Sökning: "lifetime"
Visar resultat 21 - 25 av 1214 uppsatser innehållade ordet lifetime.
21. Test rig for evaluation of protective coating against molten aluminum
Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)Sammanfattning : Today, many methods test the lifetime of coatings, but none focus on testing protective coatingsin a non-oxidizing environment. Hence, this master thesis developed a method to test the life-time of a protective coating against molten aluminum. LÄS MER
22. Återbruk kontra återvinning av litiumjonbatterier
Kandidat-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknikSammanfattning : I Sverige läggs stort fokus på omställningen till ett hållbart och klimatneutralt samhälle, där avkarbonisering och elektrifiering av transportsektorn anses avgörande för att minska utsläpp av växthusgaser. En storskalig batteriproduktion i Sverige och i Europa medför nya problem kring hållbarhetsaspekter gällande utvinning av råvara som exempelvis litium, kobolt och nickel. LÄS MER
23. Lifetime CostEffectiveness of Constructed Wetland and Rain Garden Facilities in Relation to Expected Treatment Performance
Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurserSammanfattning : The purpose of this thesis is to investigate the cost effectiveness of two different stormwater control measure (SCM) facilities, namely a constructed wetland in Boden and a rain garden in Gothenburg (both Sweden), in relation to treatment efficiency and contributing catchment area. The study approach involved collection of data, construction, and maintenance activities with their respective costs, for the two stormwater control measures from commercial and literature data. LÄS MER
24. Velocity Control of a Mobile Charger in a Wireless Rechargeable Sensor Network
Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)Sammanfattning : Wireless sensor networks (WSN) are one of the most rapidly evolving technical areas right now. They can be used in a lot of different applications, environmental monitoring and health applications being two examples. The sensors can be placed in hazardous and remote environments since there is no need for cabling or manual maintenance. LÄS MER
25. EXPLORING THE POTENTIAL CONTRIBUTIONS OF USING OLD WIND FARMS AREAS TO LIMIT THE ELECTRICAL GENERATION DEFICIT IN SE4 SWEDEN - A REPOWERING INVESTIGATION
Master-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : In the southern part of Sweden, specifically in price zone SE4, there is an increasing cost of electricity and a contemporary supply deficit. This research aims to elaborate on the deficit in electrical generation to consumption in SE4. The found values indicate a 42% unmet demand, equaling 5.152 TWh annually. LÄS MER