Sökning: "propulsion unit"

Visar resultat 6 - 10 av 19 uppsatser innehållade orden propulsion unit.

  1. 6. Greenhouse Gas Emissions Reduction in the Heavy-Duty Transport Sector - A Case Study of Renewable Energy Carriers in Sweden

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Karolina André; William Degerstedt; [2021]
    Nyckelord :Battery electric vehicle; Biofuels; Greenhouse gas; Heavy-duty vehicles; LCA; Renewable energy carriers; Renewable fuels; TCO; Transport sector; Well-to-wheel; Technology and Engineering;

    Sammanfattning : Den svenska transportsektorn står för ungefär en tredjedel av landets totala utsläpp av växthusgaser och släppte 2019 ut 16,4 Mt CO2-ekvivalenter. Av dessa står den tunga vägtrafiken för cirka 20 % och är efter passagerarfordonen den största källan till utsläpp av växthusgaser inom sektorn. LÄS MER

  3. 7. Electrically powered manoeuvring of water jets

    Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Industriell teknik

    Författare :Joel Engström; [2021]
    Nyckelord :Bachelor thesis; Thesis; Mechanical engineering; Uppsala University; Design; Product development; Marine Propulsion; Electrical Actuator; Water Jets; Water Jet Propulsion; Water Jet Manouvering; Steer-by-wire; Marine Technology; Examensarbete; Maskinteknik; Kandidatuppsats; Uppsala Universitet; Konstruktion; Design; Produktutveckling; Vattenjet; vattenjetaggregat; Elektrisk Manövrering; Steer-by-wire; Marinteknik;

    Sammanfattning : A shift towards electric and hybrid propulsion within the marine sector create new challenges for conventional water jet units manoeuvred by hydraulic systems. The high efficiency in high speed water jet crafts benefit from being powered by electricity but will be compromised by constantly running hydraulic pumps, draining available electric capacity on-board. LÄS MER

  4. 8. Closed Loop Control of PMSM Motor : Field Oriented Control Using Hall Sensors

    Master-uppsats, Linköpings universitet/Fordonssystem

    Författare :Shawon Kumar Baral; [2021]
    Nyckelord :BLDC; PMSM; 6 step; FOC; Clarke; Motor; Park; PWM; Rotor; SVPWM;

    Sammanfattning : Fossil-fuel vehicles are one of the main causes of CO2 emissions nowadays. As we are moving toward cleaner environment electrification of vehicles are becoming more and more popular. With the environment in mind, the recent improvement in battery technology and electronics has drawn a lot of attention to Brushless DC or BLDC  motors. LÄS MER

  5. 9. Data Driven Anomaly Control Detection for Railway Propulsion Control Systems

    Magister-uppsats, Mälardalens högskola/Inbyggda system

    Författare :Dzenita Skulj; Ajna Hodzic; [2020]
    Nyckelord :;

    Sammanfattning : The popularity of railway transportation has been on the rise over the past decades, as it has been able to provide safe, reliable, and highly available service. The main challenge within this domain is to reduce the costs of preventive maintenance and improve operational efficiency. LÄS MER

  7. 10. FEASIBILITY ANALYSIS OF THE DRIVE TRAIN ELECTRIFICATION FOR A RESCUE BOAT

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Claudia Andruetto; [2019]
    Nyckelord :electric boat; rescue sector; boating; drive train modelling; water jet; fuel cells; batteries; hybrid electric storage; sustainability; CO2 emissions; life cycle assessment;

    Sammanfattning : Progressing constraints on green house gas emissions lead to a sustainability trend,which greatly a↵ects the transport sector. Nowadays, companies show increasing interest indeveloping sustainable solutions. LÄS MER