Fast pyrolysis is a method for converting biomass into three energy rich products: char, gas and bio-oil, where the latter is most interesting.  Pyrolysis is an endothermic process where biomass is heated in an anaerobic environment and, with the right operating conditions, up to 80 %wt bio-oil can be extracted. Key parameters for fast pyrolysis are: stable reactor temperature (~500°C), short residue time for gas in the reactor (<2 s) and a very high heating rate for the biomass. Today there are several different process solutions for fast pyrolysis, where fluidized beds and rotating cones are most developed. Bio-oil has compared to fossil oil: lower heating value, low pH and also polymerizes with time. Because of this upgrading is desirable for increasing competitiveness.

Examensarbete utfördes på CA-Verken i Sävsjö som bl.a. tillverkar hydraulcylindrar. De senaste två år har CA-Verken haft en kraftig ökning av omsättningen och det som står i vägen för fortsatt expansion är produktionen som har begränsad kapacitet.Målet med detta arbete är att studera CA-Verkens produktionsflöde för att kunna identifiera flaskhalsen/flaskhalsarna och därefter ge förslag på lösningar och förbättringar. Den teorin som har använts som grund till arbetet är Theory of Constraints (TOC). Intervjuer, företagets affärssystem och observationer har använts vid datainsamling.

The investigation was initiated because of the high workload of the sellers and, additionally, because the Tunadal sawmill has received low ratings in customer surveys. Thus,  two main approaches are adopted here,  the first being to investigate which of the three methods  of working, namely, market divided flow organization, function organizationand flow organization with collaboration, proves to be the most beneficial. The second is to investigate whether there is an available method to ease the daily work. A literature review has been made in order to determine more efficient ways for the sellers to work in the Tunadal sawmill. During the investigation, an in-depth investigation into the total quality management using a balanced scorecard as a management tool was conducted.

The Transport division is responsible for the internal transports on Sandvik MaterialTechnology AB. At the moment there is no clear picture of how the straddle carriers aremoving at the division Primary Products and if it is working in a satisfying way. It isimportant to see the whole picture of the transportation flow so improvements can be made.The purpose of this essay is to survey and analyse the truck flow in a Lean Productionperspective. The essay is delimited to only include straddle carriers transportation ways in thePrimary Products division. To survey the truck flow we have used a method called Walkthrough.This means that we have walked thorough the whole production flow andinterviewed some of the employed on the way to get the necessary information.

Dagens konsumentbeteende online skiljer sig åt från hur det såg ut för bara några år sedan, någotsom kan förklaras av att både e-handel och Internet ständigt utvecklas och vårt köpbeteende ochvåra preferenser tenderar att förändras över tid. Den tekniska utvecklingen gör attkonsumentbeteendet inom e-handel tenderar att växla snabbt vilket gör kontinuerlig analys avkonsumentbeteende till en nyckelfaktor för att lyckas inom e-handel.Studien syftar till att undersöka det något yngre kvinnliga segmentets, i åldern 25-34 år,konsumentbeteende inom e-handel idag. Flow är ett använt begrepp för analys avkonsumentbeteende och har visat sig påverka både attityder och avsikter avsevärt inom virtuellamiljöer som exempelvis e-handel. Flera definitioner på begreppet tyder på en viss komplexitetoch att tillståndet tenderar att förändras och växa i takt med utvecklingen. I studienkonceptualiseras flow i kategorierna koncentration, njutning och förvrängd tidsuppfattning, där viundersöker hur de påverkar webbsajters användarvänlighet och konsumentens upplevdabeteendekontroll, och vi fokuserar på konsumentbeteende online i form av impulsköp och avbrutna köp då vi önskar analysera om beteendena påverkas av ett flow-tillstånd Via en enkätundersökning med kvinnliga studenter från svenska universitet visar våra resultat attflow i form av njutning och förvrängd tidsuppfattning ökar impulsköp, medankoncentrationsnivån inte har någon påverkan på konsumentens impulsivitet.

The purpose of this thesis is to examine the organizational buying behaviour in the purchase of travels abroad. We have conducted a case study of two companies, one medium sized and one larger. Our empirical studies have shown that the companies? buying process is divided into two types, the process of recruit a new travel supplier and the process of a straight rebuy of a regular travel service. In the recruiting process we found that the evaluation process of the purchase is an ongoing process that contradicts estab-lished theories.

In recent years, existing solutions for cooling personal computer CPUs have been supplemented by a new product category, factory sealed water cooling loops. These systems, consisting of a water block with an integrated pump, a fan and a radiator, perform well compared to the air cooling solutions but are less effective than larger, custom-built water cooling systems.This project aims to explore the most important aspects of a factory sealed system and to identify possible cost-effective enhancements of the performance.The most significant differences between the different groups of water cooling loops are the block design and the pumping power. The performance of both categories is also largely dependent on the fan power, but increasing fan power has a large negative impact on the noise level.Both radiator size and fan model choice appear, in tests, to be relatively unimportant, presuming that the noise level is kept constant. The position and direction of the fan, however, has significant impact on both the temperature and the sound level.Water blocks can be designed in several different ways, both regarding the heatsink design and the flow direction. In simulation, flow with the inlet centered above the heatsink result in considerably lower pressure drop and slightly higher temperatures than flow through the block, for heatsinks with fin arrays.Creating a competitive product in this product segment certainly seems possible, as there are performance-increasing changes to be made that seemingly has little impact on the production cost.

I want to, but how? My work is a research of the creative process. I have asked myself how ideas take form and how materials can become bearers of ideas. The work has been treated as an action rather than an object. The result shows my research and my interpretation: the process and result are the same..

Sewer trenches usually contain material with a higher hydraulic conductivity then the adjacent soil. Thus they can serve as paths of preferential flow in a polluted area. Wastewater from factories can also leak from wastewater pipes and pollute the soil in the sewer trenches.The purpose of this project was to investigate pollutions in sewer trenches and in sewer pipes in the industrial area of Köpmanholmen, 20 km south of Örnsköldsvik in the north of Sweden. To make an estimation concerning the potential of transport of pollutions in sewer trenches, hydrological calculations were performed.Leakage to any greater extent did not seem to be a problem in the area. This is the case both for the concrete and the wooden pipes that have served as factory wastewater pipes.

The purpose of this thesis for Sapa Heat Transfer is to examine a furnace in which aluminium is pre-heated before hot rolling. The project is modeled in a computer environment in which the air flow in the furnace and the heat transfer to the aluminium solids are included. The computer environment and its governing equations, as well as boundary conditions and generalizations, are presented and explained.The simulations are based on two models. The first model has an asymmetric solid placement, which is how it looks in today's ovens. It is validated against collected data.

This thesis has been performed at Uddeholms AB with the purpose to investigate theparameters affecting the formation of inclusions during the manufacturing of a low carbonmanganese-steel.A follow-up, steel and slag sampling and evaluations in microscope have been done for a totalof five heats.The results for each heat have been evaluated in relation to the theory from the literaturesurvey and suggestions for changes in the process to reduce the amount of inclusions whichhave a negative effect on the steel quality have been given.The project extends over a large process where many parameters affect the formation ofinclusions. However, a tendency that a higher addition of alloys seems to increase the totalamount of inclusions before and after the vacuum degassing is seen.The majority of the studied inclusions seem to approach the composition of the top slag aftervacuum degassing. Ladle glaze may cause the inclusions which had a different compositioncompared to that of the slag.A high or low ladleage together with a high argon flow during vacuum degassing seems todissolve particles from the refractory which later on get trapped inside the inclusions.The floatation for two heats has been studied where a short floatation seems to give a higheramount of inclusions in casted material.In machined material so called stringers were found. The main composition of those stringerswas pure alumina. Inclusions with a composition of pure alumina were not found in the liquidsteel, thus the pure alumina inclusions must be formed during the casting.

Background: The result of our interactive information society is that sales business has shifted from a tactical to a strategical focus, thus companies have had to adapt to this change. The evolution of sales shows that companies have gone from one static model to another, which is discarded by the new concept ?insight selling? claiming that it through insights is possible to be forceful in the, these days, rough sales climate.Purpose: The purpose of the report is to form an understanding of how insight sales affect a sales process.Research question: How does insight selling affect the B2B sales process?Methodology: Process mapping through interviews in combination with organizational documents.Findings: Insight selling affects the sales process by a clearer research mindset and a change in communication in relation to the customer..

The Goal with this Master of Science thesis is to expand the possible turbine efficiencymeasurements on an exhaust turbocharger. It was done as a part of the CICERO competencecentre. To feed the turbine with air a special flow rig has been used. Instead of loading theturbine by just restricting the compressor flow a docking system for an electrical dynamometer isdesigned to use the dynamometer as an additional loading source. By using an electricaldynamometer as loading device for the turbine, measurements are not depending on compressorperformance.A large part of the work consists in designing accessories for the dynamometer.

In todays competitive business climate the concept of ?quality management? is a significant part of daily work for many companies, as they want to achieve high performance quality and delivery success. Within the services sector third-party logistics companies play an increasingly central role when it comes to the goods that are being transported. These companies are presented with continuous challenges to ensure that goods are loaded on trucks efficiently and delivered on time, at the right place and in the right condition. The present case study was conducted in collaboration with Schenker AB and Schenker Åkeri in Jönköping, to help these two company branches serving under the same major corporation to solve a common problem they both encounter, namely the fact that it regularly occurs handling abnormalities in the terminal process that affects overall quality for customers.The study aims to find out how the daily quality control concerning the handling of goods in the terminal process can be improved hopefully resulting in a higher quality in cargo shipments.

A customer of Sekonden IT is to replace the current setup authoring process for a program called PropCalc with a new process based on a setup authoring tool with high quality and usability.The report aims at present a suitable setup authoring tool for PropCalc by making use of a structured evaluation process evaluate the setup authoring tools on the market.Olof Næssén presents a process for evaluating web frameworks for Java in his thesis Utvärdering av webbramverk för Java. The evaluation process is adapted in the report to generally suit evaluation of software. After adjustment to the evaluation process an evalutaion is performed evaluating the currently available setup authoring tools.The evaluation will show that the most suitable candidate for PropCalc is InstallShield Premier but that the candidate that is finally chosen is WiX..