Sökning: "elfordon"

Visar resultat 21 - 25 av 181 uppsatser innehållade ordet elfordon.

1. 21. Pulse Charging of Li-ion Batteries for Enhanced Life Performance

   Master-uppsats, KTH/Kemiteknik

   Författare :Josefin Strandberg; [2023]
   Nyckelord :Li-ion battery; Pulse charging; Cyclic aging; Capacity fade; Internal resistance; Battery impedance; Litiumjonbatteri; Pulsad laddning; Cyklisk åldring; Kapacitetsminskning; Inre resistans; Batteriimpedans;

   Sammanfattning : Det överhängande behovet av att minska utsläppen av växthusgaser för att uppfylla Parisavtalet har väckt ett ökat intresse för elektrifiering som en strategi för att mildra klimatförändringarna. Litiumjonbatterier spelar en central roll vid elektrifiering och har framträtt som det primära alternativet för batteridrivna elfordon. LÄS MER

3. 22. Fast charging of electrical vehicles with help from battery energy storage systems : A study of how batteries can lower the power peaks for fast charging of electrical vehicles in Stockholm

   M1-uppsats, KTH/Hälsoinformatik och logistik

   Författare :Erik Wikström; [2023]
   Nyckelord :Electric vehicle; fast charging; direct current charging; battery energy storage system; Elfordon; snabbladdning; likströmsladdning; batterienergilagringssystem;

   Sammanfattning : To enable fast charging of electric vehicles in Stockholm or sites where the electrical energy is limited and the number of chargeable vehicles increases, there is a need to investigate new solutions to comply with the future demand. The goal of this project is to investigate what the conditions are in Stockholm today and investigate what is needed to enable fast chargers in Stockholm city. LÄS MER

4. 23. Life Cycle Assessment of Lightweight Electric Motorbikes : Case Study - RIDECAKE

   Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

   Författare :Savitri Visvanathan Englert; [2023]
   Nyckelord :nvironmental impact; two-wheel motorcycle; lithium-ion battery; transportation; BEV Battery Electric Vehicle ; Life Cycle Assessment LCA ; miljöpåverkan; våhjulig motorcykel; litiumjonbatteri; transport; BEV Batteri elektriskt fordon ; Life Cycle Assessment LCA ;

   Sammanfattning : The electric vehicle segments of companies have broadened, and their sales have increased in the past decade. The electric motorcycle sector is growing fast, with improved technology on electric powertrains, increased ranges, charging speeds, and infrastructure. LÄS MER

5. 24. Analysis on copper, lead and tin removal in steel scrap sorting : Technologies involved, environmental considerations and economic aspects

   Master-uppsats, KTH/Materialvetenskap

   Författare :Giada Cavaliere; [2023]
   Nyckelord :Copper; Tin; Lead; Steel Scrap Sorting; Ballistic Separation; Dilution; Revenue Modelling; CO2 emissions Modelling; Tenn; Bly; Sortering av stålskrot; Ballistisk separation; Utspädning; lntäktsmodellering; CO2-utsläppsmodellering;

   Sammanfattning : With the urgency of cutting down CO2 emissions to reach climate neutrality by 2050, decarbonization of the steel industry is on the European Commission's agenda. Steelmaking accounts for 10 % of anthropogenic CO2 emissions and it is one of the most challenging sectors to decarbonize. LÄS MER

7. 25. Supervised Algorithm for Predictive Maintenance

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

   Författare :Haida Lu; [2023]
   Nyckelord :Long short-term memory; Predictive maintenance; Remaining useful life; Embedded Artificial Intelligence; Långt korttidsminne; förebyggande underhåll; återstående livslängd; inbyggd artificiell intelligens;

   Sammanfattning : Predictive maintenance plays a crucial role in preventing unexpected equipment failures and maintaining assets in good operating conditions in various systems. One such scenario where predictive maintenance has been widely used is in battery management systems for electronic vehicles based on lithium batteries, where the risk of failure can be reduced by predicting the remaining useful life of the lithium battery. LÄS MER