Search for dissertations about: "PPC"

Showing result 1 - 5 of 39 swedish dissertations containing the word PPC.

  1. 1. Numerical Studies of Methanol PPC Engines and Diesel Sprays

    University dissertation from Energy Sciences, Lund University

    Author : Mateusz Pucilowski; [2019-11-05]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Methanol; Partially Premixed Combustion PPC ; spray-wall interaction; piston geometry; multiple injections; ICE; ignition front; diffusion flame; combustion mode; RANS; LES; PPC; Diesel spray;

    Abstract : The global environment suffers from utilizing fossil fuels to powering internal combustion engines (ICE), due to the massive amounts of released CO2. Besides the global impact, the local environments experience high concentrations of harmful pollutants such as NOx, CO, soot and particulate matter (PM). READ MORE

  2. 2. Optical Diagnostics of Gasoline Compression Ignition : HCCI-PPC-Diffusion Combustion

    University dissertation from Department of Energy Sciences, Lund University

    Author : Marcus Lundgren; Lund University.; Lunds universitet.; [2017-05-08]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Optical engine; LTC; HCCI; PPC; Gasoline; High load;

    Abstract : Access to clean and affordable energy is one of the cornerstones of the world's society. Since the introduction of the internal combustion engine, diesel engines have become widely used for transportation in the commercial sector. READ MORE

  3. 3. Combustion Bowl Heat Transfer Analysis in Diesel and PPC Engines

    University dissertation from Department of Energy Sciences, Lund University

    Author : Helgi Fridriksson; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Heat Transfer; CFD; Internal Combustion Engine; Diesel; PPC;

    Abstract : This thesis concerns a numerical investigation on heat transfer in internal combustion engines, with the aim of increasing engine efficiency. The efficiency gains are to be extracted from reduced heat transfer losses, by increasing the knowledge on how the heat transfer process is affected by various hardware and operational parameters in the engine. READ MORE

  4. 4. Stratification and Combustion in the Transition from HCCI to PPC

    University dissertation from Lund University Faculty of Engineering Department of Energy Sciences Division of Combustion Engines P.O. Box 118, SE-221 00 LUND Sweden

    Author : Changle Li; [2018-10-15]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HCCI; PPC; CI; stratification; combustion; intake temperature; fuel properties; piston geometry; spray target; energy balance; efficiency;

    Abstract : .... READ MORE

  5. 5. Investigation of PPC in an Optical Engine : With focus on Fuel Distribution and Combustion Characterization

    University dissertation from Department of Energy Sciences, Lund University

    Author : Sara Lönn; [2019]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Optical engine; PPC; Fuel distribution; Methanol;

    Abstract : The global society is dependent on transportation to function and a big part of these transports are driven by an internal combustion engine. Heavy-duty vehicles utilizes conventional diesel combustion is a combustion concept where the fuel is often ignited during the injection event and while it gives a high combustion efficiency, the combustion mode is also characterized by high emission of NOx and soot. READ MORE