Search for dissertations about: "fuels combustion engine"
Showing result 1 - 5 of 128 swedish dissertations containing the words fuels combustion engine.
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1. HCCI Combustion - Engine Operation and Emission Characteristics
Abstract : The potential and limitations of the Homogeneous Charge Compression Ignition (HCCI) engine concept has been experimentally investigated. The operation range, in terms of usable air/fuel ratio and engine load, and the emission characteristics have been studied. An 1. READ MORE
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2. On Alternative Fuels for Internal Combustion Engines : A study of biodiesel, gaseous methane and methanol
Abstract : This thesis covers some of the environmental impacts of internalcombustion engines running on alternative fuels. The focus of thestudies conveyed is the reduction of greenhouse gases and particleemissions, as these two factors are of great importance for the pathsthat road transportation is facing. READ MORE
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3. Combustion Valve Wear : A Tribological Study of Combustion Valve Sealing Interfaces
Abstract : The exhaust valve system of combustion engines experiences a very complex contact situation of frequent impact involving micro sliding, high and varying temperatures, complex exhaust gas chemistry and possible particulates, etc. In addition, the tribological situation in the exhaust valve system is expected to become even worse due to strict future emission regulations, which will require enhanced combustion and cleaner fuels. READ MORE
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4. Exergy Evaluation of Engine Operations : Combustion Process to Exhaust Flow
Abstract : Transitioning the transport sector to clean energy sources is crucial for mitigating greenhouse gas emissions and achieving carbon neutrality. A collaborative solution, combining both electric vehicles and combustion engines using renewable fuels, may prove more effective than competitive ones. READ MORE
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5. 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
Abstract : 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. READ MORE