På senare år har klimatoron tilltagit i världen, ökade utsläpp av växthusgaser och stigande medeltemperaturer har fått ett stort utrymme på den politiska agendan. För att möta oron har man inom Europeiska Unionen enats om ett antal klimatmål som skall uppfyllas till år 2020. Sverige har under lång tid förlitat sig på skogsindustrin och därigenom byggt upp en stark industri och forskningsverksamhet. Skogsbaserad bioenergi står idag för 90 % av den bioenergi som förbrukas i Sverige. Råvaruöverskottet finns idag i norrlands inland men det stora behovet finns i storstadsregionerna i södra Sverige. Det finns dock vissa problem med transport och lagring av skogsbaserad biomassa och behovet av innovationer är därför stort. Torrefiering är en förädlingsmetod där energidensiteten höjs och lagringsegenskaperna förbättras genom rostning av biomassa i en syrefrimiljö. Syftet med denna studie är att utifrån ett företagsekonomiskt perspektiv undersöka potentialen hos torrefierad pellets under svenska förhållanden. I vår investeringskalkyl framgår det att break even-punkten för priset för torrefierad pellets är 367,55 kr/MWh. Känslighetsanalysen uppvisar att råvarukostnaden har störst påverkan på nettonuvärdet, följt av driftskostnaden och pris som hade samma påverkan, därefter kommer räntan och sist investeringskostnaden. Våra beräkningar visar att det finns en skillnad i tågtransportkostnad mellan torrefierad pellets och konventionell pellets per transporterad MWh.

I fokus för den här studien står en maskininvestering och råvarorna för pellets, deras täckningsbidrag samt kostnaderna för att tillverka pellets när olika råvaror tas i anspråk. Uppsatsen ger också läsaren en inblick i marknaden för pellets och konkurrensen om träråvaran. I korthet beskrivs också produktions- processen. Underlaget för den bidragskalkyl avseende råvara och investeringskalkyl på flisaggregatet har hämtats från biobränsleföretaget Laxå Pellets, Bruks-Klöckner AB och Allan Bruks AB-CBI. Med hjälp av bidragskalkylen jämförs kostnaderna för potentiella råvaror som kan pelleteras.

The prevailing urban migration is a worldwide process. This results in growing cities and a diminishing proportion of people living in the countryside. As the urbanization continues a large amount of the world?s population is expected to live in urban settlements of informal character by 2050. Green Belt has for many years been used to control urban growth and to secure the sustention of larger green areas around towns and cities.

Often, the green is handled as an opposite to the built, but if it could be seen as a part of the built and the society, the planning will be easier to handle. The thesis work wants to create a method that treats villages in an analytic way in a context; with green, blur, grey and all the other colors that together are the completeness.This master's thesis is made to be used as foundation in detail plannng in the municipality of Örkelljunga. Target audience is on one hand those who work with planning and green matters in Örkelljunga municipality, but also other planners who work with landscape.Literature in the field of green city planning has been studied and 30 methods for analysis have been valued. The method for analysis that has been used in this work is a merging of ten different methods and has included literature studies, sketches, interviews and work on spot. The ten methods are consciously chosen to together make one comprehensive and true image of the village, as far as it is possible.

I takt med stigande oljepriser har ett av Sveriges största odlingsföretag Svegro bestämt sig för att byta ut sitt nuvarande värmesystem. Svegro består idag av växthus på ca 50 000 m2 på Thorslunda gård, Färingsö.Uppvärmningen sker idag med hjälp av oljeeldning samt den värmeenergi som omvandlas från växthuslampor. Det nya värmesystemet kommer att använda sig av ett annat förbränningsalternativ än mineralolja. Detta kommer göra det möjligt för Svegro att sänka sina energikostnader och minska miljöpåverkan genom reducerat koldioxidutsläpp. Kraven som ställs är att det nya värmesystemet ska kunna integreras med det befintliga värmesystemet och samtidigt leva upp till dagens ekologiska krav.

To reach an Ecological Sustainable Development, Sweden has established environmental quality objectives. Green spaces are attractive for exploitation and in Sweden the access to large jointly green spaces has decreased, which has impact on humans recreation and the biodiversity. The economic aspect has great impact on the planning process which gives indications that the environmental objective may collide with other sector goals within the municipality. The thesis overall aim is to see how the management by objectives for the green spaces implements and how the green spaces is handled in the planning process in a specific case. The thesis builds on a content analysis, strategic interviews and a case study.

The aim of the thesis is to analyze the role of regional development planning concerning a regional perspective of green structure and to reflect on its future role. The target group of the study is foremost practitioners but also students of regional planning and development. Three questions are examined. 1) What view concerning green structure has the regional planning body of Stockholm County Council (RTK) communicated through the years? 2) Has this view contributed to generating a common understanding concerning green structure among the actors in the county? 3) Has this common understanding been referred to by actors in discussions concerning how this green structure should develop? The empirical material consists of documents from rtk, the County Administrative Board, the municipalities of the county, a network of ngo:s, as well as interviews with representatives from the above mentioned organizations.

Often, the green is handled as an opposite to the built, but if it could be seen as a part of the built and the society, the planning will be easier to handle. The thesis work wants to create a method that treats villages in an analytic way in a context; with green, blur, grey and all the other colors that together are the completeness.This master's thesis is made to be used as foundation in detail plannng in the municipality of Örkelljunga. Target audience is on one hand those who work with planning and green matters in Örkelljunga municipality, but also other planners who work with landscape.Literature in the field of green city planning has been studied and 30 methods for analysis have been valued. The method for analysis that has been used in this work is a merging of ten different methods and has included literature studies, sketches, interviews and work on spot. The ten methods are consciously chosen to together make one comprehensive and true image of the village, as far as it is possible.

This report summarizes the development of a calculation program estimating the profitability of converting a peak-load oil-fired boiler to pellets. To convert an oil-fired boiler to pellets a new fuel handling system must be designed. Changes also have to be made to some other components. Since there are many different techniques for transportation, storage and treatment of the fuel only the most interesting techniques from Swecos experience and interest were included in the study.The capacity of the different parts in the system was dimensioned based on the power of the boiler after conversion. To estimate prices, installed power and dimensions manufacturers and distributers were contacted.

The examination has been performed at Bjerking AB, which is an architectural and engineering company. Bjerking AB has the ambition to be a member of Green Building.The Green Building program developed in year 2005 by The European Commission, the program is an environmental system with the aim to improving energy efficiency within the sectors of non-residential buildings. The minimum requirements to participate the program are following: in new-built buildings the calculated energy consumption must be 25 % lower than the requirements in the BBR (Building regulations) and in refurbishment the reduction must be 25 % lower than before the optimization.The aim of this study has been to examine and review the company Bjerking AB's energy efficiency work in the project of building the school/kindergarten S:ta Maria Alsike, where the goal is to get this building Green Building classed. A description of requirements to become a member of the Green Building has also accomplished in the thesis.The methods performed in this study are literature review, searches on the Internet, studies on the project database for facts/values, calculation of energy consumption and interviews of members of the Green Building. The following issues have been dealt with in the report;-          Did the building in the project manage the requirement to achieve an   energy consumption that is 25% lower than the requirements in BBR?-          What technical measures/system was selected in the building?-          What kind of cooperation was the project based on?-          What is required for consultancy companies and real estate owners to become members of the Green Building?The study of the project and calculation of estimated energy consumption in the building, give the result 47 kWh/m2, year.

Den här uppsatsen behandlar kopplingen mellan female empowerment och demokratisering. Med utgångspunkt i en maximalistisk definition av demokrati, hävdas att female empowerment är en nödvändig förutsättning för att en demokratiseringsprocess ska kunna lyckas.I uppsatsen analyseras den kenyanska miljöorganisationen Green Belt Movement:s arbete utifrån teorier om female empowerment. Kvinnor i Kenya är traditionellt underordnade männen och saknar inflytande och möjligheter att styra över sina egna liv. Inom Green Belt Movement har kvinnor fått en ledande roll och givits möjligheten att påverka sin situation. Analysen slår fast att organisationen har lyckats skapa female empowerment i flera aspekter bland de kvinnor som är aktiva i dess verksamhet.

AbstractIn my study I have investigated how a constructed outdoor green environment can beused, managed and how it works. The study also investigates the concept of socialsustainability, where, for example, civil dialogue is a method to promote this. Thisinvestigation mainly gives account for the inhabitants viewpoint but also a gardenersperspective. The study focuses on the planning process of the study object, what theoutcome has been and how the users of the green environment, think about the result. Inthe process there has been a strong concern of involving the residents and others usingthe area.

This thesis is about sustainability within chemistry, the so-called, green chemistry. With this work  I seek to combine green chemistry with sustainable  development  and find methods for teaching green chemistry in a laboratory environement.  I have designed  and tested two labs with ingredients of green  chemistry and sustainable development in my study. I wanted to determine if my design model  leads to conception for the students. The students have through forms and interviews declared their perspective on the education and their conception. In a laboratory environment the pros of a laboratory way of work should be recognized.

REFERATI tusentals år har hästen varit nära människan och tjänat som krigs-, arbets- och sportdjur. När hästen domesticerades för tusentals år sedan begränsades dess tillvaro till mindre utrymmen för att vara lättillgängliga. Hästen ska ha tillgång till en ren och torr liggplats som dagligen rengörs. De vanligaste strömedlen är spån, halm och torv. På senare år har det kommit fram nya strömaterial av restprodukter från pappersindustrin.

The global wood pellet market has seen a rapid growth after the adoption of the Kyoto protocol and the renewable energy incentives created within the European Union. The global consumption of wood pellets reached 13,5 million tonnes in 2010 and several experts estimate the consumption to be between 35-50 million tonnes by 2020. These forescasts raise the questions which regions that can supply this vast amount of wood pellets and what the conditions are for producing it. This study evaluates the conditions for wood pellet production and export from British Columbia, on Canada?s west coast, focusing on existing industry structure, raw material supply and the distribution chain.