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This thesis was commissioned by Tekniska verken, Energy Division with the overall aim to investigate the concept of environmental debt and what it means for a business. Furthermore, a sustainable risk and responsibility investigation shall be carried out on the concerned areas …
Omställningen till ett mer hållbart samhälle spelar en betydande roll för att uppnå deEuropeiska mål och klimatavtalen, 20/20/20-målen. Ett av målen anger att andelen förnybarenergi ska öka vilket ställer högre krav på elnätets kvalitét. Framtidens elnät måste blimodernare, att …
Med hänsyn till elprisets variationer
… of electricity is a combination of economic and technological development, energy prices, economic structure, population changes and weather. Different scenarios for the electricity price were therefore examined. In the base case, the electricity price was given by the Nord Pool …
… for environmentally friendly and sustainable construction processes and energy-efficient designs are nowadays common, which is something that should motivate increased usage of wood as a renewable material. For the glulam industry to increase its sales, improve profitability and …
This study was carried out at the request of the bio energy company Naturbränsle. The company handles annually 750 000 m3 of chips from logging residues from a large area, from Östergötland in the south to Härjedalen in the north. In that area, about 50 bio fuel plants are …
… tank used to allow different operating modes. When there is an excess of solar energy from the solar collectors the borehole should be recharged and be stored in the ground for a shorter period of time. The heat pump refrigerants should also be preheated in the storage tank …
Combustion of fossil fuels is today the dominating source of energy. During combustion,carbon dioxide is formed. The carbon dioxide accumulates in the atmosphere,which raises the global average temperature on earth through the so called greenhouseeffect. The only way to reduce …
En studie av borrhålets temperaturinverkan på värmepumpens värmefaktor
… borrhål. Den internationella benämningen för denna teknik är ”Borehole Thermal Energy Storage, BTES”. Rapporten har behandlat en friliggande enplansvilla med ett befintligt bergvärmesystem som tillämpar termisk energilagring i bergvärmesystemets borrhål med solvärme. Två …
… equipment in building 111 it can be mentioned that it is both old and energy demanding which leads to increased energy costs. If a change of existing equipment is being made, TPPM AB can save approximately 70 000 SEK per year at a temperature of +15 °C. This correspond a …
Hydropower is an important source of energy in Sweden and accounts for about 46 % of the total energy production. Sweden has about 1 200 hydropower plants and with the intention of raising the pressure head of the water and to store water, dams are built by the power plants. The …
Summary Today energy prices are rising. As a result biomass fuel is getting more and more interesting. Wood chips is very popular, but also straw from grain production is on the table. Lunds Energi AB project a combined power and heating plant in Örtofta out of Lund. Wood chips …
En studie av energisystemet och effektiviseringsmöjligheter
Sala Silvergruva AB är ett av många företag som just nu kämpar med höga energi-kostnader. Denna rapport undersöker vilka möjligheter det finns att skapa ett hållbart energisystem i Sala Silvergruva med avseende på ekonomi, miljö samt sociala aspekter. Rapporten undersöker nio …
a study about the production environment and international competitiveness of wood pellets from British Columbia
… 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 …
För att en kvalitativ och driftsäker kraftomvandling från vind till elkraft skall erhållas ställs krav på en mängd olika faktorer. Klimatologiska och tekniska faktorer kräver korrekt dimensionering och anpassning av omvandlingstekniken för att största möjliga energimängd skall …
Test av olika råvarumixer i pelletstillverkningen vid Rindi Västerdala AB:s bioenergikombinat i Vansbro
… from sawmills and wood industry. At Rindi Västerdala AB's combined bio energy plant in Vansbro fuel pellets are produced, while the waste heat from the process is used for district heating. The pellets are produced from sawdust, wood shavings and dry wood chips that is dried …
