En billig och robust motor av stirlingtyp har konstruerats för användning i villor. Som energikälla används de heta rökgaserna från förbränningen i husets panna. Motorn driver en generator i permanent drift under den kalla delen av året då värme- och energiförbrukningen är som störst i vårt land. Under den varma årstiden finns den tillgänglig som reservkraftverk. Tanken är att stirlingmotorns värmare ska placeras i en villapanna för att ta till vara exergipotentialen hos dess höga temperatur.

Public concern about the release of toxic compounds from wood-based products drives legislation towards enforcing industries to find and use more sustainable solutions for wood treatment. Plant oils are good alternatives to treat wood, minimizing or even neutralizing the impact on the environment. Wood modification with epoxidised linseed oil (ELO) and acetic acid as catalyst has proven a suitable method to impregnate and protect wood. However, the mixture presents a serious inconvenience because of the quick polymerization of the ingredients that limits its practical application. Therefore, this study was designed to evaluate an alternative method using a two-step process which bypassed the problem above.

This thesis is the result of the investigation and solution of a Mechanicalproblem regarding flywheel malfunctions. A flywheel is, in short, a devicethat relies on a rotating object?s moment of inertia to store energy overshort time spans. This project is part of the development of a fourthflywheel prototype at the division for electricity at Uppsala university,which uses magnetic levitation to keep a hollow cylinder rotating at veryhigh speeds inside a vacuum chamber. Should the magnets fail however, orsome other error occur that leads to an uncontrolled state of rotation, thecylinder needs to be stabilized Mechanically by a device usually referredto as ?back-up bearing?.

A piezoelectric injector was modeled, in this Master Thesis Project which was carried out at Scania CV AB in Södertälje, in GT-Fuel. GT-Fuel is simulation program from Gamma Technology.The simulation model for the piezo injector was divided into a hydro-Mechanical system and an electrical system (Piezoelectric element). First the hydro-mechanic model was duplicated from Advance Continuous Simulation Language model (ACSL). The simulation results were then compared to the ACSL, to verify that the hydro-Mechanical system was modeled correctly. The simulation results for the electrical model were also compared with a Simulink model.

Projektet bestod i att utveckla en anläggning för personsanering av biologiska-, kemiska- och nukleära stridsmedel, en så kallad NBCanläggning. Arbetet har initierats av Marinens Sjösäkerhetsskola i Karlskrona. Under arbetets gång har Fredy Olssons produktutvecklingsmodell tillämpats. Projektets tyngdpunkt har legat i att söka komponentalternativ för de önskade ändamålen och för att uppfylla kraven. Anläggningen är långt ifrån produktionsklar, men ett omfattande grundarbete har gjorts inför ytterligare bearbetning och komplettering med beräkningar samt vissa komponentval..

Since prehistoric time man has used wood to build their environment. The material?s availabilitycombined with its good Mechanical properties has often made it the material of choice. Like allmaterials exposed to natures degradative processes the properties of wood decreases over time.Rot, UV radiation and attacks by insects and pests damage wood if not protected. Since we wantwhat we build to consist, optimizing our building materials durability is of great interest.Techniques and methods for increasing the endurance of wood have been developed in severaldifferent places and for a long time.

Uppdraget som gavs av Brimer VA Produktion AB i Osby var att ?föra fram deras nya vattenledningssystem i ljuset?, göra en FEM-beräkning på en detalj i systemet och ta fram en ekonomisk samt teknisk jämförelse mot det traditionella vattenledningssystemet. Bästa lösningen på uppgiften var att visualisera vattenledningssystemet med hjälp av animerade filmer. Detta med tanke på att visualisering har ingått till stor del i utbildningen Virtuell Produktutveckling & Design..

Mechanical relays are more and more being replaced with semiconductortechnology. In this thesis it is investigated if and how the larger loads couldbe controlled by transistors. The main part of this work aims to create andverify a solution that can control the starter motor, as well as protect it incase of any failure. The different malfunctions that the solution protectsagainst is high current, too high peak current, low current, maximum cranktime and minimum cool off time. The timers also protect indirectly againstoverheating of the starter engine.The transistors used are BTS555, from Infineon.

Mechanical scaling is one of the most complex operations of all in the mining process. The operators are using both hearing, sight and feel to read the rock and to know where to scale and where to leave. They say they go on gut feeling in great extent, something that comes with experience. The scaling machine is placed into the edge of unsecured and newly blasted rock to hammer off the blocks that has become loose after the blast, but not enough to fall down. It goes without sayingthat it is a risky job.

This report will discuss principle, primary and finally manufacturing structure. We were asked to produce a 3D milling to processing the prototype material that is used on the University of Halmstad. From conceptual drawings to produce components for this project have we together with a number of company take developed the right components for this project. We have calculated and analyzed the construction to get the best result for it purpose. Unfortunately have the process to produce the 3D milling has been stopped because of deficient budget and time.

This report will discuss principle, primary and finally manufacturing structure. We were asked to produce a 3D milling to processing the prototype material that is used on the University of Halmstad. From conceptual drawings to produce components for this project have we together with a number of company take developed the right components for this project. We have calculated and analyzed the construction to get the best result for it purpose. Unfortunately have the process to produce the 3D milling has been stopped because of deficient budget and time.

This report will discuss principle, primary and finally manufacturing structure. We were asked to produce a 3D milling to processing the prototype material that is used on the University of Halmstad. From conceptual drawings to produce components for this project have we together with a number of company take developed the right components for this project. We have calculated and analyzed the construction to get the best result for it purpose. Unfortunately have the process to produce the 3D milling has been stopped because of deficient budget and time.

This report will discuss principle, primary and finally manufacturing structure. We were asked to produce a 3D milling to processing the prototype material that is used on the University of Halmstad. From conceptual drawings to produce components for this project have we together with a number of company take developed the right components for this project. We have calculated and analyzed the construction to get the best result for it purpose. Unfortunately have the process to produce the 3D milling has been stopped because of deficient budget and time.

Syftet med rapporten var att studera möjliga återvinningstekniker för Ragn-Sells. För detta användes litteratursökning och intervjuer. Återvinningstekniker som studerats är mekanisk bearbetning, mekanisk återvinning, kemisk återvinning och viskostillverkning. Flera underklasser till dessa metoder studerades också, liksom flera sätt att tillverka återvunna produkter. Rapporten nämner ett urval av återvinningstekniker och försöker inte nämna alla tillgängliga återvinningstekniker.Återvinningsteknikerna har sorterats enligt prioriteringen i EU:s återvinningsdirektiv (2008/98/EG).

The BSC is a widely used management tool that is turning the vision and strategy into operational goals. However, after analyzing the criticism received by the BSC, it seems as if its internal focus, rigidity, static-ism and Mechanical mindset limits the company?s ability to create a strategy that takes important external factors into account. As we see it, the BSC?s limitations can create a risk for strategic inertia.