Search for dissertations about: "Spark"
Showing result 31 - 35 of 169 swedish dissertations containing the word Spark.
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31. An Experimental Study of a Spark-assisted Stratified Charge HCCI Engine
Abstract : .... READ MORE
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32. Development of Laser-Induced Fluorescence for Precombustion Diagnostics in Spark-Ignition Engines
Abstract : Motivated by a desire to understand and optimize combustion in spark-ignition (SI) engines, laser techniques have been developed for measurement of fuel and residual gas, respectively, in the precombustion mixture of an operating SI engine. The primary objective was to obtain two-dimensional, quantitative data in the vicinity of the spark gap at the time of ignition. READ MORE
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33. Modeling, Control and Optimization of theTransient Torque Response in DownsizedTurbocharged Spark Ignited Engines
Abstract : Increasing demands for lower carbon dioxide emissions and fuel consumption drive technological developments for car manufacturers. One trend that has shown success for reducing fuel consumption in spark ignited engines is downsizing, where the engine size is reduced to save fuel and a turbocharger is added to maintain the power output. READ MORE
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34. Variable Valve Actuation in a Spark Ignition Engine - A Flow Field and Heat Release Study
Abstract : The objective of this thesis was to find ways of improving part-load efficiency for a spark ignition engine by studying the effects of variable-valve actuation on fluid flow and combustion. The in-cylinder flow was measured with laser doppler velocimetry, LDV, and particle image velocimetry, PIV. READ MORE
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35. Empirical combustion modeling in SI engines
Abstract : This licentiate thesis concerns the modeling of spark ignition engine combustion for use in one dimensional simulation tools. Modeling of knock is of particular interest when modeling turbocharged engines since knock usually limits the possible engine output at high load. READ MORE