Sökning: "commercial ship"

Visar resultat 1 - 5 av 21 uppsatser innehållade orden commercial ship.

  1. 1. Köldmedieläckage i kylanläggningar : En utredning om alternativa metoder för att detektera läckage

    Uppsats för yrkesexamina på grundnivå, Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Författare :Christian Westerberg; Henric Gustavsson; [2021]
    Nyckelord :Kylteknik; kylanläggning; läckage; läckagedetektering; köldmedium;

    Sammanfattning : Commercial refrigerant industry is one of the biggest contributing factors toglobal warming according to a study by Mota-Babiloni et al. (2015). Studies have shown that emissions of fluorinated greenhouse gases' effect on global warming can increase from 1.3% (2004) to 7. LÄS MER

  3. 2. Performance Prediction Program for Wind-Assisted Cargo Ships

    Master-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Martina Reche Vilanova; [2020]
    Nyckelord :;

    Sammanfattning : Due to the accelerating need for decarbonization in the shipping sector, wind-assisted cargo shipsare able to play a key role in achieving the IMO 2050 targets on reducing the total annual GHGemissions from international shipping by at least 50%. The aim of this Master’s Thesis project is todevelop a Performance Prediction Program for wind-assisted cargo ships to contribute knowledgeon the performance of this technology. LÄS MER

  4. 3. Evaluation of drag estimation methods for ship hulls

    Master-uppsats, KTH/Mekanik

    Författare :Hampus Tober; [2020]
    Nyckelord :;

    Sammanfattning : This study aims to evaluate to which degree CFD can complement traditional towing-tank experiments, and to develop a computationally cheap and robust methodology for these type of simulations. Two radically different surface ship hulls were chosen for the trials: a capesize bulk carrier and a fast displacement hull. LÄS MER

  5. 4. Putting a New Spin on Shipping

    Master-uppsats, Lunds universitet/Internationella miljöinstitutet

    Författare :David Newman; [2020]
    Nyckelord :wind ship propulsion; Flettner rotor; human factors; technological innovation system; operational experience; Technology and Engineering; Social Sciences; Earth and Environmental Sciences;

    Sammanfattning : This thesis concerns Flettner rotors, a wind propulsion technology for commercial shipping which has recently gained momentum due to its ability to reduce fuel consumption, and consequently CO2 emissions, in a polluting sector of industry. Flettner rotors are able to reduce average fuel consumption by up to 20% and can be operated on a wide variety of ship types and sizes through both retrofit and installations on new builds. LÄS MER

  7. 5. Strength assessment of rig foundations for a sailing car carrier

    Master-uppsats, KTH/Lättkonstruktioner

    Författare :Alfred Rapaport; [2020]
    Nyckelord :Naval Architecture; Solid Mechanics; Finite Element Analysis; Concept development; Sailing; Skeppsbyggnad; Hållfasthetslära; Finita elementmetoden; Konceptutveckling; Segling;

    Sammanfattning : The wPCC project (wind powered car carrier) is carried out by Wallenius Marine, KTH Royal Institute of Technology and SSPA Sweden. By developing a car carrier mainly propelled by the wind, the emissions are estimated to be reduced by up to 90 %. This thesis deals with the structural aspects of the design. LÄS MER