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802 Uppsatser om Electricity Programme - Sida 39 av 54
Livscykelanalys av en ekologisk bomullsskjorta - miljöpåverkan från vagga till grav
This study includes a life cycle assessment, LCA, on an ecological produced cotton shirt for the company Reflective Circle, which designs ethical and ecological clothes.Initially were cotton farming and textile production studied to gather basic knowledge about the processes. Since this shirt is being ecological produced in the whole production chain, we studied what an ecological production means, but also how a conventional production works. When this was done we could start to discuss the differences and similarities between the production of the shirt and general conventional production.When the LCA was first initiated, the main focus was on the green house gas emissions from the manure at the cultivation. Thereafter the process steps such as picking, ginning, carding, spinning, weaving and sewing were being studied. The picking is done by hand, but the rest of the processes are handed by machines which consumes energy.
Får idrottande elever högre betyg? : en fallstudie på tre samhällsvetenskapliga program för att visa eventuella samband mellan fysisk aktivitet och höga betyg
Abstract AimThe purpose of this study has been to investigate the possible differences in grades and attitudes towards further studies that can be explained by the student?s level of physical activity. The questions we wanted answers to were:- Does students in more sports-oriented programs have better grades than students in more theoretical programs?- Is there a relationship between physical activity and study-results?- Are there any differences in attitudes towards further studies for students at the different programs?- Which other variables could be affecting the students grades?Method The extent of this study has included 3 municipal schools and 6 classes (2 from each school) ? in all 119 students and 6 teachers. 3 different social sciences programs have participated ? two sports-oriented and one without any sports-oriented concentration .
En jämförelse av RDF och avfall som förbränningsbränsle
In the EU the amount of waste increased by 14 percent during the years 2000 to 2010. EU?s target to reduce waste generation runs parallel with the aim of increasing the efficiency and profitability aligned with energy recovery. In Sweden the energy recovery through incineration is increasing steadily, and 46 percent of the municipal solid waste (MSW) is treated by combustion. This report aims to examine the profitability of processing MSW into Refuse Derived Fuel (RDF) from an economic-, energy- and environmental perspective.
Diversities of Diversities-Fluctuating talk
Title: Diversities of diversity - fluctuating talk, meaning and practice of diversitySeminar date: 06.02.08 Course: Masters thesis in Business Administration, Programme for Managing People, Knowledge and Change, 15 University Credit Points (15 ECTS). Authors: Björt Ólafsdóttir & Clarissa Sia Choon YenAdvisors: Mats Alvesson & Susanne LundholmFive key words: Diversity, Discourses, Hypocrisy, Comparison, National contextPurpose: To identify and compare discourses around diversity within two companies operating in two distinct national contexts. One originated from and still situated in Iceland, while the other is a subsidiary for Asia-Pacific market in Singapore with American values from its headquarters in United States. We wish to explore what are the meanings and implications of diversity for the employees of each company, how their discourses on diversity reflect hypocrisy in the organizations and if and how national context has an impact on discourse on diversity.Methodology: Interviews were conducted, transcribed and codified. Comparison and evaluation of the different discourses were examined around diversity and in the talk of interviewees within the two companies.
Integrerad hästanläggning : ridhus/stall
Today there is an increasing market for businesses concerning horses, and since we are already running such establishments we sort of speak already have a finger in the pie. Due tothe increasing competition and demands, new and more practical constructions have become a necessity.
In doing this project I wanted to make a comparison between having a stable integrated with a manege and having both constructions kept separate. I wanted to compare different layout and make an estimate of costs to see which solution would be less expensive and better with regard to working environment. I will further also deal with different ventilation-systems andlight transmissions.
Utveckling av analysverktyg för verksamheters CO2-utsläpp och energianvändning
With increasing energy prices and increased focus on the environment we saw the need for companies to get control over their energy use and their emission of carbon dioxid. An analysis tool that integrates both these areas is, with our knowledge, not available on the market today. Therefore, our project became to develop such a tool.By doing this degree project we would like to clarify that energy consumption and environmental impact are integrated. The less energy consumed by today?s society the smaller the environmental impact will be.
Polletten har inte trillat ner, ännu? Bankernas hållbarhetsredovisning håller inte måttet!
The voluntary none-financial sustainability report has become a trend within accounting. The environmental issues used to be driven by activists only, but lately it has moved in to the general agenda in many companies. Investors are starting to put more attention to the sustainability reporting as it is considered to add value to the company. There are several standard guidelines to be used when producing a sustainability report, one example is the GRI´s Guidelines that takes the following three dimensions in consideration: economy, environment and social. This Guideline is from an international perspective considered to be of good accounting practice (Ljungdahl 2008).
Utvärdering av jetomrörning : En studie gällande utvärdering av omrörningssystem vid Ekeby reningsverk
Biogas is a renewable energy produced through anaerobic digestion, which means that organic matter is degraded by microorganisms under anaerobic conditions. The produced biogas can then be used for cogeneration, electricity, heat or upgraded to vehicle gas. Eskilstuna Energy & Environment AB has four digesters at Ekeby water sewage treatment plant, Eskilstuna. One of the biogas reactor (RK4) is equipped with a jet-mixing system while the remaining digester uses top-mixing. The mixing system is an important parameter to achieve optimum operating conditions for the process regarding gas production and degree of digestion.
Representativa testnät försvenska eldistributionsnät
This project was started within the Market-Design programme of Elforsk, with the aim of developing representative test systems of Swedish distribution networks. Using such test systems as a basis for reliability and customer interruption cost calculations makes it feasible to analyse the network tariff regulation of Swedish power istribution companies. In particular, it enables studies of the incentives for companies to invest in system reliability. Until now, the available test systems are either not representative of Swedish conditions, or too small in scale and limited in function.Within this project we have created two test systems. In order to represent the diversity of actual Swedish distribution networks, we have created one test system for urban environments and another for rural environments.
Redesign of an existing apartment block in Kv Preussen to passive house
Passive houses are a relatively new concept in Sweden and by that it is meant a house without a traditional heating system. The most acknowledged passive house project is the terrace houses in Lindås, Gothenburg, which we have used as a reference. This project concerns a square apartment block. So far, no square apartment block has been built as a passive house in Sweden.The common opinion in the construction industry is that it is not economical to build extremely energy efficient houses. With Peab as commissioner our task was to investigate if that is true, if regarding the construction of a multi storey house as a passive houseMidroc, now owned by Peab, constructed in the block of Preussen in Jönköping during 2004-2005 four houses, with 132 apartments distributed on seven floors.
Småskalig biobränsleeldad kraftvärmeproduktion : teknik och investeringsutrymme
To achieve the requirements to decrease emissions of greenhouse gases by 20 % by 2020, Swedenneeds to increase its use of bioenergy. In doing so it seems natural that those who already haveaccess to large amounts of biofuels in the form of by-products such as straw, wood chips anddigestible materials take advantage of these assets locally. By combining production of heat withpower production at the farm it may be possible to not only reduce the direct use of fossil fuel forheating but also reduce energy costs.The purpose was to simulate different cases of using a small scale biofueled combined heat andpower plant for farm-based systems. A MatLab-model was developed and used to draw conclusionsabout the costs for production of heat and electricity with different conversion technologies.The model uses climate data to simulate the variations in heat energy demand on a day-to-day basis.The given heat demand is the base of the simulation and from this the possible electric output iscalculated. This study has focused on the impact of the following properties: electric-, heat- andtotal efficiency, fuel, fuel price and specific fuel requirements.
Möte i månsken : ett belysningsförslag för Fyristorg
The object of the thesis is to propose a new lighting plan
for the square Fyristorg in Uppsala, and to describe the
process which have led to it.
It all started when I choosed the place together with the
municipality of Uppsala.
I have been doing research and analyzed how the place
and it´s existing lighting works both during different times
of the day and also in the evening.
After researching the place and it´s existing lighting I´ve
decided to put up the following goals fot the new lighting
design.
1. The general light level of the place shall be experienced
as higher than today.
2. The light level of the place shall be adapted to the light
levels of surrounding places.
3. The lighting shall be free from glare.
4. The lighting shall be adapted to people passing by.
5.The lighting shall be adapted to the surrounding
architecture.
6.
Hans Alséns arkiv 1986 - 1992 : Att ordna och förteckna en landshövdings handlingar
Hans Olof Alsén, born 16 august 1926, is a Swedish Social Democrat politician who served as the County Governor of Uppsala from 1986 to 1992. During the 1960s, -70s and -80s he had several political commissions including Member of Parliament and government Undersecretary. In addition he had numerous Board of Directors assignments in different business corporations as well as in non commercial associations both prior to, during and after the County Governor period.This paper describes the organizing and cataloguing of Hans Alsén's personal archives. The documents at hand were deposited at the regional state archives (Landsarkivet) in Uppsala in 2008 and 2009 by Alsén himself. The documents almost exclusively cover the County Governor years 1986-1992.
Hållbarhetsredovisningens budskap : en komparativ studie av Vattenfall och E.ON
Companies today are expected to communicate their responsibility to the world around them. Society?s expectations differ and stakeholders are demanding that companies act responsibly on matters related to climate, work environment and human rights. The purpose of sustainability reports is that companies should measure, present and take responsibility in relation to their internal and external stakeholders. It is intended that a reasonable picture of the company's sustainability performance should be communicated, containing both positive and negative effects.Companies efforts with sustainability issues is industry-dependent and industries with significant environmental problems perform the most advanced environmental statement.
Förorten brinner! : En studie av alternativa medier i Stockholms förorter
In this study we examine five selected media organisations with different forms of productionplatforms that all appear in Stockholm's southern and western suburbs, which are part of themillion-construction project. Their stated ambition is to present an alternative image of thesuburbs than that found in mainstream media. They want to portray themselves instead ofconstantly being described by others.The purpose of the study is to gain a better understanding of the reason for the emergenceof these media, their visions according to the media producers themselves, and how theyrelate to mainstream media. The study is based on a theoretical framework that focuses ondiverse approaches of alternative media and the journalists' role in a democratic society.The wide data analysis from qualitative informant interviews, with small observations as acomplement, showed results indicating criticism against the misrepresentation of Stockholmsuburbs in mainstream media. Furthermore the results show that the overall dissatisfaction ofthis misrepresentation is one of the main reasons why the different media, which are bothrepresented by citizens and journalists, were founded.