Sökning: "extinguishment"

Visar resultat 1 - 5 av 8 uppsatser innehållade ordet extinguishment.

  1. 1. Släcksystem för ubåtar - vattendimma

    Kandidat-uppsats, Lunds universitet/Avdelningen för Brandteknik

    Författare :Axel Nordström; Simon Thorvaldsson; [2023]
    Nyckelord :Ubåt; vattendimma; krav och regelverk; brandsäkerhet; brandskyddssystem; Submarine; water mist; rules and regulations; fire safety; fire suppression system; Technology and Engineering;

    Sammanfattning : This report is written on the behalf of SAAB Kockums AB to investigate the feasibility of using water mist fire protection systems on board conventional submarines as an alternative to the traditional solution using Halon 1301. Halon 1301 has since the late eighties been phased out due to environmental concerns. LÄS MER

  3. 2. Suppression of Li-ion Battery Fires

    Master-uppsats, Lunds universitet/Avdelningen för Brandteknik

    Författare :Linfan Cai; [2023]
    Nyckelord :Lithium-ion Battery; Fire Suppression System; Extinguishing Agent; Thermal Runaway; Battery Energy Storage System; Electric Vehicle; Technology and Engineering;

    Sammanfattning : This thesis presents a systematic literature review of fixed fire suppression systems and extinguishing agents for lithium-ion battery (LIB) fires. The review identifies 85 relevant sources published between 2013 and March 2023, and categorises different research experiments into cell-level, module-level, electric vehicle (EV) pack-level, battery energy storage system (BESS) rack-level and warehouse storage experiments, according to LIB configurations. LÄS MER

  4. 3. The predictive content of one-time accounting items

    D-uppsats, Handelshögskolan i Stockholm/Institutionen för finansiell ekonomi

    Författare :Sebastian Roth; [2020]
    Nyckelord :Special items; One-time items; Firm life cycle; Earnings persistence; Profit margins;

    Sammanfattning : My paper suggests that investors can leverage corporate life cycle theory to enhance their understanding of one-time items, helping them to decide whether those items shall be considered or neglected. One-time revenues are only associated with future performance for longer earnings windows in mature firms. LÄS MER

  5. 4. Factors influencing the generation of carbon monoxide in fires partially suppressed through water mist application

    Master-uppsats, Lunds universitet/Avdelningen för Brandteknik

    Författare :Haydn Lewis; [2020]
    Nyckelord :Fire safety engineering; water mist; fire suppression; carbon monoxide; water; combustion; Technology and Engineering;

    Sammanfattning : Fires in the built environment typically consist of diffusion flames with inefficient mixing of fuel and oxygen, resulting in a degree of incomplete combustion and the generation of carbon monoxide. Fire suppression systems, used to control the growth and spread of fire, influence the combustion reaction process. LÄS MER

  7. 5. Influence of ventilation on ro-ro space fire development : A study using two-zone fire models in order to explore tendencies of how different ventilation parameters affects the fire development in a ro-ro space

    Uppsats för yrkesexamina på grundnivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Martin Lindgren; Andreas Lilja; [2019]
    Nyckelord :Fire; Ro-ro space; Ventilation; Simulation; Two-zone model; Brand; Rorolastutrymme; Ventilation; Simulering; Tvåzonsmodell;

    Sammanfattning : A ship to which vehicles and other loads can be rolled on and off is usually named ro-ro ship. A ro-ro ship consists of large corridor shaped space, normally extending to a considerable length or the entire length of the ship, which is usually loaded with various vehicles or stowage units. LÄS MER