Sökning: "Transient design"

Visar resultat 1 - 5 av 132 uppsatser innehållade orden Transient design.

1. 1. SAKTA NER ELLER SKROLLA VIDARE? En studie av användarna på TikTok om sin upplevelse av korta medieformat och dess påverkan

   Kandidat-uppsats, Göteborgs universitet/Institutionen för journalistik, medier och kommunikation

   Författare :Alana Cornéer; [2024-03-04]
   Nyckelord :TikTok; koncentrationsförmåga; uppmärksamhet; korta medieformat;

   Sammanfattning : This study delves into the user experiences and perceptions of short media formats on TikTok and their impact on users' attention spans. Drawing from theoretical frameworks such as attention theory, media ecology, and uses and gratifications theory, the study conducted qualitative interviews with six participants to delve deeper into their experiences. LÄS MER

3. 2. Aerodynamics simulations of Scania trucks using OpenFOAM

   Master-uppsats, KTH/Teknisk mekanik

   Författare :Ziyi Liu; [2024]
   Nyckelord :Heavy-duty truck; Computational fluid dynamics; Air drag; OpenFOAM;

   Sammanfattning : In the field of heavy-duty vehicles, fuel efficiency and environmental protection are factors that need to be focused on, while the aerodynamic drag generated during vehicle travelling is one of the most influential aspects. This thesis delves into the aerodynamic simulation of Scania trucks using the open-source Computational Fluid Dynamics (CFD) tool, OpenFOAM v2206. LÄS MER

4. 3. Conjugate Heat Transfer Analysis of HPGP Thruster

   Master-uppsats, Luleå tekniska universitet/Rymdteknik

   Författare :Lisa Svensson; [2024]
   Nyckelord :aerospace; HPGP; ECAPS; ANSYS; conjugate heat transfer; thruster; space;

   Sammanfattning : This master's thesis was conducted in collaboration with ECAPS, where a conjugate heat transfer analysis on their High Performance Green Propulsion (HPGP) 22N thruster was done. ECAPS is a Swedish propulsion company specializing in green propulsion. They develop thrusters for spacecraft orbit and attitude control, utilizing the propellant LMP-103S. LÄS MER

5. 4. 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

7. 5. A process to assess fossil-free transport transition pathways and develop a sustainability roadmap for transport purchasers

   Master-uppsats, Lunds universitet/Internationella miljöinstitutet

   Författare :Lauren Brach; [2023]
   Nyckelord :Roadmap; corporate carbon strategy; decarbonisation; transportation; fossil-free; Earth and Environmental Sciences;

   Sammanfattning : Most (93%) of the greenhouse gas emissions in the transport sector come from road traffic in Sweden which includes passenger and freight transport activity (Trafikverket, 2022). The aim of this thesis was to understand pathways that transport purchasers can pursue to reach the fossil-free transportation goals from manufacturing plant to customer and to develop a process for assessing a market and developing a roadmap for achieving fossil-free transportation. LÄS MER