Sökning: "Particle contamination"
Visar resultat 1 - 5 av 26 uppsatser innehållade orden Particle contamination.
1. From Ocean to Table: Microplastic contamination in Nordic salts
Kandidat-uppsats, Lunds universitet/Centrum för miljö- och klimatvetenskap (CEC)Sammanfattning : Large amounts of plastic in the oceans originate from mismanaged plastic waste, and microplastics (MPs) are the most common type of waste. They can be found in household products, such as sea salts. Therefore, monitoring pollution levels is essential to improve marine health and food safety. LÄS MER
2. Plume-Spacecraft Interaction Analysis : Study on the Plume Effects of Hall-Effect Thrusters (HET) and High-Efficiency Multistage Plasma Thrusters (HEMPT).
Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : Plume-spacecraft interactions play an important role in the performance and integrity of spacecraft during their missions in space. The study encompasses a thruster’s plume simulation and its impact on spacecraft geometries to understand and predict the effects and consequences of the impingement on spacecraft surfaces, such as erosion, contamination, forces, and torques. LÄS MER
3. Kan underhållsrutiner effektiviseras utifrån oljekvalité?
Uppsats för yrkesexamina på grundnivå, Mittuniversitetet/Institutionen för naturvetenskap, design och hållbar utveckling (2023-)Sammanfattning : En undersökning av vindturbiners hydraulolja med avseende på partikelinnehåll har genomförts. Med syftet att öka tillgängligheten på Statkrafts vindturbiner genom ändrade underhållsrutiner. Målsättningen har varit att minska mängden partiklar och hitta en lösning för förbättrat underhåll rörande hydrauloljan. LÄS MER
4. Method development for the use of Smoothed-particle hydrodynamics simulations for vehicle soiling analysis
Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningsläraSammanfattning : An increasing amount of sensors is being placed in cars in order to monitor their vicinities, which performance is highly dependant on the driving conditions, in which weather has a big role, and thus water contamination is a topic that will increase its importance in the future of the car industry. One of these sources of contamination is self-soiling: how cars get dirty because of their own tires. LÄS MER
5. Six Sigma for quality assurance of Lithium-ion batteries in the cell assembly process : A DMAIC field study at Northvolt
Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för ekonomi, teknik, konst och samhälleSammanfattning : Lack of technical cleanliness and particle contaminations in Lithium-ion battery manufacturing affect the performance of batteries which are a risk for the safety and quality of the product. Therefore, part of the manufacturing process occurs inside the Clean and Dry room area to maintain technical cleanliness. LÄS MER