The current estimations in regards to the increase in environmental threats underline the importance of influencing individual behavior towards a more sustainable lifestyle. At the same time current trends show an increasing interest into ecologically produced foods around the world and that the consumption has seen a major rise in the 20th century. It is therefore of great importance that companies show their interest and commitment in order to offer and influence the consumer into choosing the environmentally sustainable alternative. Also, in order to properly reach out to the consumers, it is of outmost importance to map out their attitude towards these types of products. It is equally important, in order to fully realize the potential of successful positioning, to show an understanding for the underlying decision processes that dictates purchase.

This is a bachelor thesis about arable land in Varberg, from sustainability and it?s relation to local government and management. Arable land has become more important as a natural resource from a global point of view and in concerns of higher demands of food supply, as a result of population growth, higher consumption worldwide and climate change. But the arable land in Sweden is being exploited an increasingly rapid pace and the arable land in Varberg is not an exception of this development. The issue is most topical and the discussion holds questions about a declining agricultural sector, the formal and administrative protection of arable land and because other interests of land use often is given higher priority in community development and planning.

Selenium (Se) is an essential trace element that is involved in several physiological functions in mammals. Mostly, Se is bound to proteins, many of them with enzymatic functions. A group of seleno-depending enzymes, glutathione peroxidases (GSH-Px?s), are important as antioxidants and protects against free radicals. The activity of GSH-Px is strongly regulated by Se storage in the liver.

Med ett växande fokus på ett långsiktigt hållbart samhälle som tar ansvar för miljön strävar fordonstillverkare efter att sänka energiförbrukningen på sina fordon. Detta arbete behandlar hur man kan sänka bränsleförbrukningen för lastbilar med påbyggnader. En påbyggnad kan t.ex. vara en kran, en lastväxlare eller en betongpump. En metod för att sänka energiförbrukningen är att sänka det varvtal som lastbilens dieselmotor arbetar vid.

This bachelor essay is divided into two parts, the first being a construction of a single-familyhouse and the second an in-depth study of five different isolation materials, analysed from anenergy perspective.The first part, the construction of the single-family house, has been created from knowledgeacquired during three years of studying at KTH Royal institute of Technology in Stockholm, inthe program Architecture and the Built Environment. The constructed house is a one-floorhouse of 137m2with façade plaster, situated in Borlänge, Sweden. The house has a wooden framewhich is built on a on sight cast concrete foundation, on the ground. The house?s roof is a gableroof, which has an angle of 24 degrees.

Sweden has formulated ambitious energy goals which signify that by year 2050 the energy usage should be halved. One of the objectives is the reduction of energy usage by 20% by year 2020 and that it should be compared to the usage of energy from 1995. In parallel with increased energy requirements for buildings the demand on housing conservation, by highlighting also buildings from the last 50 years as part of the building heritage, continues to enhance, which in theory means that there is a conflict between these.The law will never be able to point out unique buildings and PBL (planning and building act) is not especially concrete. The National Housing Board has tried to make this more concrete by the new BBR regulations though there are still an enormous variety of interpretations.This report deals with the conflict between conservation requirements and additional insulation of the building envelope and is limited to multi-residential buildings built between the years 1945 and 1975. It is the stock with the greatest energy consumption and that is where the big challenge lies.

Between 1965 and 1974, the Swedish Parliament decided to build one million dwellings, called Million Program. The million program buildings were erected with new, untried design solutions, in a short range of time, and at low cost. The residential buildings from that time are now greatly in need of renovation. The municipal housing company, Gavlega?rdarna, renovates and improves the energy efficiency at some of it?s apartment buildings in the district Sa?tra, Ga?vle.

The borehole heat exchangers of today suffer from poor thermal and hydrodynamic performance. The purpose of this thesis is to improve the performance of ground source heat pump systems and thermal energy storages by increasing the energy efficiency of the borehole heat exchangers. For this reason, the annular coaxial borehole heat exchanger (CBHE) has been analyzed. This type of heat exchanger is interesting in terms of both thermal and hydrodynamic performance. A model has been set up in the program Comsol Multiphysics in order to investigate the heat transfer characteristics along the borehole.

Bakgrund: Med anledning av Sveriges ökade ekologiska konsumtion så kommer denna uppsats vidare undersöka ekologisk konsumtion som fenomen och hur företag bör arbeta för att på bästa sätt lyckas nå långsiktig överlevnad med just ekologi som grund.Problem: Vilka faktorer är viktiga för företags beslut om marknadsföringsstrategier gällande ekologiska varor, för att nå långsiktig överlevnad?Syfte: Syftet med den här uppsatsen är att analysera och utvärdera konsumentbeteende med avseende på ekologisk konsumtion. Metod: Undersökningen är kvalitativ och kommer att bearbetas utefter en hermeneutisk och systemteoretisk ansats. För att kunna svara till problem och syfte kommer befintliga teorier att användas. Teoretiska perspektiv: Utbytesperspektiv, utvecklingsperspektiv Teorier: Mervärdesteorin, involveringsteorin, marknadsföringsmixen, konsumentbeteende, totalkommunikation, värdekedja och värdestjärna.Empiri: För det empiriska underlaget har sju stycken konsumenter och en branschrepresentant intervjuats.Analys: Empirin har analyserats utefter de faktorer författarna givit som centrala för att svara till problem och syfte. Författarna har efter operationalisering kunnat dela in respondenterna i en matris baserad på involveringsgrad till ekologi. Detta för att göra det enkelt att följa uppsatsens röda tråd.Resultat: Författarna menar att det är involveringsgraden till ekologi, om den är hög, som är avgörande för konsumtion av ekologiska varor.

This report describes the master thesis project ?Weight Optimization of a Composite Chassis for a Multimodal Lightweight Vehicle? which is a part of the Master program in Naval Architecture and a part of a research project at the Centre for Naval Architecture, KTH. Demands on smart and energy efficient transport solutions are continuously increasing. In the Stockholm region the citizens are expected to increase with 25% and the road vehicles with 80% until 2030, putting high demands on the traffic system. Using a small multimodal vehicle deals with this problem and uses both the land and waterways for transportation.

With new energy directives in place, the Swedish Social Service (SSS) stands beforethe challenge how to reduce the energy demand in its locales. It is a complex matter,as the locales are rented from various property owners and it becomes a question ofhow to reduce the operational electricity and influence the property owners to workmore with energy efficiency. This thesis takes a balanced research approach in threeparts. Firstly a qualitative part in form of interviews with personnel at the SSS and itsproperty owners, secondly a quantitative part of descriptive nature in form of energystatistics and thirdly a literature review of Energy Management (EM) Supply ChainManagement(SCM), Green Supply Chain Management(GSCM) and EnviromentalPerformance Indicators (EPI). This in order to be able to give normativerecommendations of how the SSS should act to reduce its energy consumption in itslocales and provide new insights on how EM, SCM, GSCM and EPI can be applied ineffect.

Det är idag uppenbart att miljön måste skyddas för att kunna säkerställa en god livskvalitet även för kommande generationer. I samband med dessa frågor spelar byggsektorn en oerhört central roll, vilken kan hänföras till den betydande miljöpåverkan industrin har på samhällsutvecklingen idag. Byggsektorn, också kallad "40-procents-sektorn" i miljösammanhang, svarar för 40 procent av den totala energi- och materialresursanvändningen i Europa och den nordiska marknaden. Det är därmed tydligt att byggindustrin har en signifikant påverkan på individers livskvalitet och miljö, varför det är av största vikt att sektorn tar ett aktivt ansvar för en hållbar samhällsutveckling. Kunder har konstaterats utgöra en av den viktigaste intressentgruppen, som med dess miljömedvetenhet och kännedom utgör de främsta påverkande faktorerna till den gröna revolutionen.

AbstractThis thesis is the final part of the Innovation and Design Engineering Programme (180 ECTS credits)at the Faculty of Health, Nature and Engineering Science at Karlstad University. The extent of thisthesis is 22.5 ECTS credits and has been performed independently by Hannes Jernberg during thespring of 2013. Metso Paper Karlstad AB is the task maker of this project, and Arvid Johansson is thecompany Representative. Metso Paper Karlstad AB is one of the world leading developer andmanufacturer of tissue paper machines.In the current situation, the company has developed and patented a power management systembased on a Cross Flow Turbine. The current construction is limited to a paper width of 2.9 meters.The company wants to take advantage of all the opportunities provided by the patents, to develop aturbine solution paper machine with a paper width that is wider than 5.5 meters, and give the abilityto manufacture paper for lower energy consumption which is an important part of the production asit is very energy intensive.Problems arise with the increasing length of the turbine, ultimately resulting in that the deflectionbecomes too big and that the momentums, due to the increased torque the turbine blades breaks.By applying the design process, this work has resulted in a number of potential solutions to theproblem.

Environmental problems are accelerating with energy consumption and the release of greenhouse gases as the major issues. This affects landscape planning mostly through environmentally hazardous transportation and heating of buildings. In environmental work, the term "Sustainable development" is often used. This term was coined in the Bruntland report in 1987. A number of frameworks have been developed to clarify the term and to remind the user about relevant aspects of sustainability.

This study will identify the environmental impact in terms of carbon dioxide for a boiler house on behalf of Kvänum energi. The boiler central consists of a main building, which in turn contains multiple components such as boilers, pipes, etc, the boiler central uses pellets fuel. It also includes a silo and an ash container. The total weight of the boiler is about 63 tons. Each boiler has an output of 600 kW; the central includes three boilers with room for a fourth if necessary.