The demand for biogas as vehicle fuel has risen sharply and there is a great need for increased production. A possible addition of vehicle gas can be produced by upgrading landfill gas which is formed by degradation of organic waste. This thesis investigates the potential of producing vehicle fuel from landfill gas in the region of Biogas Öst.In 2008, an amount of 32 million Nm3 landfill gas was extracted in the region. This level can be maintained for another ten years if the efficiency of gas extraction is improved. The annual production will decrease with time since landfills aren?t allowed to receive more organic waste.

In Sweden we need more lambs during March to June. I decided to calculate on a spring lamb production, because to many of the Swedish lambs go to slaughter in the autumn. I counted on 1000 ewes which have 2000 lambs each year, 200 of these lambs stays on the farm and replace old ewes. The buildings are 3600 square meters. I have counted on two different sorts of buildings, the first one is a shed, the second one is three polytunnel sheephouses.

The electric vehicle market has potential to contribute to Sweden?s national goal to have a fossil fuel independent transport sector by 2030. However, the market answers to a lot of challenges making it difficult for the market to fully reach its potential. The volume of electric vehicles has seen a steady increase during the last year (2012), although many of these vehicles are mostly for PR purposes or bought by the public sector that wants to lead by example. Still, barriers in the form of high purchase costs, an anxiety for the limited battery capacity and the lack of standardisation are some of the problems that the market is struggling to solve.

At Volvo Cars Torslanda's paint shop there is a requirement to in a fast and effective way get an overview of the plants capacity. Therefore a capacity template was constructed as a tool for the engineers at Volvo several years ago. This template has during the years become complicated and outdated. Thus this thesis work will resort as a new capacity template, built from scratch. The new template has been built up based on requirements from Volvo and the concept of OEE (Overall Equipment Effectiveness).

This thesis describes the developmentof a device called "Oil Separator"which is used for washing vehicles andparticularly car washing. The devicedeveloped for Mr. Car Bilvård AB inUppsala, the company's work involvespassenger transport and courierservices. The company needs anexternal device that meets theenvironmental standards to wash theirown cars in the premises without theneed to modify or reconstruct on thepremises ground as the premises is ona leased contract.Work began with a preliminary study onthe literatures that describes boththe function and structure ofdesigning the device. A few interviewswith other car wash companies had beenimplemented, and some measurements.After collection of the necessaryinformation the specifications ofcustomer requirement was presented .With these requirements a fewconcepts was generated and weighedusing the Pugh matrix for conceptsselection for further development.The final concept was furtherdeveloped and a design has beenpresented.

Studiens syfte är att se ifall det är möjligt att under en kortare tid bli en bättre a-vistaläsare. För att underso?ka detta har jag under en åttaveckorsperiod övat a-vista 15 minuter per dag, med hjälp av en bok just för a-vistaläsning. Ett urval av dessa övningstillfällen har jag videofilmat. Jag har också använt mig av loggbok för att dokumentera mina upplevelser av min egen process.

The electric vehicle market has potential to contribute to Sweden?s national goal to have a fossil fuel independent transport sector by 2030. However, the market answers to a lot of challenges making it difficult for the market to fully reach its potential. The volume of electric vehicles has seen a steady increase during the last year (2012), although many of these vehicles are mostly for PR purposes or bought by the public sector that wants to lead by example. Still, barriers in the form of high purchase costs, an anxiety for the limited battery capacity and the lack of standardisation are some of the problems that the market is struggling to solve.

This thesis concerns partial discharges in stator windings and the possibility of analyzing data using statistical methods. Partial discharges, or PD, are a physical phenomenon in which discharges occur locally due to large electric fields. PD can occur in or adjacent to the insulation of stator windings and causes breakdown of the insulating materials. PD measurement can provide an idea of how widespread the PD activity is. A technique to measure and analyze PD that has become very popular over the last few decades is phase resolved PD patterns.

Saab är ett varumärke som delas av två olika företag, försvars- och säkerhetskoncernen SaabAB och personbilstillverkaren Saab Automobile, idag ägt av NEVS, National Electric VehicleSweden AB. Här finns en potentiell problematik då två separata företag delar sammavarumärkesnamn och kan ha olika strategier för hur varumärkesarbetet bör fortgå. Syftet meduppsatsen är att beskriva hur varumärket Saab uppfattas idag vilket har undersökts genomfokusgrupper och en enkätstudie. Studien utgår från konsumenters associationer och resultatetvisar att Svenskt Tradition utgör en viktig del av varumärkesbilden. Överlag har Saab en bred,homogen och positiv varumärkesbild där varumärket Saab representerar båda de bolag somdelar varumärkesnamnet.

When driving hard and cornering on a circuit good control of a car?s roll is desired, so the car reaches steady state quickly but yet in a controlled fashion. This control is mainly given by the combination of the cars springs, shock absorbers and anti-roll bars.The aim of this report is to investigate, analyze and measure a Porsche Boxster?s turn in behaviour and roll dynamics as well as with the aid of simulation results give suggestions for improvement of the previous mentioned combination.Two different simulations were made, one based on a simpler model that was based on an evolved version of the bicycle model in Matlab and one was more advanced model in the simulation software rFactor. Measurements of the real car was made using a GPS-based measurement system.

The electric vehicle market has potential to contribute to Sweden?s national goal to have a fossil fuel independent transport sector by 2030. However, the market answers to a lot of challenges making it difficult for the market to fully reach its potential. The volume of electric vehicles has seen a steady increase during the last year (2012), although many of these vehicles are mostly for PR purposes or bought by the public sector that wants to lead by example. Still, barriers in the form of high purchase costs, an anxiety for the limited battery capacity and the lack of standardisation are some of the problems that the market is struggling to solve.

The electric vehicle market has potential to contribute to Sweden?s national goal to have a fossil fuel independent transport sector by 2030. However, the market answers to a lot of challenges making it difficult for the market to fully reach its potential. The volume of electric vehicles has seen a steady increase during the last year (2012), although many of these vehicles are mostly for PR purposes or bought by the public sector that wants to lead by example. Still, barriers in the form of high purchase costs, an anxiety for the limited battery capacity and the lack of standardisation are some of the problems that the market is struggling to solve.

Extended Producer Responsibility (ERP) is a form of product take-back regulation that requires the producers to manage their products at the end of life. By internalising the products? entire life cycle costs into the market price the ultimate objective of such regulations is to reduce the environmental burden from the products. This Master´s thesis seeks to examine if the total life cycle cost of a product actually is borne by the producer, and if not, predict who will then take this cost. This is done by analysing the market for take-back activities in three different categories of products; electrical and electronic equipment, cars and wind power stations.

SammanfattningSyftet med denna uppsats är att undersöka huruvida det genom en övergång från erfarenhetsbaserade arbetssätt till användning av vedertagna optimeringsmetoder finns möjlighet till kostnadsbesparingar för ingående lager i O-fabriken på Volvo Cars motorfabrik i Skövde (SkEP).SkEP dimensionerar idag sina lagernivåer på erfarenhetsmässiga grunder, vilket enligt teorierna inte är helt optimalt ur ett kostnadsperspektiv. Det antas därför att det kan finnas en stor förbättringspotential om SkEP istället börjar använda optimeringsmetoder för att beräkna lager- och orderstorlekar. SkEP upplever i dagsläget inte några större problem, däremot villde veta hur pass bra deras lagernivåer egentligen är. Motiveringen till varför just O-fabriken är intressant är att cylinderhuvudena som tillverkas där är de enda komponenterna som påverkas av den aggregerade slutkundsefterfrågan och därför även kan tillämpas som typexempel vid optimering av andra komponentlager.Metoden som används i uppsatsen är i första hand kvalitativ primärdata i form av intervjuer och observationer samt till viss del sekundärdata, i form av kvantitativ information från SkEPs interna datasystem, CDEC, och en teoretisk studie i ämnet lagerstyrning.Uppsatsen börjar med en teoretisk genomgång av ämnet, vilken till största del bygger på professor Stig-Arne Mattssons publikationer. Där tas de beräkningsmetoder som används i arbetet upp, så som Kapitalbindning, EOQ, SERV2 och beräkning av säkerhetslager.

In this Thesis the possibilities of designing a larger building that is very energy efficient in the sense that it would not need a conventional heating system are discussed. Solar radiation transmitted through the windows, internal heat from occupants, lamps and electric appliances inside the building and heat recovered from the ventilation system then have to be sufficient for the heating of the building. This study is of general interest since the property company, Akademiska Hus, plans to use this study as a first step in determining if this technique could be used in the future and thus be worth further investments. A building without a conventional heating system of the size investigated in this project has not yet been built.The energy needed for the heating of the building was simulated using VIP+.The conclusions from the study are that it is possible to build large buildings without any conventional heating system. This could be achieved in many different ways, for example by lowering the inside temperature or by using better windows and heat recovery system with higher efficiency.