Essays about: "forestry residues"

Showing result 16 - 20 of 23 essays containing the words forestry residues.

  1. 16. Propensity of bed materials used in dual fluidized beds to retain ash-forming elements from biomass fuels

    University essay from SLU/Dept. of Energy and Technology

    Author : Björn Folkeson; [2014]
    Keywords : fluidized bed; ash retention; gasification; combustion; bed material;

    Abstract : The main aim of this work was to investigate the propensity of bed materials to retain ash-forming elements from biomass under conditions relevant to dual fluidized bed gasification (DFBG). The investigation was carried out in a laboratory-scale bubbling fluidized bed reactor in which biomass was gasified with steam and the unconverted char was combusted in the temperature range 800–900 ° C. READ MORE

  3. 17. Propensity of bed materials used in dual fluidized beds to retain ash-forming elements from biomass fuels

    University essay from

    Author : Björn Folkeson; [2014]
    Keywords : Fluidized bed; ash retention; gasification; combustion; bed material; Fluidiserad bädd; askämnen; förgasning; förbränning; bäddmaterial;

    Abstract : The main aim of this work was to investigate the propensity of bed materials to retain ash-forming elements from biomass under conditions relevant to dual fluidized bed gasification (DFBG). The investigation was carried out in a laboratory-scale bubbling fluidized bed reactor in which biomass was gasified with steam and the unconverted char was combusted in the temperature range 800–900 ° C. READ MORE

  4. 18. Markskador vid GROT-uttag : en enkätstudie hos skogstjänstemän

    University essay from SLU/School for Forest Management

    Author : Peter Alenius; [2012]
    Keywords : Körskador; Biobränsle; Utbildning;

    Abstract : Forestry is increasing on an industrial scale where collection of logging residues takes a greater part. This has resulted in more machinery and heavy machinery driving in the clear felled area, this increases the risk of soil damage that will occur in the form of soil compacting and rutting in the clearings. READ MORE

  5. 19. Characterization and utilization of agroforestryresidues as energy source in Brazil

    University essay from KTH/Skolan för kemivetenskap (CHE)

    Author : Muhammad Abdul Hayee; [2012]
    Keywords : ;

    Abstract : Brazil is very much rich in agriculture and forestry. The agro industry occupies an area of 28840726 ha. The more important crops are sugarcane (7080920 ha), rice (289030 ha), wheat (1853220 ha), coconut (283205 ha), cassava (1894460 ha), corn (13767400 ha) and grass (140000 ha). These crops generated 597 million tons of residues. READ MORE

  6. 20. Can forest fuel contribute in the transition towards a sustainable society? – A cross-disciplinary analysis of economic, environmental and political aspects across Sweden

    University essay from Lunds universitet/Miljövetenskaplig utbildning

    Author : Lina Hällström; [2012]
    Keywords : Earth and Environmental Sciences;

    Abstract : This thesis is a pilot study for cross-disciplinary analysis with the aim to compare the prerequisites for sustainable harvesting of forest residues/fuels in southern and northern Sweden from both environmental and societal perspectives. It has three main focus areas: (A) Potential to produce forest fuels; (B) Effects on the nutrient budget; and (C) Practical aspects and attitudes within the forestry sector. READ MORE