Sökning: "smoke gas layer"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden smoke gas layer.

  1. 1. EVALUATION OF MULTI-ZONE MODELLING FOR FIRE RISK ASSESSMENT IN TUNNELS

    Master-uppsats, Lunds universitet/Avdelningen för Brandteknik

    Författare :Annachiara Nardone; [2023]
    Nyckelord :tunnels; tunnel fires; multi-zone modelling; Technology and Engineering;

    Sammanfattning : Abstract Tunnels are one of the most complex and delicate elements of the road system. Assessing fire behaviour and fire severity remains the biggest source of uncertainty in risk assessment and is an essential step in the tunnel design process. LÄS MER

  3. 2. Effects of stratospheric wildfire smoke on ozone depleting substances and ozone levels in the northern midlatitudes

    Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Kärnfysik

    Författare :Christopher Grüner; [2023]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : The goal of this project was to examine whether there are correlations between recent wildfires in the northern hemisphere and stratospheric ozone anomalies in the midlatitudes following the creation of ozone depleting substances. To achieve this goal, data from the Aura satellite's Microwave Limb Sounder instrument was used and processed with self-written Python scripts. LÄS MER

  4. 3. Brandteknisk Riskvärdering Punkt Galleria Västerås

    L3-uppsats, Lunds universitet/Avdelningen för Brandteknik

    Författare :Joar Persson; Hanna Eklöf; Johanna Hammarberg; Torbjörn Neckfors; [2017]
    Nyckelord :Fire safety evaluation; fire; evacuation; Pathfinder; Fire Dynamics Simulation; mall; Technology and Engineering;

    Sammanfattning : The following is a fire-safety-risk-assessment with the purpose of evaluating the safety of the shopping center Punkt in Västerås, Sweden. The risk assessment is an assignment in the course Brandteknisk Riskvärdering given at Lunds Tekniska Högskola, Lunds University, Sweden. Punkt is a shopping center on floor 3 and 3.5 of a 9-story building. LÄS MER

  5. 4. Studies on the application of gas cooling as used by firefighters

    Master-uppsats, Lunds universitet/Avdelningen för Brandteknik

    Författare :Jan Bonnier; [2017]
    Nyckelord :Gas cooling; Firefighting; Fire Service; 3D-technique; Technology and Engineering;

    Sammanfattning : Gas cooling is a technique used by firefighters to create a safer work environment inside a compartment fire. By spraying water into the smoke layer, the smoke layer temperature will decrease significantly. Next to the lower temperature, the flammability of the smoke layer will also decrease. LÄS MER

  7. 5. Thermal Exposure Caused by the Smoke Gas Layer in Pre-flashover Fires : A Two-zone Model Approach

    M1-uppsats, Luleå tekniska universitet/Byggkonstruktion och brand

    Författare :Lucas Andersson; [2016]
    Nyckelord :Thermal exposure; smoke gas layer; two-zone model;

    Sammanfattning : A pre-flashover fire is very different from a post-flashover fire. The main difference is that in a pre-flashover fire the gas temperature and the radiation temperature differ. One thing that makes it a lot different is that the thermal exposure induced by a pre-flashover fire is largely affected by the smoke gas layer. LÄS MER