehållade orden accident model.

  1. 1. Having a New Pair of Glasses : Applying Systemic Accident Models on Road Safety

    Författare :Yu-Hsing Huang; Erik Hollnagel; Pietro Carlo Cacciabue; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; accident model; road safety; accident prevention; accident analysis; Cognitive science; Kognitionsvetenskap;

    Sammanfattning : The main purpose of the thesis is to discuss the accident models which underlie accident prevention in general and road safety in particular, and the consequences of relying on a particular model have for actual preventive work. The discussion centres on two main topics. LÄS MER

  3. 2. The Effective Convectivity Model for Simulation and Analysis of Melt Pool Heat Transfer in a Light Water Reactor Pressure Vessel Lower Head

    Författare :Chi Thanh Tran; Tomas Lefvert; Harri Tuomisto; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; light water reactor; hypothetical severe accident; accident progression; accident scenario; core melt pool; heat transfer; turbulent natural convection; heat transfer coefficient; phase change; mushy zone; crust; lower plenum; analytical model; effective convectivity model; CFD simulation; Thermal energy engineering; Termisk energiteknik;

    Sammanfattning : Severe accidents in a Light Water Reactor (LWR) have been a subject of intense research for the last three decades. The research in this area aims to reach understanding of the inherent physical phenomena and reduce the uncertainties in their quantification, with the ultimate goal of developing models that can be applied to safety analysis of nuclear reactors, and to evaluation of the proposed accident management schemes for mitigating the consequences of severe accidents. LÄS MER

  4. 3. Development, validation and application of an effective convectivity model for simulation of melt pool heat transfer in a light water reactor lower head

    Författare :Chi Thanh Tran; Truc-Nam Dinh; Florian Fichot; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; light water reactor; hypothetical severe accident; accident progression; accident scenario; core melt pool; heat transfer; turbulent natural convection; heat transfer coefficient; phase change; mushy zone; crust; lower plenum; analytical model; effective convectivity model; CFD simulation.; Other physics; Övrig fysik;

    Sammanfattning : Severe accidents in a Light Water Reactor (LWR) have been a subject of the research for the last three decades. The research in this area aims to further understanding of the inherent physical phenomena and reduce the uncertainties surrounding their quantification, with the ultimate goal of developing models that can be applied to safety analysis of nuclear reactors. LÄS MER

  5. 4. A systemic traffic accident model

    Författare :Yu-Hsing Huang; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; trafikolyckor; trafiksäkerhet; traffic safety; traffic accidents; Computer science; Datavetenskap;

    Sammanfattning : Accident models are essential for all efforts in safety engineering. They influence the investigation and analysis of accidents, the assessment of systems and the development of precautions. Looking at accident statistics, the trend for Swedish roads is not pointing towards increased safety. LÄS MER

  7. 5. Verktyg i lokalt säkerhetsarbete med särskilt fokus på olycksutredningar

    Författare :Mattias Strömgren; Ragnar Andersson; Lars Harms-Ringdahl; Kjell Harald Olsen; Karlstads universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Municipal safety management; local safety management; risk management; tools for safety management; risk analysis; accident investigation; methods for accident investigation; accident investigation process; accident analysis; Kommunalt säkerhetsarbete; lokalt säkerhetsarbete; riskhantering; verktyg för säkerhetsarbete; riskanalys; olycksutredning; metoder för olycksutredning; olycksutredningsprocess; olycksanalys; Public Health Science; Folkhälsovetenskap;

    Sammanfattning : Kommuner har en unik position i säkerhetsarbetet genom att vara nära både medborgarna och de olyckor och skador som drabbar befolkningen. Trots långtgående framsteg inom teknologi och ett etablerat välfärdssamhälle utgör personskador till följd av olyckor ett betydande folkhälsoproblem i Sverige liksom i övriga nordiska länder. LÄS MER