Sökning: "Forest fuels"

Visar resultat 21 - 25 av 100 avhandlingar innehållade orden Forest fuels.

  1. 21. Cost-effective cultivation of lodgepole pine for biorefinery applications

    Författare :Ingegerd Backlund; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The overall objective was to evaluate the scope for the cost-effective cultivation of lodgepole pine (Pinus contorta, PC) stands in a way that would enable early biomass harvesting to supply raw material for biorefineries. Commercial direct seeded PC stands were shown to produce 200 m3/ha of stemwood or 100 tons of d.w. LÄS MER

  3. 22. Potentials and wood fuel quality of logging residues from indigenous and planted forests in Mozambique

    Författare :Rosta Mate; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Search for complementary and alternative renewable energy sources is imperative to meet the current growing demand for wood fuel and for diversification of electricity supply sources in Mozambique. Logging residues from timber harvesting operations and whole tree biomass from short rotation coppice (SRC) are available options. LÄS MER

  4. 23. Evaluation of emerging forest-industry integrated biorefineries : Exploring strategies for robust performance in face of future uncertainties

    Författare :Jonas Zetterholm; Elisabeth Wetterlund; Joakim Lundgren; Johanna Mossberg; Yawer Jafri; Damiana Chinese; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biorefinery; Biomass; Forest industry; Biofuels; Investment; Gasification; Fast pyrolysis; Energiteknik; Energy Engineering;

    Sammanfattning : Biorefineries have been promoted to reduce dependency on fossil resources, increase self-sufficiency, and revitalise rural areas. Commercial deployment of forest-based biorefineries has been slow, although academic research has identified several technology options as promising in terms of both costs and resource usage. LÄS MER

  5. 24. Implications of feedstock diversity on forest-based ethanol production

    Författare :Balazs Franko; Avdelningen för kemiteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ethanol; Lignocellulose; Softwood; Spruce; Bark; Forest residues; Steam pretreatment; Enzymatic hydrolysis;

    Sammanfattning : The utilization of lignocellulosic biomass to produce biofuels, such as bioethanol, has the potential to provide a sustainable alternative to fossil fuels, and thus mitigate greenhouse gas emissions from the transportation sector.Forest biomass is expected to be a significant source of such biomass, as it can serve as an abundant and sustainable feedstock for bioethanol production. LÄS MER

  7. 25. Forest Dependence in Developing Countries : Analysis of household perceptions, energy, and food security in Tanzania

    Författare :Matilda Ntiyakunze Stanslaus; Jesper Stage; Razack Lokina; Lars Hultkrantz; Luleå tekniska universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; Nationalekonomi;

    Sammanfattning : This thesis explores forest dependence in developing countries by examining households’ perceptions about their forest use and dependence, energy choices and the links between forests and food security in a case study of Tanzania. Paper (I) reviews selected economic literature related to the role of household heterogeneities on forest dependence and on energy choices. LÄS MER