Search for essays about: "Biofuels"

Showing result 1 - 5 of 31 essays containing the word Biofuels.

  2. 1. Thermodynamic modelling of biomass based power production

    University essay from Lunds universitet/Institutionen för Energivetenskaper

    Author : Emil Bjäreborn; Fredrik Åkerman; [2010]
    Keywords : biomass fuelsgas turbinesteam cycle; Technology and Engineering;

    Abstract : With today’s growing awareness of human caused climate changes there is a big interest to replace fossil fuels with renewable fuel sources, such as biomass fuels. For power production biomass are traditionally combusted in small scale facilities which uses a steam cycle. The electrical efficiencies for such facilities are relatively low. READ MORE

  4. 2. LCA of transport fuels from short rotation forestry in a long term perspective

    University essay from Chalmers tekniska högskola/Institutionen för energi och miljö

    Author : Markus Göranson; [2009]
    Keywords : ;

    Abstract : A life cycle assessment (LCA) has been carried out on biofuels for the transportation sector inSweden originating from a feedstock of domestically farmed wood. When talking aboutbiofuels today, there is a distinction between 1st generation's biofuels and 2nd generation'sbiofuels. Wood is often referred to as 2nd generation's biofuel feedstock. READ MORE

  5. 3. Wooden fuel pellets : raw material composition, mechanical strength, moisture content, particle size distribution and processing

    University essay from Luleå tekniska universitet/LTU Skellefteå/Träteknologi

    Author : Carrie Yee Ching Jonsson; [2009]
    Keywords : Wooden fuel pellets; fuel pellets; wood pellets; mechanical strength; mechanical durability; durability; moisture content of pellets; particle size distribution; fuel pellets process; pellets production; peat; peat pellets; biopellets; bioenergy; power and heating; multivariate statistics; pellets technology; biofuels;

    Abstract : There are many factors that affect the quality of wooden fuel pellets, from raw materials to pellet production process. Among the factors, raw materials compositions, mechanical durability, moisture contents, and particle size distribution were studied. READ MORE

  6. 4. How to socially assess biofuels:a case study of the UNEP/SETAC Code of Practice for social-economical LCA

    University essay from Luleå tekniska universitet/Industriell ekonomi och samhällsvetenskap/Kvalitets- & miljöledning

    Author : Madeleine Blom; Christine Solmar; [2009]
    Keywords : Social life cycle assessment; sLCA; biofuels; social indicators;

    Abstract : Due to the escalating environmental debate, the interest and investments in new and green fuel alternatives have never been larger. However, concerns have increased over the effects that the production of biofuels might have, both on the environment and on social issues. READ MORE

  7. 5. Liquid diesel biofuel production in Sweden : a study of producers using forestry- or agricultural sector feedstock

    University essay from SLU/Dept. of Forest Products

    Author : Erik Andræ; [2009]
    Keywords : Transportation fuel; strategy; biodiesel; synthetic diesel; crude tall diesel;

    Abstract : The transportation sector is the only sector of the Swedish society that is still increasing the emissions of carbon dioxide and other green house gases. Diesel fuel represents one of the fuels that contributes to these emissions and the use of diesel fuels is increasing every year. READ MORE