Essays about: "Wood ash"

Showing result 31 - 35 of 55 essays containing the words Wood ash.

  1. 31. Askåterföring på skogsmark : en metaanalys om påverkan på ytvattnets syra-baskemi

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Matilda Johansson; [2014]
    Keywords : Askåterföring; skogsmark; ytvatten; försurning; ANC;

    Abstract : Uttaget av biomassa har ökat i det svenska skogsbruket. Energi från biomassa är en viktig del i att Sverige nu uppnått EU´s miljömål om att minst 50 % av vår energiförbrukning skall komma från förnyelsebara källor. I och med en ökad förbränning av biobränslen bildas också mer vedaska som idag till största del deponeras. READ MORE

  3. 32. Lantbruket som energiproducent : tekniska, ekonomiska och miljömässiga förutsättningar för fjärrvärmeproduktion med lokalt skogsbränsle

    University essay from SLU/Dept. of Energy and Technology

    Author : Emmy Petersson; [2013]
    Keywords : lantbruk; fjärrvärme; lokalt skogsbränsle; livscykelanalys; LCA; tredjepartstillträde;

    Abstract : A third party access to district heating networks has been proposed in Sweden, to increase the competition on the district heating market. Such third party access could create opportunities for the agricultural sector as an energy producer. READ MORE

  4. 33. Uppgradering av biogas med aska från trädbränslen

    University essay from SLU/Dept. of Energy and Technology

    Author : Johan Andersson; [2013]
    Keywords : biogas; småskalig uppgradering; stabilisering av aska; karbonatisering;

    Abstract : The Swedish production of biogas was 1,5 TWh 2011. About half of the production was used as vehicle fuels. The cost for upgrading biogas depends on the size of the biogas plant and its gas production. If the gas flow is low the cost will be high. READ MORE

  5. 34. 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. 35. Torrefaction and gasification of biomass. The potential of torrefaction combined with entrained-flow gasification for production of synthesis gas

    University essay from KTH/Skolan för kemivetenskap (CHE)

    Author : Anna-Maria Eriksson; [2012]
    Keywords : ;

    Abstract : Torrefaction of biomass together with gasification in entrained-flow reactors is a new possible way of producing synthesis gas. The synthesis gas can later be used for the production of renewable liquid fuels. READ MORE