The purpose of this thesis was to make an energy survey and quantify energy flows of individual unit operations associated with the biogas production in Uppsala Vatten och Avfall AB:s biogas plant, located at Kungsängens gård. Moreover, large consumers of energy would be identified and analyzed. The objective of this energy survey was to obtain a detailed understanding of the energy use in the biogas production.The energy survey was divided into two parts: electricity and heat. Each part was treated separately and with somewhat different approach. To estimate the electricity usage during the projcet the rated power of each selected unit operation was noted and multplied with thenmeasured time of usage.

This master of science thesis is focusing on how the fault handling on hardware connected toa control unit on a Scania vehicle is working. To the hardware counts buttons levers, sensorsand CAN. The work has been concentrated upon how the fault handling is working and if it ispossible to find any new fault modes.The control unit that has been studied is called the Coordinator and is the core in Scanias threenetworks of control units. The Coordinators work is to transmit messages between the threenetworks and to process signals from buttons, levers and sensors. The values is then usedinternally or is sent to other control units on the CAN networks.

The purpose of this thesis was to examine how locally produced bioenergy may contribute to meet the climate target year 2050 in the municipality of Uppsala. The goal of reduced GHG-emissions from current 6,8 ton CO2-equivalents to 0,5 ton CO2-equivalents per capita and year, year 2050 is based on avoiding harmful penalties of an increased level of GHG in the atmosphere. By estimating available biomass in the county together with examining future technologies and emission factors for the substrates used, four possible future scenarios has been developed focusing either on electricity generation or production of biofuels. GHG-emissions of year 2050 have been calculated using the software LEAP. The conclusion is that bioenergy, depending on how it is integrated in the energy system, may reduce greenhouse gas emissions between 0.6 ton CO2-equivalents and 1.4 ton CO2-equivalents per capita or 12% to 25% compared to 5.5 ton CO2-equivalents in the reference scenario 2050. The greatest reduction is obtained if biofuels are produced in combination with energy efficient heat requirements in buildings..

The aim of this thesis was to investigate the methods used by teachers and childrens' libra­rians concerning their work with fiction at the junior school level. Based on a series of qualitative interviews and by compiling a list of short summaries of literature relevant to our thesis we wished to reflect on the manner in which the respondents see themselves in their teaching roles.We also wanted to discover what problems they had in their work and what visions they held for the future. The methods used by the teachers were mainly: reading- both aloud and individually, process-oriented writing, use of fiction in thematic studies and dramatization. The teachers' aspirations for the future included a centrally situated school library and further education in children's literature. The teachers take the needs of their pupils as a starting point and build on these needs - using many years of literary teaching experience as a foundation."Booktalks" for the children and intermediaries (teachers ...)and education in books and library systems are the childrens' librarians main literaturepedagogic methods.

Society and technology develop together in interaction processes. Because of the development of information technology, the Industrial society has been left behind in favor of a society where information is the key production factor, i.e. the Information society. In the Information society, social functions and processes are organized in networks. These networks integrate geographically separate markets to parts of a complex global economic system.

Given that the oil prices have risen and the environmental regulations has become more stringent, the interest in operating efficiency has increased. The project has investigated the possibility of producing electricity from waste heat generated in the diesel process. One technique to utilize and convert energy into electricity is the ORC (Organic Rankine Cycle). This process is based on the Rankine process (the steam process), the difference from the traditional Rankine process is that instead of water as a working medium, an organic substance is used. The main component used in the process is a evaporator, a turbine, a condenser and a pump.

The purpose of this essay is to describe how Boverkets Byggregler has affected the cost ofnewly built houses from 2003 to 2012, to Boverkets Vision 2025. The purpose is also to findagent-principal relations in the construction sector.When investing in an energy efficient house the operating costs are reduced compared to aconventional house. But due to the lower operating costs, the investment cost rises. In thisstudy, we find out if it is economically viable to invest in an energy efficient house comparedto a conventional house from the customer's perspective.The study's approach has been qualitatively where we in collaboration with Derome Hus hadaccess to three conventional reference houses and a passive house and data that was necessaryto conduct viability assessments on houses. We conducted five interviews with people fromDeromekoncernen and Varbergs kommun.The calculation methods we have used in this study are present value method, annuity methodand a sensitivity analysis.

- En granskning av Kairos Future. I Säffle sparar kommunen pengar genom att släcka var tredje gatlykta utanför centrum och tänker flytta delar av gymnasieskolan till Åmål. Samtidigt har kommunen lagt flera hundra tusen på ett pågående visionsarbete i samarbete med konsultföretaget Kairos Future..

The aim of the study is to gain a deeper understanding of how young people's current identity is affected by their criminal background. We also want to understand the impact of resources in these young people?s social networks (that is their social capital) on their life course and formation and reformation of their identity. The theoretical frameworks used (as a tool to be able to analyze the empirical data) are theories of stigma, identity and social capital. The empirical study was conducted using semi-structured interviews that focused on questions about the life-story of informants.

The use of social media has increased considerably in recent years and has also caused some problems. It has been notable cases in the media where employees adversely criticized their employer on social networks, which subsequently led to the dismissal of the employee. The purpose of this study is to investigate an employee's right to express themselves about their employers in various forms but the main focus will be on social networks. The study investigates employees on both private and public sectors.Employees have a duty of loyalty to their employer, which means that they must be loyal to their employer and not deliberately harm them. The reason that employed comment his employer on social networks has its basis in that they also have freedom of speech and it is raised in such a case, a collision between their rights and responsibilities as an employee.The employees also hold a critique right entitling them to publicly criticize the employer and its activities.

Active work to increase the efficiency of energy use is taking place in Sweden and throughout all of Europe. Electricity is an important part in our society?s energy system which means that the electrical grid operators and associated therewith has a central role in this work. Monitoring and controlling the electrical grids are managed from the distribution system operator?s DC, dispatch center.The aim of this report is to examine how the operations in a typical DC on the Swedish electricity distribution network will look like in five to ten years.

This thesis analyzes the expected profitability in land based wind power plants. The expected profitability is calculated on the basis of a wind power project in Vartofta, Falköping. The information required to calculate the expected outcome is then concentrated to this project, which is in this thesis called project Näs. In project Näs they plan to build three wind power plants, with each an effect of 2 MWh. These wind power plants are very capital intensive investments with a long and uncertain payback time.

South Africa has been among the top ten wine producing countries for at least 20 years. Even though the land under grapevines is decreasing globally it is still increasing in Africa. The awareness of environment has strengthen the last years and South African producers experience a high demand of environmentally friendly produced wine, especially from the European market. This demand was the driving force behind the development of the world unique sustainability certification, Integrated Production of Wine (IPW), which is inscribed in the South African legislation. What makes this certification unique is that consumers can trace their product all the way back to the farming practices owing to the identity number specified on the IPW Integrity & Sustainability seal on certified products.

Management consulting firms are an important part of the knowledge economy and they capitalize on the analytical ability and knowledge of their employees. Much research have been made on large consulting firms and their management of knowledge, but little is known about how small consultancies manage their knowledge. Even less is known about the management of knowledge in small consultancies specialized in change management. These firms rely solely on senior consultants and focus on the human aspect of organizational development. This thesis aims to show how these firms manage their knowledge and also provide an understanding of why.

In this thesis a method for evaluating investments in small scale hydro power is presented. An analysis of the future position that small scale hydro production will have on the Nordic electricity market is also carried out. This is done by an inventory of technology and economic and environmental aspects. The inventory is also a guide as to how the project should be implemented.Hydrolyzer is the name of the Excel tool developed to evaluate investments. The tool requests input data from the user and then evaluates the investment and generates a sensitivity analysis.