This report will examine various solar energy technologies in order to decide if they could be applied in the Royal Seaport. The Royal Seaport is a Swedish urban district under development in Stockholm, with the goal of becoming a sustainable district. Two main techniques, solar collectors and solar cells, including sub-categories, are addressed in this report. Another sub-category, a hybrid system, will also be mentioned. The main difference between solar collectors and solar cells is the type of energy produced by the system.

Examensarbetet kommer underso?ka aktiv ljuddesign fo?r tysta personbilar. Utifra?n tidigare forskning om hur elbilen utsa?tter ma?nniskor i ta?tomra?den fo?r fara pa? grund av avsaknaden av auditiv information, ska vi utveckla fo?rslag pa? dynamiska billjud som fo?rha?ller sig till trafiksa?kerhet, design och minskade ljudfo?roreningar. Den totala ljudniva?n i sta?der a?r la?ngt o?ver rekommendationen och fo?ljden blir ett ha?lsoproblem i sto?rre sta?der.

AbstractThe dependency of fossil fuels in the transport sector causes large emissions of carbondioxide. This problem can we reduce by using vehicle gas from digested solid manure and leftover of pasture. I have studied the potential for this in the county of Västernorrland. Thepurpose is to investigate how much vehicle gas that can be extracted.One central, large scale digestion and upgrade plant should be placed in Härnösand. Theamount of pasture and manure that is economical and practical available is enough to produce2,7-3,5 millions Nm3 vehicle gas.

A large part of the time losses in production in modern manufacturing industry are a cause of unplanned interruptions in production. In this essay we have studied the effects of an unplanned interruption in production. The study was performed during one month on a press production line at Volvo Cars Body Components (VCBC) in Olofström. The effects of the interruptions have been studied on the basis of two perspectives of the environment of the production. The study started at the level of automation and was mainly done as a survey of the unplanned interruptions in production.

Ecolean Development AB are developing and manufacturing filling machines for pasteurized liquid food products. Because of lack of any appropriate supplier of box closer which seals boxes with small flaps, they have decided to start a project to develop a prototype of a box closer. Due to long experience from industrial automation I have been given a chance to develop control system for a box closer. Degree thesis involves electric design in ELPROCAD ic PRO and programming of PLC (programmable logic controller) and HMI (Human Machine Interface). The report describes degree project from the project plan phase via the development phase to the conclusions.

Studiens syfte är att belysa några yrkesverksamma elbasisters syn på egen utveckling och dess samband med övning. Som metod har halvstrukturerade intervjuer använts. Informanterna utgörs av tre yrkesverksamma elbasister som berättar om sin syn på övning och utveckling samt vad de anser vara viktigt för att utvecklas som elbasist. Den teoretiska utgångspunkten för denna studie är ett hermeneutiskt perspektiv då målet är att göra en djupare analys och tolkning av de intervjuades livsvärld. Resultatet visar att informanterna tycker att viktiga byggstenar i utvecklingen är att spela tillsammans med andra och lyssna på musik.

Calesco Foil AB is a manufacturer of thin flexible circuits for heating or electric conduction.The plant is located in Kolbäck, Sweden.One of the company?s products, the conducting polymer pasta is in present situationunpredictable. Unpredictable in the way that the same type of heater shows differentresistance, depending on which time they have been produced. The desired repetitivelyprocess is almost non-existing.The aim of this master thesis is to primary identify those parameters that effects theresistance, observe and if possible to perform tests on them. The results from this analysisstand as base for recommendations to achieve a repetitive and standardized printing process.The results and the observations from the tests indicate that a repetitive process is possible toachieve.

If you have access to wood, a wood burning boiler is a cheap way to heat your home, but it is certainly not the most convenient option. Wood requires many operations and management, which takes time. One way to reduce this workload is to have a modern boiler with automatic ignition. Enertech/CTC has a desire to create an accessory with automatic ignition to a modern wood burning boiler. Today there is no boiler on the market that can ignite firewood automatically without the introduction of paper and sticks.

The purpose of this study is to investigate how much of the estimated annual electric energy production from Swedish wind power that actually was produced, as well as the history of this agreement over time. The aim is to also examine if there are properties that have caused some group of wind power plants to produce more or less, compared to their estimated production. Operational data on wind turbines collected by the Swedish Energy Agency was analyzed. A survey was made among owners of wind power plants with a nominal power of at least 2 MW. Two different methods for normal year correction of production data were used and compared.

Gtherm is an innovation company who has an unique air heat exchanger underdevelopment. The purpose of this thesis is to provide data of suitable motors for theheat exchanger and to find suitable motor suppliers.A motor specification was designed. It is an important basis for the search of suitablemotors. A compilation was made of nine motor suppliers and the suitable motorsfrom those. The compilation can be used by GTherm in their choice of suppliers andmotors.The compilation of the demands on the motor and analysis of suppliers indicated thatthere were no standard motors available to GTherms air heat exchanger.

In this qualitative study the authors explores, by studying several quality-development models what quality in leadership is. The models are: Total Quality Management; SIQ?s model for customer-oriented organizational development; the EFQM excellence model; the ISO 9000:2000 standard; and Six Sigma. These models will be compared from Deming?s list for upper management; the Situational Leadership Theory; and the Contingency Theory.

Företag kan använda sig av olika strategier för underhåll. Det kan vara avhjälpande underhåll som utförs först när ett fel uppkommer eller förebyggande underhåll. Ofta används en kombination av båda. Det förebyggande underhållet kan vara förutbestämt eller tillståndsbaserat. Fördelar med att använda sig av tillståndsbaserat underhåll är exempelvis att utbyte av enheter inte behöver ske i onödan utan först när en observation visar att ett fel är på väg att ske.

Volvo Cars Body Components i Olofström tillverkar karosskomponenter till Volvos personbilar. De senaste åren har produktionsvolymen ökat betydligt, samtidigt som hårda krav på rationaliseringar ställs inom koncernen. En parameter som skulle kunna minska kostnaderna och effektivisera produktionsflödet, är partistorlekarna i pressning. Idag är partistorlekarna anpassade efter några dagars kundbehov och man är oense om partistorlekarna tar hänsyn till om artikeln har ett högt styckvärde eller kräver små lagerutrymmen. I vår uppsats har vi använt oss av metodtriangulering, vilket innebär att vi har kombinerat ett kvalitativt och ett kvantitativt synsätt för att komma till vår slutsats.

The agricultural sector is currently highly dependent on fossil fuels, with diesel beingmost prominent. There are however both historical and modern alternatives thathave not been subject to enough evaluation to disregard them as suitable alternative.This report aims to theoretically investigate the feasibility of converting aconventional diesel driven tractor to run on electricity, delivered via a cableconnected to either the main power grid or on-site electric production, such asphotovoltaic. Delivering electricity to the machine via a cable is a method withhistorical roots in the early 20th century and in the present day mining industry.The economic and technological potential of the technique are evaluated, along withthe examination of several different motor powers, voltages, losses and constructionideas. The report finds the technique to be both possible as well as long termeconomically and environmentally beneficial. To realise this method however, somedeviations from the present methods of agricultural farming must be made,considering the more advanced driving patterns, the limited mobility and therequirement for extra driver awareness.

I detta arbete undersöks utifrån olika aspekter, barn med koncentrationssvårigheter i förskola. Mitt teoretiska perspektiv är motivationsteorin. Min hypotes är att miljöns utformning har betydelse för barn med koncentrationssvårigheter. Mina forskningsfrågor är föjande; Vad är viktigt för att ett barn skall bibehålla sin koncentration? Vad har förskollärarna för ansvar för att bibehålla barnens koncentration? Vad har förskollärarna för strategier så att barnen skall kunna bibehålla koncentrationen? Och Har miljös utformning betydelse för barn koncentrationsförmåga? För att undersöka syftet har kvalitativaintervjuer utförts med tre förskollärare med olika erfarenheter och år inom yrket.