Sökning: "hydrogen charging"

Visar resultat 1 - 5 av 29 uppsatser innehållade orden hydrogen charging.

1. 1. Hydrogen storage systems : Methodology and model development for hydrogen storage systems performance evaluation based on a transient thermodynamic approach

   Master-uppsats, Mälardalens universitet/Akademin för ekonomi, samhälle och teknik

   Författare :Kreshnik Margaritari; [2023]
   Nyckelord :Hydrogen; Hydrogen storage system; Hydrogen filling process; Hydrogen storage system operation; Hydrogen storage system design; Hydrogen fast filling; Hydrogen tank modelling;

   Sammanfattning : The overall performance of a hydrogen storage system can be affected by various parameters, such as operation and design parameters, but also by the state of the hydrogen contained inside the storage tanks. In this work, a methodology is developed to evaluate the state of the hydrogen during the filling process and its impact on the overall system performance under variable operation conditions and design parameters. LÄS MER

3. 2. Metals for energy storage : For hydrogen and power generation

   Master-uppsats, Linköpings universitet/Konstruktionsmaterial

   Författare :Oscar Torsteinsrud; Mattias Reijm; [2023]
   Nyckelord :Metals; Energy Storage; Round Trip Efficiency; Aluminum; Boron; Magnesium; Silicon; Zinc;

   Sammanfattning : With an increase in energy demand and a transition from conventional fossil-driven energy generation, the world is facing a major challenge. This transition implies more intermittent energy sources whose reliance varies widely with time. To deal with this challenge, energy storage is one part of the solution. LÄS MER

4. 3. EV charging approaches in remote regions – Analysis of capacity, cost and logistics

   Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

   Författare :Farhaan Ahamed; Juan Ordonez Marin; [2023]
   Nyckelord :Technology and Engineering;

   Sammanfattning : With countries across the world finding pathways to counter CO2 emissions, sustainable mobility has become a critical topic for leaders, policymakers, and industries. The development of Battery Electric Vehicles (BEV’s) is seen as an important and effective way through which reliance on fossil fuels and thereby related CO2 emissions can be reduced. LÄS MER

5. 4. Design of a test rig for in situ hydrogen charging of rolling element bearings under load

   Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Maskinelement

   Författare :Oskar Moström; [2023]
   Nyckelord :tribology; hydrogen embrittlement; mechanical engineering; rolling element bearing; machine elements; design; mechanical design; CAD; mechanical construction; construction; material science; Tribologie; Wasserstoffversprödung; Maschinenbau; Wälzlager; Maschinenelemente; Design; Maschinenkonstruktion; CAD; mechanischer Bau; Konstruktion; Materialwissenschaft; tribologi; väteförsprödning; maskinteknik; rullningselementlager; maskinelement; design; mekanisk design; CAD; mekanisk konstruktion; konstruktion; materialvetenskap; lager;

   Sammanfattning : This Master's thesis is part of the Hydrogen Embrittlement in Rolling element bearings project (HERo) initiated at Luleå University of Technology (LTU), with the primary objective of determining critical hydrogen concentrations in bearing steel for rolling element bearings. The specific aim of this Master's thesis is to design a test rig that enables the investigation of the effects of hydrogen embrittlement on rolling element bearings under load. LÄS MER

7. 5. Decarbonisation of service vessels in offshore wind power through power-to-X self-sufficiency

   Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Miljö- och energisystem

   Författare :Clemens Kellander; Ludvig Fredriksson; [2023]
   Nyckelord :Alternative fuels; compressed hydrogen; battery; production; energy storage; operation and maintenance; O M; offshore; wind power; service vessel; crew transfer vessel; CTV; service operations vessel; SOV; decarbonisation; global warming potential; life cycle; Technology and Engineering;

   Sammanfattning : This report examines the possibilities of decarbonising operation & maintenance vessels for a prospective floating offshore wind power park at the Utsira Nord site in Norway, through self-sufficient energy carrier production utilizing power-to-X-solutions. Possible alternative fuels are identified as compressed hydrogen, batteries, liquid hydrogen, ammonia, methanol, and biofuels, out of which the former two are the subject for thorough investigation in this report. LÄS MER