Sökning: "heat release rate"

Visar resultat 6 - 10 av 79 avhandlingar innehållade orden heat release rate.

  1. 6. Limiting conditions for a sustained flame over condensed fuels : Analysis by experiments and stagnant layer theory

    Författare :Frida Vermina Plathner; Avdelningen för Brandteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Critical mass flux; diffusion flame; extinction; sustained ignition; chemical heat of combustion; Convective heat transfer coefficient; external heat flux;

    Sammanfattning : Ignition and extinction characteristics of a material determine whether a fire will be initiated and grow. In fire safety engineering, where modellers deal with a multitude of materials, simplified thresholds are commonly used to determine when ignition and extinction occur. LÄS MER

  3. 7. Study of heat release rates of mining vehicles in underground hard rock mines

    Författare :Rickard Hansen; Haukur Ingason; Nicholas Dembsey; Mälardalens högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy- and Environmental Engineering; energi- och miljöteknik;

    Sammanfattning : A unique study on fire safety in hard rock underground mines with focus on heat release rates of mining vehicles is presented. A literature inventory was conducted with respect to fires in underground hard rock mines, which revealed that the most common fire cause in underground mines was flammable liquid sprayed onto hot surface and the most common fire object was a vehicle. LÄS MER

  4. 8. Reaction to fire performance of wood and other building products

    Författare :Lazaros Tsantaridis; KTH; []
    Nyckelord :building products; charring of wood; cone calorimeter; fire retardant treated wood; fire tests; ignitability; mass loss; rate of heat release;

    Sammanfattning : The theme of this thesis is the reaction to fire performanceof wood and other building products, andparticularly thematerial fire properties time to ignition, rate of heat releaseand smoke production. These properties have been measured by asmall-scale fire test method, the Cone Calorimeter, andpresented for different types of building products. LÄS MER

  5. 9. On the Combustion Characteristics of Closely-Coupled LD Diesel Injection Strategies

    Författare :Michael Denny; Förbränningsmotorer; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Diesel combustion; Closely-Coupled Pilot; Closely-Spaced Pilot; Combustion Noise; Heat release rate shaping; Multiple-injection strategy; Formaldehyde PLIF;

    Sammanfattning : Multiple-pilot injection strategies with both moderate and short time separations (dwells) are investigated in a light-duty diesel engine. Both conventional and optical engine experiments are performed. LÄS MER

  7. 10. Experimental and Theoretical Study of Rack Storage Fires

    Författare :Haukur Ingason; Avdelningen för Brandteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; response time; in-rack sprinkler; flame heat transfer; gas velocity; gas temperature; flame height; in-rack fire plume; Rack storage fire; fire growth rate; Technological sciences; Teknik;

    Sammanfattning : A theoretical and experimental study of rack storage fires and responsiveness of sprinklers is presented. Free-burn tests with non-combustible and combustible material were carried out in reduced scale with verification in large scale. LÄS MER