At the Division of Electricity at UppsalaUniversitythere are ongoing researches, including a research concerning turbo generators.Turbo generators produce a large share of electricity in the world; however they are costly mainly due to the fact that the cooling and ventilation that are needed to eliminate the excess heat from the generators are expensive. Turbo generators work with high efficiency and in this project, the main task is to simulate a generator while taking into account that the generator must be designed against self-oscillation, centrifugal force, exhaustion and heat. The turbo generator must be simulated without being too expensive and complicated.In this project, the dimensions of the turbo generator depend on the efficiency of it, and where the losses are in the generator. Furthermore, the optimum values need to be chosen with the help of the ACE simulation program. The report begins with an introduction describing the project followed by a task description that is dealing with the project.

There are several energy systems in the Swedish society and to ensure the comfort and health of the citizens it is of importance that the different energy systems are functioning properly. District heating is one of these energy systems and many household depend only on district heating to warm up their homes. District heating is dependent on several processes where every step needs to function in order to deliver the produced heat to the end consumer. Previous studies have investigated the distribution of district heating and how to make customers choose district heating as their heating method. The supply of fuel to the district heating plant has not been studied as much, even though it is an important part of the whole system. This thesis is a part of the project NORD-STAR (Nordic Strategic Adaption Research), which has focused on climate adaption in the Nordic countries.

Uppsala County has ambitious environmental aims for the planned residential area inÖstra Sala backe. In this thesis different energy sources have been evaluated todetermine which system that would be most favorable given currently availableinformation about the project. Planned energy usage has been divided into tap waterheating, space heating and power. Three base case scenarios were made with districtheating, small scale bio fuel and heat pump. Solar power and solar heating were thensimulated and the production from the two could individually be deducted from theenergy need in the base cases, constituting 9 different scenarios.

In today?s society a large focus is put on energy systems and how our energy systems are built up. In order to make sure that we in the future still can enjoy the living standards that we are used to today, Sweden and EU have made a number of decisions on making our energy system more energy efficient and consequently reduce the usage of energy resources. By 2020 the European Union should have reduced its energy consumption by 20 % compared to 1990?s level, and by 2050, 50%.

The freedom of establishment is a fundamental right on the internal market which enables companies to take up and pursue activity in other member states, ?host states?, in a non discriminatory way. In situations where a company wishes to use the right to establish in a host state, complications will be discovered since the member states are applying different principles for deciding the nationality of a company. Since the Treaty of the Function of the European Union recognize both principles, and both of the legal areas company law and European international private law lack harmonization regarding companies wishing to perform such a transaction, the situation today brings the possibility that such a company could be covered by the legal system of several member states, or maybe no legal system at all.The Court of Justice of the European Union has through case law contributed to make the scope of the freedom of establishment a little bit clearer but there are still difficulties regarding situations when a company wishes to transfer its seat to another member state with a change of nationality. Today?s measures, for example the SE-company, is not enough to satisfy the companies wishing to transfer their seat to another member state.

Buildings worldwide account for 40 % of the total energy use. Climate change is of increasing importance, but few are willing to reduce their standard of living or get a higher cost for the change. Energy efficiency of existing buildings gives the greatest benefit economically and environmentally. The real estate company Klövern AB manages 46 properties in Karlstad. Heating is the major cost of the total operating costs of real estate. Rising energy prices increase the need for Klövern AB to improve energy efficiency and to investigate alternative sources of heat.

22 informanter med olika hemspråk fick i uppgift att skriva en uppsats i form av ettbrev på svenska. Dessa uppsatser översattes mening för mening till respektive språkav andra språkligt kunniga informanter. Sedan översatte de språkkunnigainformanterna uppsatsernas meningar ord för ord tillbaka till svenska.Dessa språkligt kunniga informanter, som var mig behjälpliga, är allayrkesverksamma och flera av dem arbetar som lärare. Alla dessa använder detsvenska språket i sitt yrkesliv och har mycket goda kunskaper i sina respektivehemspråk.Syftet med detta var att se prepositionsbruket på svenska hos dessa invandradeinformanter och också se prepositionsbruket på respektive hemspråk.Vid granskning av annorlunda prepositionsbruk framkom att hemspråket påverkaranvändandet av svenska prepositioner. Det är vanligt att man utelämnar prepositioneri svenskt prepositionsbruk och det är också vanligt att man använderdirektöversättning från det egna hemspråket.

Transfer pricing innebär i grund och botten att den vinst som företagsgrupper får ska fördelas på ett korrekt sätt mellan deländer där gruppen har aktörer.Armlängdsprincipen är den internationellt accepterade tillvägagångssättet att fastställa priser när närstående företag handlar medvarandra. Principen innebär att företagen ska handla med varandra precis som om de vore oberoende företag, påarmlängdsavstånd.Immateriella tillgångar har en rad egenskaper som gör dem speciellt svårvärderade ur armlängdsperspektiv. Marknadsvärdetbehöver inte vara samma som värdet för ägaren. I regel finns det heller inga transaktioner som innefattar immateriella tillgångarvilket gör det svårt att få en lämplig armlängdsvärdering med hjälp av de tre traditionella metoderna.De två vinstbaserade metoderna (Profit Split Method och Transactional Net Margin Method) är de mest lämpliga för atttillgodose armlängdsprincipen. Profit Split Method:s kanske största fördel är att man för att använda metoden inte behöver hajämförbara transaktioner till hands.

The first part of this essay is about a single-family house that we have planned and projected. Thesecond part is a deeper study in ways to further insulate windows when they are not in use.In the first part the building?s design and its most important construction elements are described.The planning of all major installations (heating, domestic water, ventilation, sanitation, electricity)are reported so that one can in principle start construction of the house. In addition there arecalculations done on the building?s energy management.The result is a two stored house angled toward the south.

District heating covers most of the residential areas and industries in the twoneighbouring Swedish municipalities Nyköping and Oxelösund. In Nyköping,Vattenfall AB Värme produces heat in a bio-fuelled CHP plant. In Oxelösund,waste heat and use of waste gases from the steel production at SSABOxelösund is the basis in the district heating system.This report examines the environmental consequences of a connection betweenthe two district heating systems. A broad system approach is used and the focusis on environmental effects in the system.A system analysis has been performed on the result of simulations of differentheat and electricity production alternatives. The alternatives simulated wereone where Vattenfall Nyköping covers the base load in the joint district heatingsystem and two where the power plant at SSAB Oxelösund supplies the heatbase load.The conclusion in this report is that the consequences of connecting the twodistrict heating systems can be both positive and negative, depending onsystem boundaries and on the environmental focus.

Since the spring 2003 the tenant-owner home association the Terrace in Upplands Väsby municipality lies straight under the approach route to Arlanda Airport?s new third landing chute. Noise levels of over 70 dB have been measured in the area, which exceeds National Board of Housing?s, values for traffic noise at a terrace in connection to housing. By using the method of hedonisk pricing the essay tries to find out if there exists a willingness to pay to reduce the noise in the area.

District heating covers around 80 % of the heating demand in apartment buildings and 10 % in single-family homes in Sweden. In the year 2010 the total input of energy to the Swedish district heating grids was about 70 TWh, which corresponds to 11 % of the total energy input to the whole energy system in the country. Through the combined production of heat and power the CHP-plants often reaches an efficiency of 90 % from energy in the fuel to produced heat and power. In order to keep the efficiency high it is important for the owners of the plant to have good knowledge about the plants performance at different operation points. Strängnäs Energi AB initiated this diploma work together with FVB Sverige ab in order to come up with a program for short term planning of the production of heat and power at the company´s CHP-plant.The work consists of three main parts.

Energy efficiency is important both to reduce costs and to reduce greenhouse gas emissions in the atmosphere. Reducing costs will also help maintain business competitiveness.Scania in Södertälje is a company where the optimization of energy use is an ongoing and continual process. One area with potential to make energy and cost savings is the effectiveness of the ventilation systems in offices and industrial premises at Scania. During the summer months an increased demand for cooling occurs, leading to increased ventilation and a peak in district cooling system usage. Sorptive cooling is a technology where the supplied air is cooled by applying external heat.

The thermal response of a borehole field is often described by non?dimensional response factors called gfunctions.The g?function was firstly generated as a numerical solution based on SBM (Superposition BoreholeModel). An analytical approach, the FLS (Finite Line Source), is also accepted for generating the g?function. In thiswork the potential to numerically produce g?functions is studied for circular borehole fields using the commercialsoftware COMSOL.

In April 1986 an accident occurred at the nuclear power station in Chernobyl. Radionuclides were spread all over Europe including Sweden. Today there are still measurable concentrations of 137Cs in the different ecosystems in the contaminated parts of Sweden. The wild boar is the second most popular game in Sweden and today the Swedish population consumes more wild boar meat than ever. As the wild boar population increases the wild boars are moving further north towards the contaminated areas, which creates an interest to study the state of 137Cs in wild boars in these areas. Muscle samples from wild boars collected during 2010-2013 were analyzed based on 137Cs content.