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449 Uppsatser om Fuel conversion - Sida 15 av 30
Ökad användning av biodrivmedel i vägtransportsektorn : en styrmedelsanalys
The Swedish road transport sector relies almost completely on fossil fuels. In 2007, as much as 96 percent of the total sales of fuels was made up of petrol and diesel, while at the same time the share of total emissions of greenhouse gases in Sweden that came from road transports amounted to close to 30 per cent. Sweden is by no means worse off than any other European country in these respects. In order to address the questions of high oil dependence and CO2 emissions the European Commission has proposed a reinforcement of the legislative framework, with a 10 percent minimum for the market share of biofuels in 2020. Furthermore, the proposed target is binding for the member states, unlike the current voluntary target of 5.75 percent by 2010.
More than doubling the usage of biofuels in only a bit more than a decade will most likely not be possible without policy interventions.
Merkostnader med vinterväghållning för Grot-transporter orsakade av väglagring.
Fuel wood is currently the third largest assortment from the forest in Sweden after pulpwood and lumber. Branches and tops i.e. logging residues are one of the assortments of fuel wood which is a common by-product after harvesting nowadays. The way to utilize, disintegrate and transport the logging residues varies between northern and southern Sweden. Branches and tops are collected throughout the year at appropriate stands, but are consumed mainly wintertime.
Gimo bruksområde - inventering och riskklassning enligt MIFO fas 1 :
This master thesis encompasses an inventory of the older industrial community of Gimo.
Investigations of the contamination situation for each industrial area were done. A risk
classification according to the Swedish Environmental Protection Agency?s ?Method of
Surveying Contaminated Sites?, phase one, followed. The risk classification was done on
areas of Iron Work, a rockwool industry and a landfill.
Gimo have had iron manufacturing from 1615 until 1945. Gimo have had two blast-furnaces
and two smithies periodically.
Masskattning av tunga fordon i realtid genom systemidentifiering
As trucks are getting more and more advanced, information about their weight has become a key factor for controlling them in a more fuel efficient and safe manner. Knowing the mass of a heavy duty vehicle in real time has been a difficult challenge for the truck manufacturers. With the processing power for electronic control units in trucks steadily increasing, more advanced algorithms for calculating the mass has been developed, but at the moment there still is a wish for better performance.Since there is a lack of good information regarding the external forces acting on the vehicle, forces that depends on the slope of the road, foundation of the road and the wind, the methods have to be able to disregard these. Such an approach, based on an indirect least square solution, has been evaluated in this thesis. The results have been promising and based on these a recommendation about further evaluation has been made..
Projekt Sunbaker : Utveckling av en solugn för bakning, en fältstudie i Namibia
Namibia, southern Africa, suffers from an energy shortage and is therefore facing severalchallenging problems. The use of firewood as fuel for cooking is common in the whole countryand has negative consequences for health and the environment. This work have focused ondeveloping a solar baking oven, calledSunbaker, adapted for Namibian families needs forbaking. The development was based on classic solar cooking limitations, specific needs forNamibia and to have a feasible manufacturability.The project started with a theoretical study in Sweden where different solar cookers, informationregarding Namibia, technical aspects and end user aspects were studied. To assess the need for asolar baking oven aMinor Field Study took place in Namibia during eight weeks in July toSeptember 2009 and resulted in a product design specification.
Att inleda ett arbete med CRO inom webbutvecklingsföretag
This study test the short-termism of companies listed on the market OMX Stockholm 30. We will use a deductive point of view where the purpose of this study is to investigate whether corporate short-term returns can be explained by the independent variables related to corporate governance and compensation practices. This is to investigate whether there is an intentional action on raising the short-term return in order to achieve a higher CEO compensation. In the study, theories dealing with corporate governance and agency theory have resulted in two hypotheses. Basic Hypothesis H1 is: if short-termism of Swedish industry due to the company's short-term returns can be explained by the independent variables related to the company's management and compensation. This hypothesis could not be verified through the quantitative study. Alternative Hypothesis H2 is: the compensation of a CEO can be explained by the independent variables related to company performance and size.
Towards sustainable rye cultivation : soil carbon and yield modelling for crop rotations with rye
Using the Introductory Carbon Balance Model, ICBM, five different crop rotations with rye
1. Rye-Ley-Ley-Rye-Beans-Rye
2. Rye-Rye-Rapeseed-Rapeseed
3. Rye-Ley-Ley-Rye-Potatoes-Rye
4. Rye-Rye-Potatoes-Wheat
5. Rye-Rye-Potatoes-Beans-Wheat-Rye-Potatoes-Rapeseed
were tested theoretically in four different cultivation scenarios
? Straw left on the field, biogas digestate added as fertilizer. Labelled ?+straw+BD?.
? Straw left on the field, only synthetic fertilizer. Labelled ?+straw-BD?.
? Straw harvested, biogas digestate added as fertilizer.
Bedömning av loggbok : Bedömning av loggbok med en uppgiftsspecifik matris
The purpose of my independent work was to develop and test a task-specific assessment matrix to the students writing logs that occurs in connection with their APL (workplace-based learning). The matrix is based on upper secondary school subject plan House building from The Swedish National Agency for Education and the four courses House building process, House building 1, House building 2 and House building 3 - conversion. Due to the matrix structure, I used the example matrix of Malmö University. The task-specific assessment must both serve as a guide for students in the implementation of the log writing, and in the evaluation of the assessment work. Both students and teachers then get a common assessment tool for evaluation.
Brännkammare för träpulver : Teoretisk analys och praktisk försök
The thesis describes a completely new biofuel system to generate particle-free heat from combustion of ash-containing biofuel particles at high temperatures.The suggested system gives opportunities to introduce biofuels in new areas.Main components in the suggested system is a heat radiating combustion chamber intended for pulverized wood, combined with regenerators to extract heat from flue gases and simultaneously preheating the combustion air.The thesis contains a description of the suggested system, theoretical considerations, calculations regarding the combustion, and includes results from tests performed.The results from calculations and tests performed concludes that the system is workable and possible to apply..
Uppföljning av plantering på nedlagd åkermark i Skåne 1991-1996 :
The study was performed for the Swedish Regional Forestry Board in Södra Götaland. The study examines broadleaf plantations on former farmland that were planted between 1991 and 1996 with subsidy payments for conversion of farmland into forest. In particular, the study reviews forests planted in 1991-92 and 1994-96.
In the early 1990s, Swedish agriculture was deregulated and direct subsides to farmers ended. The Swedish state instead granted farmers financial support and offered incentives for conversion of farmland and investments in order to make their unproductive land productive.
The state supported conversion of farmland to broadleaf forest, forest for energy biomass production, or establishment of wetlands on former farmland. The County Administrative Boards and Regional Forestry Boards together monitored the planting of broadleaf forests.
Hastighets- och positionsinterface för motorer
The environmental requirements and laws on combustion engine emissions are very tough today andthey will become even more stringent in the future. To achieve these requirements there are highdemands on the control systems for these engines. An improved precision in the measurement of anengine's speed and position gives the electronic control system an even better timing when it comes tofuel injection and ignition. This makes the engine more fuel efficient, reducing the emissions. This thesisis part of a collaborative project between Hoerbiger Control Systems and subsidiaries.
Arbetsrationalisering genom samarbete : en fallstudie
To be a part of the future we have to make a profit, one way to improve the profit margin is by
reducing the fixed costs. This paper discusses the financial results of equipment cooperatives in
crop production. Through a case study of three farms in Södermanland, we have an example of
how it can look today and how it could look tomorrow. The three farms are crop-producing farms
with slightly different orientation. Jursta Gård, 155 hectares, and Djursnäs Säteri, 215 hectares,
have grains crop and oilseed crops as the main crops, and Nibble Gård, 340 hectares, mostly have
pasturelands and some grain crops.
Ovillkorade aktieägartillskott - Analys utifrån skatteflyktslagen
Partner in a close company is taxed under special rules for private companies. This is to avoid a fiscal revenue conversion. Partner as having a major influence in the company and take out what is really earned income as dividends and thus be taxed at a significantly lower rate. The purpose of the close company rules is that a partner in labor income is taxed in the same way that an employee?s income.The problem that arises when one partner in a closely held company leave a shareholders contribution to the company which aims to raise the threshold for the shares discussed in this paper.
Rörelsekapital och lönsamhet : Finns det ett samband?
Syfte: Syftet med denna studie är att undersöka sambandet mellan rörelsekapital och lönsamhet för företag i olika storleksklasser på svenska maskintillverkande företag.Metod: Studien baseras på en kvantitativ metod för att undersöka rörelsekapitalets samband med lönsamheten. Datan som användes i studien hämtades från retriever business och uträkningarna gjordes i Microsoft Office Excel. Variablerna storlek på företag, utvecklingsfas och rörelsekapitalspolicy användes för att kategorisera datan i flertalet tester.Teori: Studiens rörelsekapitalsmått var kassacykeln och lönsamhetsmåttet var bruttovinstmarginalen.Resultat: Studiens resultat visade att det inte fanns något samband mellan rörelsekapital och lönsamhet i 13 av de 24 undersökningarna.Slutsats: Studiens slutsats är att sambandet mellan rörelsekapital och lönsamhet skiljer sig åt hos företag i olika storleksklasser på svenska maskintillverkande företag..
Gud, magin och vetenskapen : En analys av August Strindbergs Inferno
This literature review aims to investigate, expose and explain August Strindberg's religious position in his partly autobiographical work Inferno, published in Swedish in 1897, in relation to Peter Berger's socialization theory. Strindberg says in the beginning of Inferno that he goes from being an atheist, occultist and Swedenborgian to finally return to his ancestral religion, Christianity. This is questionable, as Strindberg seems to be religious in its atheistic era, and occultist during his Christian period. Strindberg's own religious views seem not always match what he portrays, compared to what he writes in his correspondence and diary entries. This literature review aims to highlight the influences of Strindberg affected to clarify his religiosity which is implicitly and explicitly depicted in Inferno.