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10977 Uppsatser om Power system simulation - Sida 29 av 732

Elektrisk servostyrning för fyrhjulingar

This thesis is a feasibility study for a future product development project. The purpose ofthis project is to evaluate the possibilities and difficulties associated with the design of anelectric power assist servo for all terrain vehicles (ATVs). The project has been carriedout in collaboration with Nira Control AB. Nira designs and manufactures electric andelectro mechanic products mainly for the motor sport market segment.Nira Control AB is developing a fuel injection system for a new line of large ATVs oncommission. To be able to compete with manufacturers like Yamaha and Honda thecommissioner should be able to offer optional power assist steering.

Centerpartiet och kärnkraften : En studie av förändring i ett parti

ABSTRACTD Level Essay in Political Science, Autumn Semester 2008 by Mattias Andersson. Tutor: Alf Sundin. ?The Swedish Centre Party and Nuclear Power. A Study of Change in a Political Party?The aim of this essay is to examine the policy of the Swedish Centre Party on nuclear power.

Att klä av sig makten? : En kvalitativ undersökning om kläders betydelse för socialarbetare

The aim of this study examines how two groups of social workers at two workplaces reflect to their own clothes in various work situations. We want to gain an understanding of the variables that affects social workers choice of clothes at work. In a qualitative approach the study is based on two focus group-interviews and four semi structured interviews. Empirically analyzes relate to Pierre Bourdieu?s "la distinction, Ervin Goffman?s "frontstage-backstage", and of Michele Foucault?s power concepts.

Sammankoppling av fjärrvärmenäten i Nyköping och Oxelösund : miljö- och systemkonsekvenser

District heating covers most of the residential areas and industries in the twoneighbouring Swedish municipalities Nyköping and Oxelösund. In Nyköping,Vattenfall AB Värme produces heat in a bio-fuelled CHP plant. In Oxelösund,waste heat and use of waste gases from the steel production at SSABOxelösund is the basis in the district heating system.This report examines the environmental consequences of a connection betweenthe two district heating systems. A broad system approach is used and the focusis on environmental effects in the system.A system analysis has been performed on the result of simulations of differentheat and electricity production alternatives. The alternatives simulated wereone where Vattenfall Nyköping covers the base load in the joint district heatingsystem and two where the power plant at SSAB Oxelösund supplies the heatbase load.The conclusion in this report is that the consequences of connecting the twodistrict heating systems can be both positive and negative, depending onsystem boundaries and on the environmental focus.

Lärarens maktutövning och elevens frihet : En studie om hur lärarnas maktposition påverkas av elevernas frihet.

The purpose of this essay is to illustrate how the position of power / exercise of power are perceived in today's schools from the teacher's perspective. I have examined how students' freedom and democracy education interpreted in real life, and how this affects both teacher and student learning approaches. I would also highlight the need to set standards for children's psychological development related to the consequences will be. I have chosen to perform a qualitative research through individual interviews with five participating teachers from different experiences in different type of school. I have used the hermeneutic method of analysis to analyze the material.

Skada, vinst och samhällsflytt : En kvalitativ studie om hur LKAB porträtteras i Dagens Nyheter

The purpose of this paper is to examine how LKAB are portrayed in the newspaper Dagens Nyheter (DN). The methods that were used were: Critical Discourse Analysis (CDA) combined with Critical Linguistic Analysis. These were used since they help to reveal the structures and unconscious meaning and power of word. It gives the tools to see how authority, power and meaning of words are constructed during social practice of the way they are used. To complement the method the theories that?s used are discourse analysis since CDA is both a method and a theory.

Adaptive Capacity through Complex Adaptive System

Problem: The corrugated board industry is highly affected by customer uncertainty, various demands and short delivery times. In combination with a complex multi-step production process managers have to be able to identify bottle-necks and gain knowledge and understanding of how different changes in process will affect the production output. <br/><br/>Purpose: The purpose of this master thesis is twofold, (1) to examine applicability of complexity theory through agent-based modelling on a production process (2) to identify improvement areas in order to increase the production output at SKS production site in Eslöv, by modelling and simulating the production process through an agent-based model. <br/><br/>Method: The chosen method of this study is a combination of a case study and a complex system approach. The empirical data was collected through interviews, observation and document studies which were analysed through an agent-based simulation model.

Design and evaluation of an AGV-system for Tetra Pack in Lund using simulation

This examination work is the final work in our education to become a Bachelor of Science inMechanical Engineering by the University of Lund.The main purpose with this work has been to develop a new effective material handling system for TPPM AB in Lund since the existing system starts to become out of date. The future system that is going to be installed shall have the capacity to support all machines with unit-, semi- and finished goods during full production. The work has also included studying the possibilities to change the material flow in a positive way between the storage and the production when one is using existing buildings.During our work we have been used a simulation program called AutoMod, performing company visits, interviews and reviewed internal and external information to create a picture of what the best conclusion can be. During the work we have contacted five suppliers to receive system solutions and quotatioris. The suppliers, which have been contacted, are Swisslog, Moving, Rocia, Christensen & Hansen and ABB.

Energiåtervinning från gjuteriprocess till fastighet, undersökning för ökat utnyttjande av spillvärme

This diploma work on D-level is made in cooperation with Varnäsföretagen AB in Eskilstuna. The company performs contract manufactured aluminium goods. This work is a continuation on earlier diploma work in Varnäsföretagen AB. Even if the industry process consumes much energy for melting the aluminium goods, they consume a great amount of oil to warm up the building. The purpose of this work is to examine some places in the building and the process to see how much energy it is possible to recycles to the heating system and reduce the costs for heating.

Omkonstruktion av en rollators bromssystem

This diploma work project is a product development project which purpose is to redesign a braking system for a walking frame. The system that was developed diverges the force from the user to braking power, and includes a service brake as well as a parking brake. The most important components of the system are a grip handle on where the user holds on to and a braking handle on which the user operates the brake from. The system also includes a power transmission component, braking package and other mechanical components. All of the components wasn?t developed in this project, several off them has been reused from the existing system.This product has been developed to meet the requirements and standards presented from the principal, Ahlberg Leber.

Kvalité i revision : - en studie om revisorns uppdrag, kollegor och ålder

The purpose of this essay is to illustrate how the position of power / exercise of power are perceived in today's schools from the teacher's perspective. I have examined how students' freedom and democracy education interpreted in real life, and how this affects both teacher and student learning approaches. I would also highlight the need to set standards for children's psychological development related to the consequences will be. I have chosen to perform a qualitative research through individual interviews with five participating teachers from different experiences in different type of school. I have used the hermeneutic method of analysis to analyze the material.

Empowerment: en studie i ansvar, tilltro och ekonomiskt bistånd

Our understanding is that responsibility is shifting from the community towards the individual within the field of social work. This resulted in our essay, which aims to study how the representatives within social service assistance and churches in Helsingborg work with personal power. Our aim is also to illustrate how these representatives view the boundaries of responsibility between the individual and the community. Our questions are: How do the representatives work with personal power from a micro and macro perspective? How do the representatives look upon their position as representatives? What do the representatives consider as responsibility of the individual respective the community? And; Are there preventing factors from individual responsibility? We obtained our empirical material from a qualitative method consisting of interviews.

Systemutveckling av Trouble Report : Hur väljer och prioriterar man tekniska funktioner i vidareutveckling av ett etablerat system?

As part of an internship at Ericsson, this report was written to enhance the understanding of how it is to develop a system that is well established at the workplace. To improve an already existing system is not always as easy as many developers may think. In this report the pros and cons of developing an already existing system has been researched and analyzed. Do note that the results are only from one development of a specific system and that comparison of other developments has been made from other reports and not from experiencing it firsthand. It was found that the choices made can have an impact on further developing and it is important to write down what has been done.

Stubbtransporter och bränslekvalitet hos stubbved :

Stump wood is a hot alternative when the heating plants demands more and more forest fuel. The aim with the study has bean to calculate the costs in four different systems for transportations of stump wood, examine if there are any differences in fuel quality for the stump wood in the different systems, analyse if the fuel quality in stump wood is affected with the time it lays by the road side and how much space the stump wood demands on the road side. To calculate the costs for the different systems a system analysis was carried out, where some of the costs were collected through field studies on Holmen Skog stump experiment and other costs were collected from literature and contacts. Data for the fuel quality study was collected from Eons heat plant in Norrköping. Data for the study of how much space stump wood takes along a roadside was collected from field studies.

Undersökning av solcellspotentialen för golfverksamheter i Sverige

Photovoltaic Systems in Sweden has longbeen heavily dependent on subsidies and grants to bring in a profit for the investor. Production of excess electricity is a major reason for this as the compensation for excess electricity today is low. However, there are businesses that have an electricityneed that are particularly suitable for solar electricity. These businesses have an electricity demand when the sun shines the brightest and if the Photovoltaic System is properly scaled, the excess electricity can be minimized. A golf club is that kind of a business and this thesis aims to examinate the solar power potential for golf businesses in Sweden.Nine golf clubs was selected from different locations in Sweden.

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