Search for dissertations about: "emission"
Showing result 16 - 20 of 2145 swedish dissertations containing the word emission.
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16. Particle Emissions from Ships
Abstract : Since 1st of January 2015 ships operating in sulphur emission control areas (SECAs) have to use marine fuels with a fuel sulphur content less than 0.1 %m/m. This regulation forces the ship owners to make a fuel shift and use low-sulphur marine fuel oils, use alternative fuels or use scrubbers on-board their ships. READ MORE
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17. On the Impact of Piston Motion and In-Cylinder Charge Composition on Energy Release, Auto Ignition and Emission Formation in Premixed Charge Internal Combustion Engines
Abstract : The results presented in this thesis can be divided into four areas of investigation: Investigation of the effect of new volume-crank angle relations on engine emissions, power and efficiency; investigation of nitrogen oxides effect on auto ignition and knock in SI engines; investigation of premixed SI and HCCI engine operation with the alternative fuels hydrogen and reformed methanol gas (RMG); software development of a detailed chemical kinetics zonal engine model. Model development of the in-house two-zone chemical kinetic code focused on expansion of the Jacobian matrix to allow simulations of variable in-cylinder charge. READ MORE
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18. The political economy of emission standards : politics, business and the making of vehicle emission regulations in Sweden and Europe, 1960-1980s
Abstract : The purpose of this thesis is to contribute to an improved historical understanding of the challenges and complexities involved in constructing systems of governance of motor vehicle air pollution. The specific aim of the study is to explore the development of regulatory vehicle emission standards in Sweden between 1960 and the 1980s as well as to analyze this development within its broader European economic, regulatory and environmental policy context by adopting a transnational approach. READ MORE
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19. Tunning Multicolor Light Emission in Lead-free Materials
Abstract : Perovskites are a class of compounds with the general formula ABX3 and becoming increasingly attractive recently. Because this kind of material possesses various advantages such as abundant raw materials, easy synthesis, excellent photoelectric properties, and short production process. READ MORE
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20. Optical remote sensing of industrial gas emission fluxes
Abstract : Mobile optical remote sensing techniques offer promising possibilities to quantify and geographically attribute local industrial gaseous emissions to the atmosphere. Studies have repeatedly shown that such emissions are often poorly understood, underestimated, and thereby not properly accounted for in emission inventories and regional atmospheric chemistry models, especially for emissions of VOCs. READ MORE