Sökning: "wall effect"

Visar resultat 16 - 20 av 242 uppsatser innehållade orden wall effect.

  1. 16. Experimental study on the effect of rocket nozzle wall materials on the stability of methane

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Thomas L. Holmboe; [2023]
    Nyckelord :Methane; pyrolysis; catalysis; nickel; coke deposition; chemical modelling; GRI3.0; rocket nozzle; regenerative cooling;

    Sammanfattning : There has recently been an increased interest in methane as a rocket propellant due to its physical properties as well as the possibility of in-situ resource utilization in places like Mars. As part of ESA’s Future Launcher Preparatory Program, KTH in cooperation with GKN Aerospace has started the MERiT program, which seeks to study the characteristics of methane under conditions found in rocket nozzle cooling channels. LÄS MER

  3. 17. Development of HVAC simulations for truck cabins using OpenFOAM

    Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningslära

    Författare :Junaid Haider; [2023]
    Nyckelord :Computational Fluid Dynamics; OpenFOAM; Conjugate Heat Transfer; chtMultiRegionFoam;

    Sammanfattning : In regions with cold climates, a layer of ice often forms on vehicle windshields, whichobstructs the driver’s view. To address this issue, vehicles are equipped with internal defrosters. However, at Scania, the evaluation of defroster design performancecurrently relies on time-consuming and costly physical testing. LÄS MER

  4. 18. Flame Extensions Under Ceilings

    Master-uppsats, Lunds universitet/Avdelningen för Brandteknik

    Författare :Martin Sturdy; [2023]
    Nyckelord :Flame length; curved ceiling; Technology and Engineering;

    Sammanfattning : In this Master thesis project the factors affecting flame extension under flat and curved ceilings have been investigated. An experimental campaign was carried out in Lund University’s Fire Lab using a propane gas burner and heptane pool fire in different positions and heat release rates within the setups. LÄS MER

  5. 19. Solid-state fermentation of the microalgae Scenedesmus sp. for improved conservation and protein digestibility

    Master-uppsats, Lunds universitet/Bioteknik; Lunds universitet/Bioteknik (master)

    Författare :André Nordin Fürdös; [2023]
    Nyckelord :microalgae; scenedesmus; solid-state fermentation; lactic acid fermentation; algae; feed; ensiling; silage; protein digestibility; PDCAAS; alternative protein; plantarum; ninhydrin; conservation; biotechnology; Agriculture and Food Sciences;

    Sammanfattning : As part of a research grant aimed at producing chicken feed from the novel microalgae Scenedesmus sp., called the ReMAPP project, this thesis investigates opportunities to increase the conservation potential and protein digestibility utilizing solid-state lactic acid fermentation and commercial enzyme additives. LÄS MER

  7. 20. Klimatpåverkan på ytterväggar i Stockholm ur ett fukt- och energiperspektiv

    Master-uppsats, KTH/Hållbara byggnader

    Författare :Sandra Suursööt; [2023]
    Nyckelord :;

    Sammanfattning : Det blir alltmer relevant att framtidssäkra byggnader mot klimatrisker och konstruera långsiktigt hållbara byggnader vilket bland annat framgår från olika miljöcertifieringar. I denna studie undersöks i en fallstudie hur tre vanligt förekommande väggkonstruktioner för en kontorsbyggnad presterar i ett framtida klimat för Stockholm med avseende på fuktsäkerhet och ur ett energiperspektiv. LÄS MER