Uppsatser om electric

785 uppsatser · sida 25 av 53

Nätanslutning av vindkraft

vindkraftsbranschens aktörers perspektiv på nätanslutning och tariffer

Examensarbete · SLU

… sector in Sweden. However, it still represents only a small part of the total electricity production, about 0.7%. In order to create good conditions and to facilitate the establishment of wind power in Sweden, the government has for example, created a national centre for wind …

Medvind eller motvind?

granskning av fem tillståndsansökningar från vindkraftprojektering i Sverige

Examensarbete · SLU

… has decided that Wind power should have a higher contribution to the electricity generation in Sweden. Their goal is that, by 2015, the yearly production by Wind power should generate 10 TWh. In year of 2006, the 760 wind mills in Sweden generated only 0,936 TWh. Despite good …

Power supply monitoring for wireless sensor platforms

Examensarbete, avancerad nivå · Luleå

… well as status information from the PSU. Present power storage devices, like electric double-layer capacitors (EDLCs) and batteries, have become more and more common as their characteristics have developed. The EDLCs are popular due to their ability to charge and discharge …

Excel-baserad beräkning och dokumentation av distansskyddsinställningar

Examensarbete, avancerad nivå · Chalmers tekniska högskola

… work carried out at the Department of Energy and Environment atthe Division of Electric Power Engineering. The master thesis work describes the theoryof distance protection relaying in 130 kV meshed distribution networks. The main aim ofthe thesis was to construct an Excel …

Spotpriset på El

Kan dess förändringar förklaras av funda-mentala faktorer?

Magisteruppsats · Högskolan i Jönköping

Denna uppsats undersöker vilka faktorer som påverkar förändringar i elspotpriset på Nord Pool. Avsikten är att resultatet skall ligga till grund för en prisuppskattningsmodell för Lunds Energikoncernen AB. Faktorerna bestämdes genom en förstudie där viktig litteratur om …

Framtiden för gamla Habo ullspinneri

Examensarbete, grundnivå · Högskolan i Jönköping

… moved to the location it has today, near Hökån in Habo, three years later. The electricity that the machines in the industry needed was extracted from the small river that is placed under the building. In 1960 there was a fire and the result became the end of the industrial …

Utrustning för automatmontering av ackumulator

Magisteruppsats · Högskolan i Halmstad

… under the load of a spring which creates an oil pressure with the help of an electric motor used for actuating the clutch. At Haldex difficulties has been experienced regarding the assembly of the accumulator parts due to the small tolerances between the piston and the hole of …

Leverantörsrelationer på Volvo Aero Corporation

En modell för val av lämplig strategi för leverantörshantering

Examensarbete, grundnivå · Linköpings universitet

… är en stor leverantör till de tre stora flygmotortillverkarna, General Electric, Pratt & Whitney och Rolls Royce. Komponenter som företaget producerar används i över 80 % av dagens kommersiella motorer. Nya motorprogram, där Volvo Aero eftersträvar att ha en mer aktiv roll …

Energieffektivisering av luftningssteget på Käppalaverket, Lidingö

Examensarbete, avancerad nivå · Uppsala universitet

… treatment plant in Lidingö, Stockholm. A preceding thesis, where all electricity consumption was mapped, showed that the aeration in the biological treatment is the single largest consumer in the plant, and it is therefore of interest to reduce this cost. The oxygen control …

Kartläggning av energianvändning under byggfasen vid nyproduktion av flerbostadshus

Examensarbete, avancerad nivå · Uppsala universitet

… of production of blocks of flats at the building site. The main part of the electricity that is used during the production of apartment buildings goes into the heating of portacabins and illumination of the building during the construction phase. These together use about 70 % of …

Elektromagnetisk skärmning genom mekanisk omkonstruktion

Masteruppsats · KTH

… safety margin. This problem can be solved by reducing the radiation from the electric components in the product or by reducing of fix base frame. In this degree thesis the focus is only on mechanical redesign. The main problems right now depends on the long distance between the …

Stabilisering av process

Masteruppsats · KTH

Calesco Foil AB is a manufacturer of thin flexible circuits for heating or electric conduction. The plant is located in Kolbäck, Sweden. One of the company’s products, the conducting polymer pasta is in present situation unpredictable. Unpredictable in the way that the same type …

Torkat bioavfall som jordförbättringsmedel

Examensarbete, avancerad nivå · Uppsala universitet

… declaration of contents, including the nutrient levels, C/N ratio, pH and the electrical conductivity of the dried biowaste, was constructed and a germination test was done to make sure that the material did not inhibit sprouting. Further on a method was developed to study the …