Sökning: "Replacement ratio"

Visar resultat 1 - 5 av 43 uppsatser innehållade orden Replacement ratio.

  1. 1. Taking Flight Towards a Greener Future: Steps Airlines Can Take to Reduce Emissions

    Kandidat-uppsats, Lunds universitet/Trafikflyghögskolan

    Författare :Rabin Kronold; Mikael Nyström; [2023]
    Nyckelord :Sustainability; Aviation; Management; Emissions; Carbon footprint; Ground and aircraft operation; Fuel consumption; Contrails; Aircraft-Induced Clouds; Greenhouse gas emissions; Sustainable Aviation Fuel; FLYL01; Technology and Engineering;

    Sammanfattning : Background: For decades, aviation has been an important part of society and with its growth comes the increased environmental impact and the challenge to reduce this adversary effect and move towards sustainability. Objective: Find out how airlines can reduce their emissions and become more sustainable. LÄS MER

  3. 2. Use of Polyvinyl chloride (PVC) as an aggregate for concrete

    Master-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Habib Loubani; [2023]
    Nyckelord :Polyvinyl chloride; PVC aggregates; natural aggregate concrete; PVC fine aggregates concrete; PVC coarse aggregates concrete;

    Sammanfattning : This study investigates the use of polyvinyl chloride (PVC) as a partial substitute of natural aggregates in concrete as fine and coarse aggregates. Concrete was prepared by replacing natural aggregates with equal volume of grinded PVC, with volume replacement ratio as 10%, 50% for fine and then 10% and 50% for coarse aggregates. LÄS MER

  4. 3. Computational Analysis of Spray Deflector Designs

    Master-uppsats, KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Författare :Osman Gyokhan Ali; [2023]
    Nyckelord :Planing Hulls; Spray Deflector; Hull Modification; Computational fluid dynamics CFD ; resistance; trim angle; heave; CD-adapco Star CCM ; Numerical Ventilation; Phase Replacement; Modified HRIC Scheme; Volume Fraction Source Term; Reynolds averaged Navier-Stokes RANS ; Volume of Fluid VOF ; SST K-Omega Turbulence Modelling; Höghastighetshantverk; modelldesign; spraydeflektor;

    Sammanfattning : Planing hull is a common hull design concept which decreases the resistance while speed is increasing for a specific speed range. It is also suitable for hull modifications to achieve higher efficiency. Spray deflector is a promising hull modification which offers extra resistance decreasing and less vertical acceleration for planing hulls. LÄS MER

  5. 4. Bostäderna som aldrig byggdes - hur parkeringskrav påverkar nybyggnation i Stockholm

    Master-uppsats, KTH/Skolan för arkitektur och samhällsbyggnad (ABE)

    Författare :Alice Söderqvist; [2023]
    Nyckelord :Parking ratio; replacement parking; housing construction; sustainable urban development; new construction of housing; new construction on parking land; densification; Stockholm; Parkeringstal; p-tal; ersättningsparkering; bostadsbyggnad; hållbar stadsutveckling; Stockholm; nybyggnation av bostäder; nybyggnation på parkeringsmark; förtätning;

    Sammanfattning : Bostadsbristen är ett växande problem i Sveriges storstadsregioner, och har pekats ut som en av Stockholms största utmaningar. Befolkningsmängden ökar snabbt i huvudstaden och den nybyggnation som sker motsvarar inte efterfrågan, vilket orsakat en utveckling med bostadsbrist, höga boendekostnader, längre bostadsköer och ökad trångboddhet som följd. LÄS MER

  7. 5. Development of a Semisolid Baobab-based Protein Snack

    Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)

    Författare :David Bergman; Olle Wikner; [2022]
    Nyckelord :Baobab; Protein; Plant protein; Oat; Pea; Rheology; Development; Innovation; PDCAAS; Gel; Protein solubility; Food technology; Agriculture and Food Sciences;

    Sammanfattning : This thesis was done in collaboration with the department of Food Technology at LTH, Aventure AB, and Arwa Foodtech AB. The aim of the project was to develop the base for a baobab based, spoonable protein snack, comparable to quarg but free from ingredients of animal origin. LÄS MER