Reducing the CO2-pollution, resulting from the combustion of fossil coal for energyproduction, is important to affect environmental changes. One way to achieve a reductionis to use the oxy-fuel technology. The technology uses O2 and re-circulated flue gasduring the combustion which results in a flue gas mainly consisting of CO2. The flue gascould then be compressed and stored without environmental effects. A problem thatfollows from the compression is the risk of acidification in sensitive parts of the process.Acidification can occur because of reactions following from the contact of condensedwater and sulphur- and nitrogen-oxides which are also present in the flue gas.This report compiles and evaluates the basis of a scientific unit with the purpose ofexploring the possibilities of extracting impurities of SOx and NOx from the flue gases.The dimensions of the unit are based on basic conditions, defined for an existing oxy-fuelprocess at Chalmers, and on the results of computer modelling.

In Uppsala CHP Plant, there are six pressure reducing valves to reduce the pressure from 15 to 3 bars, before six absorption heat pumps. During the process the energy is conserved but losses occur in form of exergy. The aim of this thesis is to reduce the losses of exergy. This can be done by letting turbines replace the pressure reducing valves.In this thesis an investigation has been done of the conditions today, the conditions after the change from pressure reducing valves to turbines and a comparison of three different types of turbine solutions. The three examined solutions are one turbine, several helical screw expanders and several small turbines in parallel with asynchronous generators.The six absorption heat pumps have been divided into two groups; one group of four and one group of two absorption heat pumps.

Since 2004, wind power has had the largest installation of new capacity compared to other energy sources in Sweden. Accommodating new wind power may require strengthening or rebuilding of the existing grid in areas where the grid is already loaded to maximum capacity. This master thesis examine the possibility of a new 400/130 kV substation in Yttermalung, Sweden, with a connection to the two neighboring regional grids in Dalarna and Värmland owned by Fortum. This substation would provide a new connection point to the Swedish transmission system as well as an interconnection of the two, currently separated, regional grids. Different expansion scenarios where a substation with and without series compensation or a phase shifting transformer (PST) to control active power flow were studied.

The purpose of this Master?s thesis is to examine the portrayals of class in four Swedish contemporary novels that have been mentioned as working class literature in the literary public sphere. During the 20th century, society has undergone vast changes due to globalization and technology development. The rise in standards of living for most people in the Western societies has led to changed consumption patterns. In consequence, there has been increased emphasis given to cultural rather than materialist explanations of social stratification.

The aim of this study was to investigate a health intervention at a Swedish telecom company, with regards to behavioral, cognitive and somatic stress, experienced health, and absence due to illness. A further aim was to investigate the employees' perceptions regarding the health intervention. Questionnaires were collected from 139 employees at the customer service departments.Results indicated that the health activity bowling to some extent could predict lower behavioral stress. However, the most important predictors of stress and perceived health were lack of meaningfulness and quantitative demands. Lack of meaningfulness was also a predictor of absence due to illness.

Bakgrund: Bemanningsbranschen har vuxit väldigt mycket sedan 1990-talets början, då en avreglering av arbetsförmedlingsmonopolet skedde.Syfte: Att få en överblick över bemanningsbranschens utveckling samt att se vad den har för ställning idag på den informationella arbetsmarknaden.Utgångspunkter och upplägg: Uppsatsen börjar med en bakgrund och översikt över bemanningsbranschens utveckling sedan tidigt 1990-tal och framåt. Som teoretiska utgångs-punkter används begrepp som nätverkssamhälle, informationell arbetsmarknad, flexibilitet och individualisering. Huvudsaklig metod är fyra semistrukturella intervjuer som gjorts med fyra kvinnliga anställda på fyra olika bemanningsföretag. De teoretiska utgångspunkterna har sedan kopplats till empirin för analys.Slutsatser: Bemanningsbranschen är väl anpassad till den informationella arbetsmarknaden. Den har en stadig och stabil ställning, finns till för att den behövs och är här för att stanna..

In this study I have compared two systems of handling TMR, self-propelled/ self loading mixers and conventional towed mixers, what has been investigated is the time for filling, mixing and feeding TMR as well as maintenance and fuel consumption. The background of this study is the structural rationalization within the Swedish milk production that has put focus on efficiency and reducing of costs. Forage and labour are the two biggest costs in milk production today. The study has been performed by visiting three farms and with a stopwatch measured the times for filling, mixing and feeding TMR. At the time for the visits, the users have been interviewed regarding maintenance and fuel consumption. They have also had an opportunity to give comments of how they experience the mixers. The result of the study after processing is that the average stock in the study can save 74000 SEK a year by reducing time for filling, mixing and feeding TMR to cows with a self propelled/ self loading mixer . The conclusion I can make of this study is that it?s not the size of the stock that decides whether it?s interesting to invest in a self propelled/ self loading mixer, but the presumptions on the farms, for instance forage logistics and mechanical equipment..

This degree project was conducted in collaboration with Husqvarna AB, the headquartersof which are located in Jönköping. The aim was to further develop the filler cap found onmore or less the whole of the company?s range of chain saws, in order to make it moreuser friendly.The present filler cap is not easy to open and close, especially when wearing gloves, andunder difficult conditions, which creates problems and prolongs filling time.On the basis of market surveys, different prototypes and tests, we have created anergonomically improved cap of a new shape, which can be moved in the axial direction,thus making filling easier..

The Swedish National Labour Market Administration wishes to acquire further knowledge about how the evaluation process of vocational rehabilitation at the employment service operates as a part of the quality assurance of this activity. The primary task for vocational rehabilitation at the employment service is to investigate the work capacity of unemployed people, to give them increased knowledge and better understanding of their own capacity concerning work or education. The aim of this study was to survey the evaluation process of vocational rehabilitation at the employment service in Sweden. Data were collected through telephone interviews with 15 occupational therapists employed at the employment service, who were working with vocational rehabilitation. The result shows that the investigation of work capacity can take place in different environments and that the space of time for an investigation can vary.

Chapter 1 defines the aim of the project and gives a general orientation about ground heat extractors. In chapter 2 physical processes that could be expected to be involved in the heat transport around a ground heat exchanger are discussed. It is shown from a literature study what amount of moisture transport due to thermal gradients there could be expected in a ground heat exchanger. The conclusion is drawn that the moisture gradient (Sr) is of same magnitude as the driving temperature gradient (°C). At the expected amount of increased moisture around the pipes the moisture transport could be considered to have a little effect on the brine temperature.

Hur handskas vi med den arbetsrelaterade stressen och finns det faktorer som kan minska den? I denna studie undersöks upplevelsen av stress och socialt stöd i forskarmiljö. Undersökningens deltagare består av 45 forskare i Lund och Malmö som besvarat en enkät. Enkäten lämnades ut våren 2003 och 2005. Syftet var att undersöka om fritidsintresse och socialt stöd kan minska stressen som kan uppkomma i samband med arbetet.

The EU market is being deregulated, which sees Swedish farmers that have traditionally been governed by different support systems being forced to adapt to a free market system and having to deal with the concept of supply and demand. The farming sector has during the past several years experienced harder conditions and the deregulation of the market has directly affected farmers. The need for entrepreneurs and that way of thinking has been identified (McElwee, 2006). Swedish farmers are neither familiar with a free market or being required to think in an entrepreneurial manner, does this therefore implicate that Swedish farmers are not entrepreneurs?LRF is a national farmers? organization in Sweden and functions as a support for Swedish farmers.

Bullying is a significant workplace problem, a fact highlighted both by companies, government and social science. The purpose of this master thesis was to examine if workplace bullying is a result of group processes. This is a theory-based master thesis. A search of literature on bullying, mobbing and harassment was done in a database called ELIN, Electronic Library Information Navigator, connected to Lund University and 414 articles were singled out. The summary of the articles were studied and according to a list of criteria, I choose to study some of the articles in more depth.

This essay considers the new prison in Kalmar, which was built 1852 and replaced the former prison in the castle of Kalmar. In the forts the conditions were awful and the interms lived together in large rooms. With the new reform that took place in Sweden, with the so-called Philadelphiasystem, the concept was to isolate the prisoner one by one in smaller rooms. The idea was to give them a religious ground so they could get themselves a self-reflection and a conscience. It was a new system for the personnel to control the internals and the order in prison..

The third most common conifer in Sweden is Pinus contorta (lodgepole pine). It originates from the western part of North America and was brought here in the end of the 1920s. The lodgepole pine is today allowed for commercial plantations in central and northern Sweden, excluding high altitude locations. Since 1979 only plantations with scientific purpose are allowed in south-central and south Sweden. This document is focused on how lodgepole pine manage perform compared with Pinus sylvestris (Scots pine) in the southernmost part of Sweden, Götaland. The idea came from the fact that the Swedish government is evaluating a notification from the National Forest Agency that suggests lodgepole pine to be allowed for commercial plantation even in southern Sweden.