Search for dissertations about: "fuel quality"
Showing result 1 - 5 of 211 swedish dissertations containing the words fuel quality.
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1. Improving Wood Fuel Pellets for Household Use : Perspectives on Quality, Efficiency and Environment
Abstract : Bioenergy is one of many contributors to reducing the use of fossil fuels in order to mitigate climate change by decreasing CO2-emissions, and the potential for biofuels are large. The wood fuel pellets are a refined biofuel made of sawdust, which is dried and compressed to achieve improved fuel and transportation properties. READ MORE
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2. Investigation of Emission Characteristics for Diluted Flames and Renewable Fuels in Gas Turbine Combustors
Abstract : Gas turbines have served as economically profitable and reliable generators of power for the past few decades, and have mainly been used in simple and combined cycles. The increased restrictions on hazardous emissions and the increased demand for profitability have created new prospects for innovative power cycles. READ MORE
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3. Hydrogen Generation for Fuel Cells in Auxiliary Power Systems
Abstract : Heavy-duty trucks are in idle operation during long periods of time, providing the vehicles with electricity via the alternator at standstill. Idling trucks contribute to large amounts of emissions and high fuel consumption as a result of the low efficiency from fuel to electricity. READ MORE
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4. Stumps as fuel : the influence of handling method on fuel quality
Abstract : Wood fuels make a key contribution to renewable energy sources in the Nordic countries. The growing demand for forest biomass can be partly met by utilising energy-rich stumps left after clear cutting. As fuel, stump wood is commonly associated with a high presence of contaminants, resulting in high ash content. READ MORE
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5. Extraction of logging residues for bioenergy : effects of operational methods on fuel quality and biomass losses in the forest
Abstract : Wood products play a key role in the transformation to a more sustainable society based on renewable bio-based resources, together with the positive effects on climate mitigation by replacing fossil fuels. However, to increase the use of forest fuel in practice it is important to understand the effects of handling and storage on its quality and removal of nutrients from the forest. READ MORE