Sökning: "Solid biomass fuels"

Visar resultat 1 - 5 av 28 uppsatser innehållade orden Solid biomass fuels.

  1. 1. Increase of biogas production by incorporating residual streams from agriculture

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Stephanie Fjäll; [2022]
    Nyckelord :Anaerobic digestion; Agricultural residue; Lignocellulosic biomass; Mechanical pretreatment; Biogas production; Biorefinery; Chemical engineering; Agriculture and Food Sciences; Technology and Engineering;

    Sammanfattning : To expand the biogas production in Region Västra Götaland (RVG), residual streams from the agricultural sector can function as a large-scale supplier of biomass. The production of biogas decreases the dependence of fossil fuels and the digestate that is formed can also be returned to the agricultural sector, creating a closed loop. LÄS MER

  3. 2. Skogliga biobränslens roll i Stockholm Exergis framtida strategi

    Kandidat-uppsats, KTH/Industriell ekonomi och organisation (Inst.)

    Författare :Ellinor Danielsson; Jenny Ekman; [2021]
    Nyckelord :solid woody biofuels; district heating; Stockholm Exergi; carbon neutrality; carbon payback time; RED II; forest certication systems; supply chains; price developments; fasta skogliga biobranslen; fjarrvarme; Stockholm Exergi; koldioxidneutralitet; carbon payback time; RED II; skogscertieringssystem; leveranskedjor; prisutveckling;

    Sammanfattning : Studien syftade till att ge en rekommendation angående hur fjärrvärmebolaget Stockholm Exergi bör utforma sin framtida strategi beträffande fasta oförädlade skogliga biobräanslen. Genom litteraturstudier och intervjuer utreddes dessa bränslens konkurrenskraft utifrån perspektiven klimatneutralitet, politiska direktiv och styrmedel, leveranssäkerhet samt lönsamhet. LÄS MER

  4. 3. Fractionation of Wheat Bran for Utilisation in Biorefinery

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Gabriella Haag; [2021]
    Nyckelord :Wheat bran; biorefinery; chemical engineering; vetekli; bioraffinaderi; extraction; Technology and Engineering;

    Sammanfattning : Wheat bran is a by-product from the production of wheat flour. Nowadays wheat bran is mostly used as feed for animals, in the food and baking industry or it is simply burned in open air. LÄS MER

  5. 4. Indoor Air Pollution, Passive Ventilation Strategies and Thermal Comfort in Nepal

    Master-uppsats, Lunds universitet/Institutionen för arkitektur och byggd miljö

    Författare :Marianne Löwgren; [2019]
    Nyckelord :Energy poverty; Solid biomass fuels; Improved cooking stoves; Indoor air pollution; Carbon monoxide; Vernacular architecture; Passive ventilation; Air exchange rate; Indoor air quality; Thermal comfort; Operative temperature; Sustainable societal development; Social Sciences; Technology and Engineering;

    Sammanfattning : Indoor Air Pollution (IAP) resulting from indoor burning of solid biomass fuels in poorly ventilated kitchens is a severe health risk in parts of the world where energy poverty is prevalent. Passive ventilation, i.e. taking advantage of naturally induced airflow has been suggested as crucial in reducing IAP levels below safe limits. LÄS MER

  7. 5. Will substituting fossil fuels with biofuels lead to a net reduction in CO2 emissions? : The case of district heating in Norrköping municipality

    Master-uppsats, Stockholms universitet/Institutionen för naturgeografi

    Författare :Stina Ljungberg; [2018]
    Nyckelord :Forest residue; slash; bio-based economy; sustainable energy; Grot; biobaserad ekonomi; hållbar energi;

    Sammanfattning : With global warming and the international, national and local goals of reducing greenhouse gas net emissions, the phasing out of fossil fuels are of great importance. One energy source resulting in nearly no net emissions are biofuels. LÄS MER