Sökning: "Biofuels"

Visar resultat 6 - 10 av 247 avhandlingar innehållade ordet Biofuels.

  1. 6. Becoming Biofuels. The messy assembling of resources, sustainability, poverty, land use, and nation-states

    Författare :Marie Widengård; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; biofuels; jatropha; assemblages; governmentality; political ecology; political economy; ethnography; governance; materiality; authority; territory; sovereignty; resources; poverty; sustainability; land use change; states; standards; certification; Africa; Zambia; Mozambique; Tanzania; Kenya; Brazil; EU;

    Sammanfattning : Biofuels have come to represent the will to mitigate climate change by replacing fossil fuels with so-called climate-friendly and renewable plant sources, and to improve rural and poor conditions in the South through biofuel crop production, farm job creation, and smallholder cash cropping. The expansion of biofuels in countries in the South largely pivoted upon ‘the will to develop’, specifically through the oil shrub Jatropha curcas L. LÄS MER

  3. 7. The Effects of Oxygenated Fuels on DISI Engine Particle Emissions and Efficiency : Experimental investigation of the effects of oxygenated biofuels on particle emissions and engine performance

    Författare :Tara Larsson; Ulf Olofsson; Terese Løvås; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biofuels; reneawable fuels; direct-injected engines; spark-ignited engines; particle emissions; engine efficiency; engine performance; Machine Design; Maskinkonstruktion;

    Sammanfattning : The transport sector is one of the main sources of greenhouse gas emissions.Replacing fossil fuels with renewable fuels can help reduce the impact oftransportation on the climate. LÄS MER

  4. 8. Perspectives on bioenergy futures - International bioenergy trade and bioenergy expansion in a European policy context

    Författare :Julia Hansson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Sweden; policy; CO2 credits; bioenergy trade; EU; biofuels; biofuels for transport; bioenergy; energy systems model; biomass; electricity;

    Sammanfattning : Biomass can be used to substitute the use of fossil fuels in the energy system. Presently, the use of biomass is being promoted in Sweden and the rest of the EU by targets and policies. LÄS MER

  5. 9. The dielectric properties of solid biofuels

    Författare :Ana Marta Paz; Erik Dahquist; Ebbe Nyfors; Mälardalens högskola; []
    Nyckelord :dielectric properties; solid biofuels; moisture content determination; Energy- and Environmental Engineering; energi- och miljöteknik;

    Sammanfattning : The use of bioenergy has been increasing due to efforts in fossil fuels replacement. Modern bioenergy technologies aim for high efficiency and low pollution levels, which increases the need for methods for the on-line characterization of biofuels. LÄS MER

  7. 10. Adding Fuel to the Fire : North-South dynamics in the geographies of transport energy: the case of EU biofuels

    Författare :David Harnesk; LUCSUS; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; energy geography; geopolitics; territorialisation; climate change mitigation; transport; biofuels; agrofuels; European Union EU ; certification; sustainability criteria; sustainability science; energi; geografi; geopolitik; territorialisering; klimatomställning; transport; biodrivmedel; biobränsle; Europeiska Unionen; certifiering; hållbarhetskriterier; hållbarhetsvetenskap;

    Sammanfattning : Since the 2000s, the European Union (EU) has promoted biofuels for transport to achieve climate change mitigation, and rural development in the global South. In contrast, critiques have argued that biofuel promotion impedes more meaningful mitigation while also resulting in dispossession of land and loss of labour opportunities in the global South. LÄS MER