Sökning: "300 350"
Visar resultat 21 - 25 av 32 uppsatser innehållade orden 300 350.
21. Global Warming Potential of a Smartphone : Using Life Cycle Assessment Methodology
Master-uppsats, KTH/Industriell ekologiSammanfattning : The global development and usage of smartphones are rapidly increasing. Further, the high capacity and functionality of these devices indicate high technological manufacturing processes and complex supply chains. Thus it is of interest to investigate the potential environmental impacts of a smartphone, from a life cycle perspective. LÄS MER
22. Torkventilation vid kartongtillverkning : En fallstudie på Fiskeby Board AB
Master-uppsats, Energisystem; Tekniska högskolanSammanfattning : Pappers- och massaindustrin stod år 2010 för 52 procent av den svenska industrins energianvändning, vilket motsvarade 76 TWh. Detta gör branschen intressant ur ett energieffektiviseringsperspektiv då små åtgärder kan leda till stora besparingar. Fiskeby Board AB är ett företag som tillverkar kartong baserad på returfiber. LÄS MER
23. Illumination properties and energy savings of a solar fiber optic lighting system balanced by artificial lights
Uppsats för yrkesexamina på avancerad nivå, Fasta tillståndets fysikSammanfattning : A solar fiber optic lighting system, SP3 from the Swedish company Parans Solar Lighting AB, has been installed in a study area/corridor test site. A collector is tracking the sun during daytime, focusing the direct sun irradiance via Fresnel lenses into optical fibers, which guide the solar light into the building. LÄS MER
24. Characterization and utilization of agroforestryresidues as energy source in Brazil
Uppsats för yrkesexamina på avancerad nivå, KTH/Skolan för kemivetenskap (CHE)Sammanfattning : Brazil is very much rich in agriculture and forestry. The agro industry occupies an area of 28840726 ha. The more important crops are sugarcane (7080920 ha), rice (289030 ha), wheat (1853220 ha), coconut (283205 ha), cassava (1894460 ha), corn (13767400 ha) and grass (140000 ha). These crops generated 597 million tons of residues. LÄS MER
25. Solvärme på Utö
Kandidat-uppsats, KTH/EnergiteknikSammanfattning : The guest harbor on Utö, Utö Gästhamn, is currently using electricity for heating all of the water used in the showers and taps. Because of the large amount of visitors, especially during the summer months, the hot water usage gets very high and that is also the case for the electrical bills. LÄS MER