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Showing result 1 - 5 of 35 essays matching the above criteria.

  1. 1. Leveraging green hydrogen to decarbonise the aviation industry : A case study on electrofuels in Sweden

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Jakob Bergene; Jonathan Bruchhausen; [2023]
    Keywords : Electrofuel; e-fuel; electrokerosene; e-kerosene; SAF; sustainable aviation fuel; sustainable aviation; complementarity formation mechanisms; technology value chains; TVC; Techno-economic analysis; TEA; Elektrobränsle; e-bränsle; elektrofotogen; e-fotogen; SAF; sustainable aviation fuel; sustainable aviation; komplementära formationsmekanismer; technology value chains; TVC; Techno-economic analysis; TEA;

    Abstract : For the EU to reach its 2050 climate targets the aviation industry that is highly dependent on fossil fuels needs to drastically reduce its emissions. In the decarbonisation of the aviation industry drop-in sustainable aviation fuels (SAFs) have been identified as a promising solution to abate the industry’s emissions. READ MORE

  3. 2. Thermochemical energy utilization of biomass in Rwanda - a screening of potential feedstocks

    University essay from Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Author : Felix Johansson Carne; [2022]
    Keywords : bioenergy; agricultural; residues; waste; agroforestry; africa; energiteknik; bioenergi; jordbruksrester; afrika; termokemisk; bränslen;

    Abstract : Traditional bioenergy practices in sub-Saharan Africa involve collecting natural forest wood and burning it in simple fireplaces for household cooking. This is actually still very common, especially in rural areas. The situation is unfortunately connected to health issues, inequality and natural forest degradation and deforestation. READ MORE

  4. 3. Phasing out peat from a co-fired 50 MWth circulating fluidized bed boiler : A theoretical sulfation potential study

    University essay from Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Author : Axel Bergstrand; [2022]
    Keywords : Peat; corrosion; fuel mixture; CFB; circulating fluidized bed; S; alkali chlorides; Sulfur; additives; combustion; fuel design; alkali related corrosion;

    Abstract : The chemical company Perstorp AB has a 50 MWth circulating fluidized bed to supply the production plant with process steam. The fuel mixture used shows a large variation with about 20 different fuel fractions that can be divided into the categories, residue wood chips, sludge, forest fuel, animal waste, industrial residues, and peat. READ MORE

  5. 4. Effects of dead wood on arthropods in managed pine forests in Sweden

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Stephanie Jonsson; [2021]
    Keywords : Dead wood; arthropod; pest mitigation;

    Abstract : Forests provide humans with a range of valuable ecosystem services, but current forest management practices may increase susceptibility to damage from disturbances such as pest insects. One such practise is the harvesting of residue, which decreases the amount of dead wood in the forest. READ MORE

  6. 5. Influence of bio-coal ash respectively coal structure on coke production and coke quality

    University essay from Luleå tekniska universitet/Industriell miljö- och processteknik

    Author : Frida Bäck; [2019]
    Keywords : Bio-coke; bio-coal; leaching; coke quality; carbon structures; torrefied sawdust;

    Abstract : In recent years, the consequences of global warming have increased the discussion about the climate impact caused by humans and the fossil emissions. Sweden has decided to reduce the negative climate impact with a zero vision for the fossil carbon dioxide emissions in year 2045. READ MORE