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3381 Uppsatser om Power consumption - Sida 57 av 226
Mediernas konstruktion av en politisk händelse En kritisk diskursanalys av två svenska morgontidningars medierapportering av oroligheterna till följd av presidentvalet i Kenya
News value is an essential part of which event media chooses to report about. Political events consider to bee news with potentional large value. Media has an enormous power and possibility to create news and construct there own reality and where the readers is given a false expression of what really happened. Today the media must show profit and that indirect affects how the media choose to describe political events. In the Kenya case is it therefore possible to draw the conclusion that the two news paper has different construction of the political event in Kenya.
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.
Arbetsmarknadens spelregler : arbetslöshet bland utomnordiskt födda individer som bor i Finspångs kommun
Research has shown that immigrants in the Swedish society often, when seeking jobs, don?t get the same opportunities as the rest of the population. This thesis is a qualitative research that examines the problematic situation of unemployment among immigrants in the municipality of Finspång. The purpose of this study is to analyze how civil servants in Finspång apprehend and describe the labor market problems surrounding the immigrant groups that live in the municipality of Finspång. The empirical material is build upon seven qualitative interviews with eight civil servants working in Finspång.
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.
Utökade tillämpningsmöjligheter för turbinlösning i våtpartiet hos tissuemaskiner : Konceptförslag som möjliggör tillämpning av turbinlösning för maskiner vars banbredd är bredare än 2,9 meter
AbstractThis thesis is the final part of the Innovation and Design Engineering Programme (180 ECTS credits)at the Faculty of Health, Nature and Engineering Science at Karlstad University. The extent of thisthesis is 22.5 ECTS credits and has been performed independently by Hannes Jernberg during thespring of 2013. Metso Paper Karlstad AB is the task maker of this project, and Arvid Johansson is thecompany Representative. Metso Paper Karlstad AB is one of the world leading developer andmanufacturer of tissue paper machines.In the current situation, the company has developed and patented a power management systembased on a Cross Flow Turbine. The current construction is limited to a paper width of 2.9 meters.The company wants to take advantage of all the opportunities provided by the patents, to develop aturbine solution paper machine with a paper width that is wider than 5.5 meters, and give the abilityto manufacture paper for lower energy consumption which is an important part of the production asit is very energy intensive.Problems arise with the increasing length of the turbine, ultimately resulting in that the deflectionbecomes too big and that the momentums, due to the increased torque the turbine blades breaks.By applying the design process, this work has resulted in a number of potential solutions to theproblem.
Hur skolstarten framställs genom bilderböcker : Diskursanalytisk studie om framställningen av skola, lärare, känslor och makt
In this essay I have studied how the kid?s school start are described in picture books. The studied questions are: How the school is described in these selected picture books; what feeling does the main character have into the school start; how the teachers are described in this selected picture books and how are the power relationship described in these selected picture books?The method I have chosen for this essay is a discourse analysis of seven selected picture books with the meaning of starting school. All books studied are written during the 1990 and forward.
Mätsystem för effektförluster i en högfrekvenstransformator
To measure losses in a transformer with today?s methods is either slow or insecure. There s a new method developed by Alstom that hasn't been actualize in to a test-system and that has been the assignment in this project. The idea is built on a switched system and a CLR- circuit in the resonant frequency. The test-system has a calculated power-loss that make the efficiency to be as high as 99,8% and in reality over 95%.
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.
Effekter av EDI
Background: It has been shown that EDI can yield positive effects within companies. Which effects are possible for a company to direct assign to the introduction of EDI and is it possible to estimate the total effect.Purpose: The purpose of this study is to estimate and analyze the effects of using EDI in electronic business. We also want to contribute with a model for measure and estimate the effects of EDI.Accomplishment: We have studied literature concering EDI and realized a preliminary studie in form of interviews with experts to establish deeper knowledge of EDI. We have also tried to estimate the effects obtained in companies in three different businesses, power, government and transport industry.Result: To obtain as good effects as possible it is important that the co- oporation is built on trust and engagement. Before implementing the EDI-system a thorough overhaul of the processes in the company should be done, involving both the top managers and the staff.
USA:s m?ngfacetterade strategi i Myanmar En komparativ analys av liberalism och realism i amerikansk utrikespolitik
This thesis examines the USA?s response to the military coup in Myanmar 2021 through a
comparative analysis of the two dominant international relations theories: realism and
liberalism. The study uses a qualitative text analysis of the US Burma act of 2021 to test the
explanatory power of the theories in the formulation of US policy. The results shows that
liberal theory has the greater explanatory power, as the US response was systematically
motivated by a normative desire to restore democracy in Myanmar. However, some realist
tendencies could be observed, especially through exception clauses preserving US national
security interest and the mention of China?s support for the military junta in Myanmar.
Att leva som andra : Makt och hjälp i insatsen personlig assistans
The purpose of the study is that based on focus groups with personal assistants understand how self-determination and participation, expresses itself in work with the users. The study has a focus on the concepts of power and help and social citizenship in the context of self-determination and participation. We are interested to explore how personal assistants reason and argue about different design cases and situations related to self-determination and participation in the relationship with the users. For this study we have used a qualitative method and to collect our data we have used focus groups and different design cases (vignettes). To analyze our data we used the theory about power and help and the theory about social citizenship.
Det energiproducerande huset
We are heading towards a huge switch of how energy is produced with fossil fuels being replaced by renewable energy sources. It is not difficult to replace the energy you use in the house and there is no need for futuristic technology. There are already many established products on the market such as high efficiency vacuum solar collectors, heat pumps & small wind power stations that can supply the energy being used in a house. The company Sol & Energiteknik SE AB in Huskvarna has many different products which can reduce the need for an outside energy distributor. An average house in Sweden uses 15 000 kWh for heating, 5000 kWh for tap water and 5000 kWh for electricity.
Vindkraftverk av UHPC 2.2 : En undersökning av högpresterande betong med syntetfiberarmeringen STRUX
Användandet av betong som ersättare för stål vid produktionen av vindkraftverkstorn har ökat den senaste tiden. Betongtorn är betydligt billigare än ståltorn men problem som sprickbildningar, frostsprängningar och följaktligen armeringskorrosion har uppstått bl a på grund av vibrationer från rotorn. I fundamentet i vindkraftverk kan ovan nämnda problem också uppstå och det uppfyller således inte alltid funktionskraven. Det här examensarbetet undersöker möjligheten att eliminera dessa problem genom att använda en sorts högpresterande betong kallad UHPC 2.2 med syntetfiberarmeringen, STRUX. Jämförelser mellan tidigare empiri om högpresterande betong och laborativa tester på UHPC 2.2 visar att den senare är beständigare och ger möjligheter till en större sprickfrihet.
Specificering av produktionstransformatorer : Rekommenderade avsteg från IEC 60076 för att vid upphandling beskriva en robust enhet
As break downs of production transformers are costly and often result in long outages it is essential for reliability of operation that the transformers are manufactured to be robust. The aim of this M.Sc. thesis is to investigate if deviations should be made from the standard IEC 60076 ? Power Transformers in order to describe a robust large power transformer for procurement.The investigation has been conducted in three stages. In the first stage a definition of the term robust was developed in consultation with the client Vattenfall Vattenkraft.
Stenmaterial vid asfalttillverkning
Denna rapport beskriver arbetet med utvecklingen av en ny modell för kaplanturbiner. Utvecklingen bygger på två kopplade differentialekvationer som under arbetets gång anpassats och implementerats i turbinmodellen.Modellen beskriver hur vattenflöde och turbinmoment påverkas av avvikelsen från den optimala kombineringskurvan för vinklarna på turbinens ledskena och löphjul, och är anpassad för ett referensaggregat med tillgängliga provdata. Även övriga enheter i vattenkraftaggregatet modelleras och sätts samman med frekvensregulator och elnät för att simulera aggregatets reglerstabilitet i önätsdrift.Verifieringen av turbinmodellen sker genom försök att återskapa de befintliga verkningsgradskurvorna med hjälp av modellen. Resultatet visar en god följning av de verkliga kurvformerna, dock med något lägre maximal verkningsgrad.Verifieringen av önätmodellen sker genom att prova stabiliteten i nätfrekvens och turbineffekt vid stegpålastningar. Resultatet ger en stabilare reglerstabilitet än i verkligheten, men uppfyller ändå förväntningarna på en fungerande modell.This report describes the development of a new kaplan turbine model.