The purpose of this Bachelor degree project is to design different types of services that can increase the amount of re-used timber within the building sector and by that means improve their environmental efforts. By examining how the sectors environmental work concerning recycling and re-using timber as a building material is getting on at present, conclusions have been drawn about what further could be done for improvement.The project has shown that there is a scarcity of information and statistics within the sector, but that there are efforts in progress to change this. Questionnaires have been sent to a number of companies working with demolition and utilizing re-usable materials in order to find out what kind of problems there are within the trade. Unfortunately the survey gave insufficient result due to the low reply frequency.It is obvious that active environmental work within the building sector is important and the knowledge acquired while working with the project has led to the design of three suggestions for services regarded as being of interest for improving the negative environmental impact caused by the sector:Suggestion 1 ? Sale of construction parts prior to the demolition of a buildingSuggestion 2 ? Re-utilization circulation when manufacturing buildingsSuggestion 3 ? Education in relation to the purchase of houses  The positive and negative qualities of the suggestions have been examined with SWOT-analysis and further adaptions and the results have been interpreted.

Bakgrund: För att bedriva ett framgångsrikt miljöarbete kan företagen använda sig av olika hjälpmedel och verktyg. Ett exempel på ett sådant verktyg är ett miljöledningssystem. Det har diskuterats om miljöledningssystem i sig leder till miljömässig effektivitet. Det som anses vara av större vikt är på vilket sätt företag arbetar med miljöledningssystem.Syfte: Vårt syfte är att beskriva hur miljöarbete bedrivs och förklara om det bedrivs på ett sätt som gör att den miljömässiga effektiviteten i våra fallföretag kan förbättras. Ett delsyfte är också att undersöka om det finns någon skillnad i arbetssätt gällande miljöfrågor beroende på om verksamheten är offentlig eller privat.Metod:.

Arkitektfirman Kolman X Boye Architects har fått uppdraget att upprätta bygglovshandlingar för ett äldreboende. Det är ännu ej bestämt i detalj hur byggnaden skall uppföras men beställaren önskar att byggnaden uppförs i träbyggnadsteknik. Äldreboendet projekteras för 54 stycken lägenheter fördelat på sex stycken våningsplan och en total bruttoarea på strax under 6000m2. Ingen lika hög träbyggnad med denna verksamhetsklass avseende brand har tidigare uppförts i Sverige.Vår uppgift och utmaning i detta arbete har varit att reda ut problematiken kring projekteringen av exteriöra detaljer för höga hus i trä. Utifrån kända problem avseende brand, akustik och fukt har sedan ett antal detaljer som påverkar det estetiska uttrycket projekterats.

Within today?s organizations there is continual development work to increase efficiency and the power to compete at the market. Production development with focus on continual improvements constitutes an important part of the daily work within a lot of organizations today.The purpose of this study is to contribute to a part of the development process that Volvo Penta factory in Vara has in mind. A description of the current situation was compiled by mapping the internal runnings and material flow throughout the factory. A new suggestion for a layout and a comparison with the current situation will assist with creating a factual basis for the development of a new goods reception.A study was made where the volumes and the quantity of the daily arrival goods were settled.

Examensarbetet har utförts vid Boliden Mineral AB dagbrott i Aitik under perioden 2011-03-28 till 2011-06-01. Syftet med examensarbetet var att göra en utvärdering av pallsprängning lutande borrhål för att se om fragmenteringen förbättrades. Dessutom studera andra effekter som påverkas av fragmentering, t.ex. antal icke hanterbara block (stenar större än 1m3), flöde i primär krossanläggning och grävbarhet. Studien genomfördes genom att en försökssalva sprängdes, där en del av borrhålen var vertikala och den andra delen bestod av lutande borrhål.

We aim to investigate the risk exposure against commodity prices in the forestry and paper industry. The intension is also to study the affect that the changes in commodity prices has on a company?s market value..

Driving simulators are a very important part of the research that is done at VTI. Enhancing the realism and creating a better driving experience in the simulators are very important and an ongoing work process for the engineers and researchers who work with the simulators. This project has been done as a part of this developing process and the purpose is to enhance the realism of the rear-view mirrors.Simulating realistic rear-view mirrors has been demanded, not only from the researchers at VTI, but also from car and truck manufacturers. To achieve a realistic mirror view a method to measure and parameterize real mirrors has been developed. The code for the existing graphics system has also been redone to be able to handle the new types of mirrors introduced..

En skjutstativtruck är en truck med hög acceleration och den aktuella modellen kan köras i hastigheter upp till 14 km/h. När trucken framförs på ojämna underlag, exempelvis slitna industrigolv, fortplantas vibrationer från underlaget genom chassit till maskinhuset. Dessa vibrationer orsakar spänningsökningar och slitage på delarna i maskinhuset och påverkar föraren negativt. För att förbättra miljön för föraren och truckens komponenter ska möjligheten till ett vibrationsdämpat maskinhus undersökas och ett koncept på en möjlig lösning genereras. För att validera att lösningen reducerar vibrationerna som fortplantas från chassit till maskinhuset konstrueras en förenklad prototyp.Projektet har delats upp i olika konceptfaser med enskilda mål.

This study was made for the round wood transport company MT Transport AB. Time studies were made in order to analyze time consumption on the mill site for Timber trucks delivering round wood at the Södra Cell Mörrum mill. The most interesting was to see how much of the time spent at the factory that was waiting time. In three weeks the study was going on and the drivers were clocking it themselves..

Vår uppgift var att ta fram en algoritm för hur lastens massa förhåller sig till hydraultrycket i ett hydraulsystem för en truck. Algoritmen skulle sedan implementeras i en vågprototyp. Lösningen skulle vara kostnadseffektiv.För att undersöka sambandet utfördes mätserier där vi provade olika komponenter. Resultatet av mätserierna analyserades och vi fann ett samband mellan massan och hydraultrycket. Med hjälp av sambandet kunde sedan programkod för en vågprototyp skrivas tillsammans med tillhörande funktioner.Resultatet blev en fungerande vågprototyp för trucken som användes.

This thesis investigated the possibilities to resume cultivation of an old manor house built of timber and what this would mean from an energy and moisture perspective. The building in this case study is named Sofiedals mansion and was built in 1858 in Valbo 11 kilometers west of Gävle.The structure of the house was documented and used as a starting-point for carrying out calculations focused on energy and moisture aspects. With the help of a number of computer programs and a conducted air tightness test, the buildings energy consumption were calculated and compared with the current building regulations.In addition, the building was analyzed considering energy retrofitting and what it meant for moisture problems. The energy retrofitting consisted of additional insulation, decreasing the buildings permeability through air sealing; window and door replacements. When a building is equipped with natural ventilation it is difficult to know its precise performance and how an energy retrofitting affects it.

This report is about how to decide which method is the most suitable as floor covering at projectKlammerdamm in the centre of Halmstad. The covering has to be fire resistant and soundproof inorder to protect the wood structure and stop noise from traveling between apartments. There aretwo possibilities either traditional gypsum board or gypsum-based self leveling underlayment.The roads around the construction site are narrow. A regular twenty-five meter long truck has nopossibility to reach the site. The construction site is small and the storage area is limited.

In Europe poplar plantations has been planted for more than one hundred years. In the first plantation was made in 1940. The interest for poplars has since then shifted over the years and has for long periods been very low but is now slowly increasing again. The main reasons why poplars are becoming more interesting are because of their great production potential. Nevertheless, the knowledge of how to mange poplars in Sweden are very low and very little research has been done concerning management of the species. The objective for this study was to; 1) investigate and document experience and results obtained in practical Swedish forestry, 2) to give a fair picture of the perceived advantages and disadvantages that the poplars has for the forestry, 3) document what the foresters that has experience and those who has no experience of poplar plantations thinks about the potential of poplars.

In the last few years people have become more and more aware of how humanity is affecting the climate. In the direction of reducing the greenhouse gases is to design engines with higher tensile properties and reduced weight, in order to achieve lower fuel consumption and cleaner fuel incineration in today's truck engines.In order to achieve these requirements it?s necessary to increase the combustion pressure in the engine. This requires higher tensile properties and high thermal conductivity of the engine material. The department of Component Technology at the University of Jönköping in collaboration with Volvo Powertrain AB, Scania CV AB and DAROS Piston Rings AB has been commissioned to develop this material and to find knowledge of material properties used in truck engines and piston rings used for marine applications.The purpose with this work is to analyze the tensile properties of a series of cast iron, cast under different metallurgical conditions.Four different series of cast irons have been analyzed from four points of view, carbon concentration, nodularity, amount inoculation and cooling rate.After the tensile test all specimen data was analyzed in a mathematic calculation program called Matlab 2006a.

Because of new emission and on board diagnostics legislations, heavy truck manufacturers are facing new challenges when it comes to improving the engines and the control software. Accurate and real time executable engine models are essential in this work. One successful way of lowering the NOx emissions is to use Exhaust Gas Recirculation (EGR). The objective of this thesis is to create a mean value model for Scania's next generation EGR system consisting of a poppet valve and a two stage cooler. The model will be used to extend an existing mean value engine model.