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1403 Uppsatser om Consumption choices - Sida 25 av 94

Utvärdering och uppdatering av typkurvor

The purpose of this thesis is to evaluate and update load curves for Fortum Distribution AB. Theload curve method is a tool used to forecast the strain of an electric grid. The method is based oncustomer annual energy consumption, outdoors temperature as well as customer category. Theload curve method was established by Svenska Elverksföreningen at the start of the nineties andfocus was put on standardizing annual energyconsumption, in order to make the method usableacross the nation. Present consumption patterns have changed since the original load curves wereproduced, which leads to a need to update the load curves.The work began with an update of present load curves according to recommendation taken fromanother earlier thesis.

Utvärdering av ett silotorksystem för spannmål utrustat med omrörare :

The aim of this study was to evaluate the stir drying method, for drying of grain during Swedish conditions. The evaluation was done during the harvest year 2004, on four farms with stir driers. The driers were evaluated for their energy consumption, design, stirring effectiveness and how much time the farmer has to spend on every tonne of grain. A comparison was also done with conventional Swedish high temperature driers. Totaly six batches of grain from stir driers were examined, mostly winter wheat, but also barley and wheat.

Småskalig vattenkraft vid Olofsfors bruksmuseum : Med faunapassage

In Sweden there are 1894 small-scale hydropower plants in operation, which together generate 4.3 TWh of electricity per year according to Swedish hydropower compound (SVKF, 2011). This corresponds to the annual consumption of about 860,000 Swedish households (based on an annual consumption of 5000 kWh). In the mid-1950s there were around 4000 small-scale hydropower plants in operation in Sweden before cheap fossil fuels and uranium competed with them, in the current situation only 1,894 of these are in use. If slumbering small hydropower plants once again would be taken into use and some new ones are built, we would be able to extract about 7 TWh of renewable electricity from these annually in Sweden, representing about 1.4 million households.The thesis intends to calculate and construct a hydroelectric power plant at the existing dam in Olofsfors and give suggestions on how the power station should run during the time that fish migration is greatest in Leduån.The turbine and generator to the station in Leduån at Olofsfors is designed by the height of the fall and the water flow through the dam. The turbine selected for the station is a CK-1000RM turbine with a 4-pole 250 kW generator from Cargo & power turbine Sweden AB, which is expected to deliver 1.2 GWh per year.

Implementation av ett digitalt vågfilter på en SIC-struktur

When implementing syncronous filters with global clock nets, a substantial amount of energy is consumed in the clock net. Hence, it is interesting to reduce the size of the clock net, which in turn will reduce the total energy consumption. One way to acheive this, is to create a SIC (Structured Interfacing of Computational elements) since such a structure can be created without a global clock net. Our results show that a fifth order wavedigital filter with a sample rate of at least 10M samples/sec may be achieved.

"Det är väl min egen lathet, ambition och inspiration som sätter gränser" : En normkritisk genusstudie om engelsklärares val av romaner till litteraturundervisningen

From an anti-oppressive and a gender perspective, the aim of this paper is to examine whether three English teachers at a comprehensive school in Stockholm make gender conscious selections when selecting novels for their English literature lessons. Through quantitative research, semi-structured interviews and e-mail interviews with these teachers I have attempted to find out if they include both male and female writers when selecting English novels for their students and also what factors affect their selections. I have analyzed the interviews and the quantitative research by using a qualitative and a quantitative content analysis. The theories that I have established my analysis upon are gender theories about the male norm in society, the feminist Simone de Beauvoir?s ideas about the woman as a second gender and the sociologist Raewyn Connell?s gender regimes.

Skönlitteraturens nya kläder? Elektronisk publicering av skönlitteratur: en kvalitativ intervjustudie med nio svenska förlag och fyra andra aktörer på det litterära fältet

The main objective of this essay is to present the views of nine Swedish publishers and four other agents in the literary field regarding the possibilities of and obstacles to publishing fiction in an electronic format. Furthermore, whether or not electronic publishing is today actually a viable alternative. A substantial part of the essay functions as background to our interview findings and is based primarily on material originating from the Sociology of Literature field. The introductory chapter expounds the methodological and theoretical basis of the essay and is followed by a chapter placing our study in a larger, international media, context. Chapter three deals with the past decades? restructuring of the publishing sector, the professional functions involved in traditional publishing and Pierre Bourdieu?s theories on the cultural and economic forces at work in the literary field.

Uppvärmningssystem : Ekonomi, miljö och drift

This bachelor thesis aims at investigate how a specified house can optimize its energy consumption.Today the house often stands for the major part of the energy consumption in a consumers? life,whereas an energy optimization creates economic as well as environmental advantages. It is importantto make old houses more energy efficient, but putting high energy demands on new houses could beargued to be more important. The installations functions as both the heart and brain in a house, thusmaking it important to energy optimize these. Since the background describes the importance ofenergy efficiency and optimization in a house, the focus area of this report will be an investigation ofdifferent types of heating systems in order to be able to choose the one most suited for the house.Aspects considered when choosing the heating system was how economic the system is both inservice- and investment costs and how environmental and operational friendly the system is.Through literature reviews there were sufficient information gathered that served as a foundation whencomparing and choosing between the four systems - district heating, pellet-fired boiler, geothermalheating and solar heating.

Projektering av en etanolfermenteringsanläggning i pilotskala med Biostilteknologi

AbstractThis degree thesis was made in cooperation with Chematur Engineering in Karlskoga.Many of the environmental issues of today are a result of the motor traffic. Consumption of fossil fuels harms our environmental through formation of carbon dioxide and other greenhouse gases. To get under control with our environmental issues it?s important to find substitutes for oil that are both cheap and environmentally friendly. Ethanol has a long history as a motor fuel and is both enviromentally friendly has a high efficiency.According to the EU commissions directives for motor fuels, 5, 75 % of all the fuels in Sweden should be renewable in 2010.

Konstruktion av värmeelement

This report aims to describing the work behind the development of a masonry heater.The masonry heater is developed in collaboration with the company Transient Design KB that is a product development company located in Alingsås. The company sees a possibility to cover a market segment where modern technology and design are missing.The report presents those methods and approaches that have been used and gives an overview to how the project has been carried out. It describes how the ideas behind the final results have produced and how they have been developed during the project's time. In the report you can also read about the final concept with its choices of construction and materials.The report is completed with a presentation of a final concept and a ground for possible future production..

Sökande till IMH (Ingesunds Musikhögskola) som möjlig indikator på förändrade instrumentpreferenser bland barn och ungdomar

Detta är en undersökning av fördelningen av sökande till en musikhögskola vid tre söktillfällen med fem års mellanrum, 1997, 2002 och 2007. Mot denna bakgrund diskuteras förändringar i instrumentval som antas spegla förändringar för ca 20 år sedan då de sökande antas ha gjort sina val.Förändringar som jag har iakttagit är att instrument som går under den klassiska genren har tappat sökande men den är fortfarande den största genren. Instrument under afrogenren blir mer och mer populära och folkmusikgenren blir större och större..

Internationalisering av tjänsteföretag : En undersökning av svenska träningskedjors internationalisering

The study aims to investigate Swedish fitness companies positioning and strategic choices when internationalising in the Scandinavian countries and what has influenced this choice. Furthermore, the corporate risk and what obstacles they encountered will be examined.The study was conducted as a qualitative study with a deductive approach. The results are based mainly on primary data from interviews, as well as secondary data.The fitness companies? choice of strategy in internationalisation depends largely on its concept and positioning. The main obstacles in the internationalisation process are lack of communication, language difficulties and regulations.

"ÄTA BÖR MAN, ANNARS DÖR MAN" : En studie om möjligheten till implementering av lakto-ovo-vegetarisk och ekologisk kost i Eskilstuna kommuns förskola

The purpose of this study was to describe the possibility of implementing a lacto-ovo-vegetarian and organic diet in Eskilstuna municipality?s public preschool. Furthermore the purpose was to identify and describe the most important components involved in the implementation and their influence in the process.  The methods used were a survey based on a literature study. This study includes general information about meat production and consumption and also the use of pesticides in farming. It also brings up the environmental and health effects caused by the previously mentioned areas.

Friluftsliv i ett fo?ra?ndrat kommunikationslandskap : En kvalitativ underso?kning kring hur ny mediekonsumtion pa?verkar Umea? kommuns kommunikation

The aim of this study is to examine which communication channels and communication strategies Umea? municipality could use for information concerning outdoor recreation. To achieve this aim the following theories and views have been applied: social communication, communication strategies, two-way symmetrical communication, social media and uses and gratifications. The study was conducted through four focus group interviews and one informant interview. The focus groups consisted of four groups of outdoor enthusiasts in Umea? municipality: outdoor interested students, organized outdoor enthusiasts, active families and active seniors.

Konstruktion av förstärkare och insamplingssteg till en PSAADC i 0.25 um CMOS

The aim and goal of this work has been to design and implement a voltage reference network for a 12-bit PSAADC, Parallell Successive Analog to Digital Converter. A chip containing the design has been sent away for fabrication. Because of the long processing time, no measurement data are presented. The main specifications for the voltage reference generator is to generate stable reference voltages with low noise and a good PSRR. Efforts has also been made to minimize the power consumption..

Luftläckage I Småhus : Hur de upptäcks och attityderna till dem

Air tightness in new buildings has been discussed for several decades. But the knowledge in the subject is low. With tougher requirements from the Swedish government about energy consumption for a new building required competences how these shall be met. It's not only the thick mess of insulation that are important, it's also the air tightness. This report is about air leakage in Swedish houses.

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