Search for dissertations about: "Wood pellet"

Showing result 16 - 20 of 33 swedish dissertations containing the words Wood pellet.

  2. 16. Measurement of Self-Heating of Biomass Pellets using Isothermal Calorimetry

    Author : Ida Larsson; Karin Granström; Anders Lönnermark; Per Blomqvist; Patrick van Hees; Karlstads universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; isothermal calorimetry; biomass pellets; wood pellets; self-heating; reactivity; screening test; isoterm kalorimetri; pellets; biomassa; självuppvärmning; reaktivitet; screeningtest; Miljö- och energisystem; Environmental and Energy Systems;

    Abstract : Self-heating in storage facilities of biomass pellet can lead to spontaneous combustion. This has resulted in many fires over the years, causing both financial and environmental losses.In order to assess the risk for spontaneous combustion of biomass pellets during storage, it is important to know how prone the fuel is to self-heating, i.e. READ MORE

  4. 17. Residential biomass combustion - emissions of organic compounds to air from wood pellets and other new alternatives

    Author : Maria Olsson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Burning; methoxy¬phenol; benzene; stove; ecolabel; oats; wheat straw; firewood; boiler; hydrocarbon; smoke; peat;

    Abstract : It is important to increase the use of biofuels for residential heating in order to decrease the use of fossil fuels and their impact on global warming. The smoke from the combustion of biomass contains a large number of compounds, which to varying degrees can affect the environment and human health. READ MORE

  5. 18. Time-dependent climate impact of production and use of wood pellets from short rotation forestry and logging residues

    Author : Charlotta Porsö; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Anthropogenic greenhouse gas (GHG) emissions are the main cause of climate change, with combustion of fossil fuels and land use changes being the main source of emissions. Wood pellets are considered a viable replacement for fossil fuels. Therefore this thesis sought to increase the knowledge base for planning new wood pellet systems. READ MORE

  6. 19. Comparative study of residue pellets from cane sugar and palm-oil industries with commercial wood pellets, applied in downdraft gasification

    Author : Catharina Erlich; Torsten Fransson; Björn Zethraeus; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; energy engineering; Mechanical and thermal engineering; Mekanisk och termisk energiteknik;

    Abstract : While biomass utilization for energy conversion in the industrialized nations is being largely developed, highly efficient and environmentally friendly, many tropical countries still use biomass at low efficiencies and high emission levels. The main reasons for these gaps are both political and technological: the energy markets are different, the Gross National Product (GDP) differs widely, and the feedstock differs in form and conversion behaviour. READ MORE

  7. 20. Particularly harmful particles? A study of airborne particles with a focus on genotoxicity and oxidative stress

    Author : Hanna Karlsson; Karolinska Institutet; Karolinska Institutet; []
    Keywords : particulate matter; particles; genotoxicity; oxidative stress; DNA damage; inflammation; subway; tire-road; wood;

    Abstract : Today it is well established that particulate matter (PM) cause a wide range of health effects. The underlying mechanisms likely include inflammation, oxidative stress and genotoxicity. There is however a lack of knowledge regarding how particles from different sources contribute to these effects. READ MORE