Volvo Construction Equipment AB Components Division i Eskilstuna är mitt inne i ett omorganisationsarbete där fabriken byggs om från funktionsverkstad till flödesorienterade grupper detta för att effektivt möta den växande orderingången. När gruppernas värdeflöden tydligtgjorts återstår ett intensivt arbete med att optimera ledtider, lagernivåer och produkter i arbete med mera. Ett kraftfullt verktyg för att stötta detta arbete är diskret händelsestyrd (DE) simulering. Det har genomförts flertalet DE simuleringar tidigare på företaget, då främst av konsulter. I den nya fabriken finns en önskan om att utföra detta arbete själv.

This report is of technical character and treats how to plan a small building in Borlänge, Sweden.The technical components that have been treated in the report are the construction, foundation,installations and thermic abilities of the house. In addition to planning this house the report alsocontains a part that deepens in net zero energy buildings. The purpose of the report is toinvestigate if the house in Borlänge can be constructed to meet net zero energy buildingdemands.Energy efficient houses such as passive- and net zero energy houses are showing more frequenton the market in Sweden. Ongoing climate changes and growing consciousness about theenvironment in society have contributed to that the environment is a well discussed topic. Toconsume small amounts of energy and at the same time produce local energy is thereforesomething that lies in the future and future houses.

Sewer trenches usually contain material with a higher hydraulic conductivity then the adjacent soil. Thus they can serve as paths of preferential flow in a polluted area. Wastewater from factories can also leak from wastewater pipes and pollute the soil in the sewer trenches.The purpose of this project was to investigate pollutions in sewer trenches and in sewer pipes in the industrial area of Köpmanholmen, 20 km south of Örnsköldsvik in the north of Sweden. To make an estimation concerning the potential of transport of pollutions in sewer trenches, hydrological calculations were performed.Leakage to any greater extent did not seem to be a problem in the area. This is the case both for the concrete and the wooden pipes that have served as factory wastewater pipes.

Volvo Personvagnar är ett av de starkaste varumärkena i bilindustrin, med en lång och stolt historia av världsledande innovationer. Fabriken i Skövde tillverkar motorer i både bensin- och dieselvarianter. I framtiden planerar Volvo att införa nya typer av motorer med gruppnamnet VEA, Volvo Environmental Architecture. Dessa nya motorer kommer att vara standard i alla nya Volvobilar, men tillverkning av de gamla modellerna kommer att finnas kvar För att förstå hur de nya transportsystemen i fabriken kommer att fungera tillsammans med de gamla transportsystemen och för att veta om de transportsystemen kan hantera framtidens krav krävs en simuleringsmodell.Under våren 2011 gjordes ett liknande projekt, då en simuleringsmodell av transportsystemen skapades. Men eftersom modellen var för komplicerad och krävde mycket simuleringstid beslutades att en ny modell ska byggas för att kunna hantera optimering.Det finns tre huvudsakliga transportsystem, automatiskt styrda fordon (AGV), elektrisk hängbana (EHB) och manuella transporter med truckar.

In modern society in terms of economics and environmental impact, it is important to ensure that a company is as energy efficient as possible to reduce the amount of energy used. About 10 TWh of electricity used annually to pump drives in Swedish industry. Therefore, pumping system has great potential for energy savings.The objective of this report was to determine how much energy and money that can be saved with the insertion of variable speed drive to six pumps on Bleach plant 4 in Skutskär Mill. The work was performed with electrical measurements during one week, analysis of pump curves and the compilation of production data over a year.The results show that four of these six pumps were profitable and yielded an annual saving of 1172 MWh of electricity and 560 000 SEK. With an economic lifetime of 10 years and a discount rate of 6.8% the final result for the entire life-cycle savings became 3 355 000 SEK.

This thesis calculates and compares the values of improved environmental quality due to future possible investment alternatives in biogas production facilities at Käppalaförbundets Reningsverk (Käppala Sewage Treatment Works) in an attempt to determine which alternative yields the highest such value. Käppala faces three investment alternatives for the usage of biogas. The alternatives are production of vehicle fuel, district heating and thirdly, heat and power production. Estimates of the value of environmental change are calculated for each of the three investment alternatives, and these estimates are then compared. The environmental change in question is the change in discharge levels of carbon dioxide (CO2), nitrogen oxides (NOx), sulphur dioxide (SO2) and particle matter.

My questions at issue for this report has it´s beginning in the growing problems of thenegative effects of burning fossile fuels and the rapidly growing energyprices.1. Is it possible to design a micro scale powerplant?2. Is it economically interesting for a potential customer to by such a product?The aim with this report is therefor, with the help of design work and calculations, to answerthese questions and to create a platform for building a fully functional micro scale powerplant.The material used in the report is mostly product catalogs from various industries but alsostudy course littrature about steam engines.The result of the report is that it is fully possible to design a fully functional micro scalepower plant.

Produktionen och distributionen av fjärrvärme i Luleå kommun sköts av två företag, LuleKraft AB och Luleå Energi AB. Under 2011 utökades samarbetet företagen emellan, med bland annat gemensam driftspersonal. Detta ger förutsättning för ett mer anpassat och optimerat produktionssätt. Med detta som bakgrund skapades en modell över fjärrvärmenätet och tillhörande anläggningar, för att kunna skapa riktilinjer för effektiv produktion vid olika driftförhållanden. Viktiga komponenter för systemet är? Lulekraft - ett kraftvärmeverk vilket eldar processgaser från SSAB och olja för att producera fjärrvärme och el? Fjärrvärmenätet - 42 mil långa ledningar förser i princip hela Luleå kommun med fjärrvärme? Hetvattencentraler - när LuleKraft inte räcker till för att täcka fjärrvärmebehovet finns möjligheten att använda dessa där bränslet är processgaser, olja, pellets eller elFjärrvärmenätet och hetvattencentralerna ägs av Luleå Energi AB men hela systemets drift sköts av personal på LuleKraft.

This report aims to examine the design of a passive house. The design addresses the selection ofmaterial, sizing and selection of both building services systems and building technical features suchas load-bearing framework and moisture control. Interior layout is designed for a family of twoadults and one child.A big part of the report is devoted to an in-depth comparison of three different wall constructions ofpassive house standard. The structures that have been compared are a lightweight timber structure, aheavier concrete structure and a sandwich wall of the brand Weber Leca. The report covers variousaspects such as air flow, wall thickness, the risks associated with the construction, U-value, thermalbridges, power consumption, price, and assembly costs.

In Scandinavia, capercaillie are often associated with pine trees (Pinus sylvestris) in winter, with pine needles as the main diet. Few dietary studies have been conducted in Sweden and winter diet is subject to little debate. The interesting thing is that this "pine specialist? is also found in spruce (Picea abies) forest habitats where pine is scarce or unavailable. In many studies outside Sweden (primarily Central Europe) spruce is regularly observed in the winter diet, but I have found no reports on the selection of the diet in spruce forest areas in Sweden.

Bringing back the nutrients from the city to the country is becoming increasingly important, as the world?s stores of nutrients get more exhausted. Sewage sludge is an unapplied resource, rich in plant nutrients, which could replace parts of the commercial fertilizers used in Sweden today. Sewage sludge may contain large amounts of pathogens, such as Campylobacter and Salmonella, why use can cause severe spreading of infections, both to animals and humans. These pathogens have the ability to survive for a long time in soil and water and therefore some sort of treatment of the sludge is recommended before use.

This master thesis is performed at Scania Axles and Gearboxes, a production plant located in Södertälje. Within the plant axles, gearboxes as well as central gears are assembled from components to finished products. All production is conducted on production lines, with a pre-determined rate, which is supplied with components by the material handling department. Since the production quantity and the mix of product variants produced on the production line is customer order-based, the number and type of components needed for production as well as appropriate staffing within the material handling department is difficult to predict. Scania is currently using a number of different resource planning tools for each material handling-department within Axles and Gearboxes to visualize the workload within the departments.

Botanist Kjell-Arne Olsson inventoried the plant fen ragwort Senecio paludosus 1983 in Scania andfound a big number of locations within Biosphere Reserve Kristianstad Vattenrike. In 2012, a reinventoryof the 1983 survey was carried out to study whether there has been any change in the fenragwort population in Kristianstad Vattenrike since the last inventory. The results show that therehas been no overall change in the number of fen ragwort in Kristianstad Vattenrike, on certainpremises they have increased in number while in others they have fallen. However, the inventoryshows that almost half of the locations with fen ragwort have disappeared during the same period.The main reason for this is that fen ragwort did not manage to competitive with other vegetation,taking in consideration this has been smaller premises with young plants. In addition to competitionother factors such as prolonged high water, grazing and caterpillars from Tyria jacobaeaecontributed to the decrease.

The aim of this study was to investigate if the botanical composition of haylage affects pH, dry matter content and microbial composition of the faeces in horse and pig and ileal environment in pigs. Two separate studies were conducted where pigs and horses were fed two diets containing haylages with different botanical composition. The first haylage was from a tilled land dominated by timothy and meadow fescue and the other haylage came from a meadowland with a large inclusion of dandelion, 25 % and common couch. The dry matter content (70.8 % and 73.0 % respectively) and the pH-value (5.7) were similar in both feeds. The first study was made as a three-periods switch-back study with 7 Standardbred horses. In the first and the third period, 7 and 9 days long respectively, the diet consisted of the haylage from the tilled land, oats, sugar beet pulp, soy bean oil meal, lucerne pellets and brewers yeast.

In this Bachelor thesis I am going to look at attitudes towards political violence in a small town in Sweden in the 1920s. The town I have picked for this study is Kalmar situated on the east coast of Sweden. This study is a micro historic case study. The specific case is a strike at the city?s water and gas plants for higher salary.