Search for dissertations about: "Spark"

Showing result 1 - 5 of 132 swedish dissertations containing the word Spark.

  1. 1. Theoretical and Experimental Studies of the Formation of Ionized Gases in Spark Ignition Engines

    University dissertation from Lund Institute of Technology

    Author : Raymond Reinmann; Lund University.; Lunds universitet.; [1998]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Thermal Ionization; Calorimetry; Interferometry; Spark Ignition Engine; Current and Voltage Measurements; Engine Control.; fluid dynamics; Gases; plasmas; Gaser; plasma; fluiddynamik; Breakdown; Arc; Glow; Flame Ionization; Chemi-Ionization; Spark; Townsend; Fysicumarkivet A:1998:Reinmann;

    Abstract : The processes that govern the formation, existence and consumption of ions in gases have been studied both experimentally and theoretically. The aim of the work is targeted at increasing the understanding of these phenomena in the working gases inside an engine. READ MORE

  2. 2. HCCI combustion using Charge Stratification and Spark-assistance

    University dissertation from Lund Institute of Technology

    Author : Andreas Berntsson; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Charge stratification; Spark-assistance; HCCI; Combustion; NVO; Spark-assist; CAI;

    Abstract : .... READ MORE

  3. 3. Modeling of Spark to Ignition Transition in Gas Mixtures

    University dissertation from Lund Institute of Technology

    Author : Muhammad Akram; [1996]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Spark ignition; Spark discharge; Fluid dynamics; Physics; Plasma dynamics.; Fysik; Fysicumarkivet A:1996:Akram;

    Abstract : This thesis pertains to the models for studying sparking in chemically inert gases. The models are derived from the basic principles and framework in continuum mechanics. The processes taking place in a spark to flame transition can be segregated into physical and chemical processes. This study is focused on physical processes. READ MORE

  4. 4. Spark Assisted Compression Ignition, SACI

    University dissertation from Lund Institute of Technology

    Author : Håkan Persson; Lund University.; Lunds universitet.; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; flame propagation; PLIF; LDV; chemiluminescence imaging; residuals; negative valve overlap; low temperature combustion; SACI; spark assistance; HCCI; turbulence; charge stratification; cycle to cycle;

    Abstract : The strong focus on decreasing carbon dioxide emissions due to limited natural resources of fossil fuel as well as alarming climate changes drives the research and development of our prime mover, the combustion engine, faster then ever. The minimum requirement is a power source with increased efficiency while emitting ultra low levels of hazardous local and regional emissions. READ MORE

  5. 5. Spark Ignition Combustion of Direct Injected Alternative Fuels

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Lars Christian Riis Johansen; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; spark ignition; optical diagnostics; internal combustion engine; stratified combustion;

    Abstract : Several technologies and modifications exist to increase the fuel efficiency of passenger vehicles in general and spark ignition engines in particular. Combining a spark ignition engine with an electric drive system in hybrid powertrain and thermodynamic cycle improvements are two such approaches with the potential to greatly reduce fuel consumption. READ MORE