Sökning: "Electric design"

Visar resultat 21 - 25 av 762 uppsatser innehållade orden Electric design.

1. 21. Barriers and Enablers for Repurposing Vehicle Components in Cross-Sector Collaborations : A Case Study of a Swedish Vehicle Manufacturer

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

   Författare :Elin Kjellberg; Violet Mirgati; [2023]
   Nyckelord :circular economy; circular business model; cross-sector collaboration; transportation industry; repurpose; circulär ekonomi; cirkulär affärsmodell; tvärsektionella samarbeten; transportindustrin; repurpose; återbruk;

   Sammanfattning : Sweden's economy is currently heavily dependent on a linear economy model, where raw material ultimately is discarded as waste. The linear approach is unsustainable for manufacturing companies in the long term. LÄS MER

3. 22. A Simulation-Based Decision Support Tool for Circularity : Remanufacturing of an Electric Machine Case Study

   Master-uppsats, KTH/Produktionsutveckling

   Författare :Mayari Pérez Tay; [2023]
   Nyckelord :Simulation; remanufacturing; circular business; electric machine;

   Sammanfattning : Over the last years, environmental concerns have grown regarding the pressure manufacturing activities exerts on natural resources. Many materials have been classified by the EU as scarce, rare earth elements found in magnets are amongst critical materials with high supply risk. LÄS MER

4. 23. Vacuum Chamber Adaptation for Low-Power Electric Propulsion Testing : Optimizing Anode Configuration and Electrical Interface for Hollow Cathode Testing, and Conceptualizing a Setup for Field Emission Electric Propulsion Testing

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

   Författare :Therese Bäckström; [2023]
   Nyckelord :Electric Propulsion; Field Emission Electric Propulsion Testing; FEEP Testing; Thruster Testing; Heaterless Hollow Cathode Testing; HHCTesting; Cathode Testing; Anode Design; Anode Configuration; Electrical Interface; Elektrisk Framdrivning; Fältjonisationsframdrivningstestning; Framdrivningstestning; Värmelös Hålkatodstestning; Katodtestning; Anoddesign; Anodkonfiguration; Elektriskt Gränssnitt;

   Sammanfattning : Electric Propulsion (EP) is widely acknowledged as a crucial technology for future space missions, offering significant propellant savings and enabling exploration of planetary missions with smaller spacecraft (s/c). For precise attitude control of these smaller spacecraft, Field Emission Electric Propulsion (FEEP) has emerged as a favorable option due to its exceptional thrust controllability. LÄS MER

5. 24. Conceptual design of the next generation gas turbines : Modelling of a hybrid electric mixed turbofan for a trainer aircraft

   Uppsats för yrkesexamina på avancerad nivå, Mälardalens universitet/Akademin för ekonomi, samhälle och teknik

   Författare :Sophia Fisher; Michael Åkerström; [2023]
   Nyckelord :Hybrid propulsion; mixed turbofan; parallel configuration; performance;

   Sammanfattning : To mitigate climate change, all sectors must contribute their part. Electric propulsion system is a promising approach to reduce emissions from the aviation industry. A major challenge is however the low energy density in today’s battery technology. LÄS MER

7. 25. Analogue Circuit for Detection of Ageing Phenomena in Electric Drives

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

   Författare :Yudong Lin; [2023]
   Nyckelord :Electric Drives; Ageing Process; Pulse-Width Modulation; Ringing Current; Peak Holder; Analogue Circuits; Elektriska drivsystem; Åldringsprocess; Pulsbreddsmodulering; Ringningar i strömmen; Toppvärdesdetektor; Analog krets;

   Sammanfattning : This master thesis presents an analogue peak holder circuit design aimed at facilitating the non-invasive inspection of the ageing process in electric drives. The ageing process of electric drives is a crucial aspect that demands accurate monitoring to ensure their long-term performance and reliability. LÄS MER