Sökning: "Fire tests"

Visar resultat 11 - 15 av 172 uppsatser innehållade orden Fire tests.

  1. 11. 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. 12. Pricing and Modeling Heavy Tailed Reinsurance Treaties - A Pricing Application to Risk XL Contracts

    Master-uppsats, KTH/Matematisk statistik

    Författare :Ormia Abdullah Mohamad; Anna Westin; [2023]
    Nyckelord :Reinsurance; Extreme Value Theory; POT-model; Hill estimator; Risk XL contracts; Generalized Pareto distribution; Method of Moments.; Återförsäkring; Extremevärdesteori; POT-modellen; Hill estimatorn; Risk XL kontrakt; generella Paretofördelningen; Momentmetoden.;

    Sammanfattning : To estimate the risk of a loss occurring for insurance takers is a difficult task in the insurance industry. It is an even more difficult task to price the risk for reinsurance companies which insures the primary insurers. LÄS MER

  4. 13. Synergistic fire- and mechanical effect of biochar and ammonium polyphosphate in epoxy composite

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

    Författare :Anton Olausson; Ludvig Jönsson; [2023]
    Nyckelord :Ammonium polyphosphate; Biochar; Composite; Epoxy; Synergistic effect;

    Sammanfattning : Polymer composites are used in a varying extent and are challenging the use of traditional materials due to the push towards sustainable development. They have replaced steels and aluminum alloys in applications. LÄS MER

  5. 14. The transition of reaction-to-fire behavior from biomass to corresponding biochar

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

    Författare :Jacob Johansson; [2023]
    Nyckelord :biochar; biomass; heat release rate; reaction-to-fire;

    Sammanfattning : As of now, the environmental issue is very topical and there is also an underutilization of different biological material where these can be used in ways that are typically not thought of. One way to increase the degree of utilization is to convert various biomasses such as natural rubber, olive pits, wood chips, and reed pellets into biochar. LÄS MER

  7. 15. The Effect on Mechanical Properties in Biochar Replaced Cement & Aggregate in Concrete Before and After Fire Exposure

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

    Författare :Felix Hansen; Mathias Berglund; [2023]
    Nyckelord :Biochar; Concrete; Sintering; Fire; Mechanical properties; Sustainability; Cement; Biochar in concrete; Building industry; Concrete exposed to fire.; Biokol; Betong; Sintring; Eld; Mekaniska egenskaper; Hållbarhet; Cement; Biokol i betong; Byggindustri; Brandexponerad betong.;

    Sammanfattning : Concrete is good as a construction material regarding fire and its properties regarding strength. However, the concrete expands and cracks due to fire resulting in structural damage. According to the literature the concrete usually loses its strength during and after fire exposure due to themechanical and physical changes. LÄS MER