
Sökresultat:
1061 Uppsatser om Electrical engineering - Sida 10 av 71
Hur uppfattas riskinformationsbroschyrer? - teoretisk analys och experimentell studie av riskinformation
Information about the risks involved shall be distributed to the people living in the area nearby to potentially dangerous installation. Swedish law stipulates strict requirements on what information should be supplied, but the law itself does not give any guidance on presentation. The main purpose of the study is to give recommendations on how to improve the information brochures. Within the study, eight people working with risk information have been interviewed and seven different risk information brochures have been studied. Also, a theoretical analysis and a practical experiment were performed using brochures from two municipalities.
Horisontalrörelse för svetsbrännare
Att utveckla en utrustning för positionering av en svetsbrännares
horisontalrörelse..
Är rummet en maskin? Aspekter på Bill Hilliers konfigurationsteori
no abstract available.
Product Innovation Engineering program : En studie av ett nationellt innovationsprogram i Sverige
This study is intended to give an impartial view of a young and complex program in Sweden titled Product Innovation Engineering program. The purpose of this program is to increase innovation capability in Sweden that will result in new companies, patents and economic growth. The results from this study might give some direction to future innovation initiatives, but should primarily serve as a tool for the PIEp participants. The study will focus on investigating the creation of the program as well as the development of its strategy. From weaknesses and strengths within the strategy of the program the study should also attempt to show its future potential.
Modell för värdering och hantering av avbrottsrisker vid kontinuitetsplanering (BCP) : Fallet Swedwood
This master thesis presents a Model for Evaluating and Managing Interruption Risks in connection with Business Continuity Planning (BCP), developed for Swedwood International. The model consists of a template with instructions. The model should be easily understood and useful for establishing a plan for BCP. This is achieved by including the contents and procedure of BCP and the main supplychain risks in the model. The purpose of a BCP plan is to describe how an enterprise will return to business as usual after an interruption, e.g.
Webbaserat system för effektiv registrering och hantering av reklamationer
Vitamex AB är en nordisk egenvårdskoncern med huvudkontor i Norrköping som tillverkar och säljer naturläkemedel och kosttillskott. Inom Vitamex Production AB finns ett reklamationssystem för interna och externa reklamationer som hanteras pappersvägen. För att underlätta hanteringen önskade man ett webbaserat behörighetsstyrt datasystem. I det här examensarbetet beskrivs utvecklingen av ett webbaserat system där fokus har lagts på användbarhet. För utvecklingen har designteorin Usability Engineering använts.
Kommunikation av risk- och sårbarhetsanalys från länsstyrelse till kommun
This master thesis investigates how the county administrative boards communicate the regional risk and vulnerability analyses to municipalities in Sweden. Information has been gathered through a survey and through a case study involving three county administrative boards. The results revealed that there are possibilities to improve or develop the communication in all the county administrative boards. The information channels are often written or web based, these channels promote one way communication rather than a dialog. The thesis gives suggestion on how to work out a strategy for a more effective communication, the case study also gives ideas on how a county administrative board can work with communication..
Självförsörjande elgenerering : Kan Orust bli självförsörjande på förnybar el?
Orust Kretsloppsakademi is a nonprofit organisation, with a goal of annually generate the same amount of electrical energy that is consumed. Orust is an island on the west coast of Sweden, north of Gothenburg. The population of 15 000 reaches 40 000 during summer, due to the large amount of vacationer. The total electricity demand is 174 GWh a year with a maximum power need of 32 MW. This report presents an analysis for the plausibility of their plan and from a power system stability perspective, the effects on the electrical grid.The conclusion is that the restraints for development of power generation from wind, solar and wave generation, are the power systems capability to transfer power, primarily in the transformers of the grid.
Modellering av reserv- och nödkraftsystem i JAS 39 Gripen
Simulation is a vital tool during development of JAS 39 Gripen, since money and time can be saved.The Auxiliary and Emergency Power System, AEPS, is a subsystem of the secondary power system in Gripen. It has the function of providing the aircraft with electrical and hydraulical power before activation and after deactivation of the main engine. The system also functions as backup in case of a safety critical problem in the main power supply system. The system basically consists of a control unit and an auxiliary gearbox. The gearbox is driven by an air turbine.
Use Case : en teknik för att representera krav i RE-processen
Detta examensarbete ger en introduktion till Requirements Engineering (RE), kravprocessen i informationssystemutveckling. Det slutliga informationssystemet är i stor utsträckning beroende av en effektiv RE-process. Ett framgångsrikt informationssystem beror på hur väl det färdiga systemet stämmer överens med användarens och andra intressenters behov och förväntningar. Use Case är en teknik som kan användas i RE-processen för att representera krav. Arbetets syfte är att finna de för- och nackdelar som finns med Use Case för att representera krav.
Smarta elnät i Sverige : Energibranschens förutsättningar och förväntningar
The need for a more efficient electrical grid has made the smart grid concept popular in recent years. The aims of this study are to identify the conditions in Sweden for implementing a smart grid and to analyse the opinions of stakeholders. One finding is that the large capacity of Sweden?s existing electrical grid decreases the immediate need for smart grid solutions. However, the rapid increase in wind power might push the development of a smart grid in the coming years.
Informationssystem för service av truckar och städmaskiner
This paper describes the evolutionary development of an information system for a small company. The company performs overhaul of forklifts and cleaning machines. The company has already an information system that handles the reports from these overhauls but it needs a supplementary tool that assist the chief planner to plan forthcoming overhauls.It should be able to display coming overhauls in a timetable and eventually print them, either to a PDF file or to a document. The timetables this function produces will help the chief planner and the assemblers to get a good overview of their day-to-day work.The tool needs to be intelligent in that way that it takes into consideration were in the country different assignments will be performed. So that time consuming travels over great distances can be avoided.
Utvecklingen från traditionell ekonomistyrning till verksamhetsstyrning : En studie inom ekonomistyrning
This thesis primarily includes a study on whether companies can develop a mathematical activity that supports students' motivation in mathematics. The work was done together with Midroc Electro, a company that pays attention to the difficulty of recruiting and therefore was interested in investigating how the business world would be able to contribute.The thesis can be divided into three stages. The first part comprised by a exploration into research on student motivation regarding mathematics as well as numerous interviews with engineers to see how the research findings did fit with Midroc Electros reality. In these studies it became clear that the student who aims for a profession whose education or work requires math belongs to the group of students who primarily manage their studies in mathematics, that is, those that have the greatest motivation to work hard and complete their studies.Research information and interviews were compared and resulted in the thesis second part, Midroc Challenge. An activity where students primarily came to learn about the engineering profession and secondly how mathematics can be used in the engineering profession.
Statuskontroll av Paradisskolans elektriska belastning
In this thesis is studied the electrical load of Paradisskolan with respect to power quality and energy consumption. The school's owner Trollhättans Tomt AB is also interested to know if they can reduce their costs by changing to smaller meter fuses. A recurring ground fault that?s been recorded from powerpanel A1A has been investigated. The school's equipped with an electrical bonding system, harmonic filters for the third harmonic currents, TN-S system from feeding transformer and groundfault monitoring.
Tidssynkroniserade mätningar i vattenkraftstationer
Vattenfall and Svenska Kraftnät perform start-up tests, where hydropower generators are used to power up the electrical grid in case of a blackout. To monitor the electrical grid, Phasor Measurement Units (PMU) are used. Each PMU is individually equipped with a GPS-receiver to precisely timestamp the data relative to the official time UTC. During the test, it is also of interest to timestamp the measurement signals from individual hydropower generators to later compare with PMU-data, and thus study the power grids impact on the generator. The aim is to work out an appropriate method to make these measurements and to build a data acquisition system, capable of timestamp data relative to UTC, from a generator in one of Vattenfalls hydroelectric power stations. The problem is that the generator is located in an underground station which hampers the reception of GPS-signals and wiring should be avoided if possible. Time synchronization has been solved by using Vattenfalls network, which is synchronized by the network protocol NTP.