Sökning: "drilling unit"
Visar resultat 1 - 5 av 19 uppsatser innehållade orden drilling unit.
1. Hydrogeological and economic analysis of a groundwater-based water supply system in rural Nepal
Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Väg- och vattenbyggnad (CI); Lunds universitet/Teknisk geologiSammanfattning : Access to safe drinking water and sanitation is a given standard and considered as basic human rights in urban areas and industrialized countries. However, 40 % of the world's population living in rural areas in developing countries lack access to safe drinking water. LÄS MER
2. 3D Geological Modelling of the Subsurface Adjacent to Cementa’s Quarry in Skövde, Sweden
Master-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : Limestone is one of the main components of cement production. Limestone has been quarried in Skövde, Sweden, since the end of 19th century and Cementa AB has been operating the quarry since 1973. Aside from limestone, there are also Alum shale of Cambrian age, mudstones as well as bentonite layers of Ordovician age present in the quarry. LÄS MER
3. Variations in depositional environments of the Paleogene Firkanten Formation across Adventdalen, from Operafjellet to Breinosa
Master-uppsats, Göteborgs universitet/Institutionen för geovetenskaperSammanfattning : The lowermost Paleogene clastic infill of the Central Spitsbergen Tertiary Basin, the coal bearing Firkanten Formation, has been the subject of study for researchers in the past but little focus has been on the northeast edge of the basin until now. Due to the economic potential of the coal seams in the formation, the Norwegian mining company, Store Norske Spitsbergen Grubekompani (SNSG), has for several years conducted core drilling in key locations in basin, and for decades, they have given an access to their core material to researchers. LÄS MER
4. Research and Testing of an Electromechanical solution for Vibration Assisted Drilling of Aerospace Materials
Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/SolcellsteknikSammanfattning : This thesis considers vibration drilling in aerospace materials. The tolerances of the drilled holes in aerospace industry are very low since hole quality is an important factor. Conventional methods of drilling create long ribbon formed chips that increases the heat formation and decreases the hole quality. LÄS MER
5. Energieffektivisernade åtgärder med fokus på värmesystem : Installation av bergvärme och dess lönsamhet
Uppsats för yrkesexamina på grundnivå, Umeå universitet/Institutionen för tillämpad fysik och elektronikSammanfattning : På grund av höga uppvärmningskostnader vill Lycksele kommun utreda de ekonomiska aspekterna av att investera i bergvärme till en fastighet som huserar vård- och omsorgsverksamhet. Fastigheten är belägen utanför Lycksele tätort vilket utesluter fjärrvärme som ett alternativ till uppvärmning. LÄS MER