Sökning: "combustion diagnostics"

Visar resultat 1 - 5 av 13 uppsatser innehållade orden combustion diagnostics.

  1. 1. Discharge and Flame Chemistry in Lithium-Ion Battery Vent Gases : Investigations using Breakdown Experiments with Laser-Based Diagnostics

    Master-uppsats, Lunds universitet/Förbränningsfysik; Lunds universitet/Fysiska institutionen

    Författare :Julia Lövgren; [2023]
    Nyckelord :PLIF; Laser-induced fluorescence; Laser-based diagnostics; Combustion; Lithium-ion battery; Physics and Astronomy;

    Sammanfattning : Due to the environmental impact of fossil fuels, there has been a growing interest in lithium-ion batteries for electric vehicles. However, safety concerns have arisen regarding potential fire hazards associated with the vent gases of these batteries. LÄS MER

  3. 2. Electrical Discharge Interaction with Lithium-Ion Battery Vent Gases: Investigations using High-Speed Imaging and Breakdown Analysis

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Alexander Petersson; [2023]
    Nyckelord :Electrical Discharge; Electrical Arc; Spark Discharge; Combustion; Ignition; Lithium-Ion Battery; Thermal Runaway; Vent Gases; Breakdown Voltage; Ionization; High-Speed Imaging; Technology and Engineering; Chemistry;

    Sammanfattning : The increasing drive for sustainable and eco-friendly transportation has made the electrification of cars a top priority in the energy and transportation sectors. Ensuring the safety of electrical vehicle (EV) batteries is of the utmost importance. LÄS MER

  4. 3. Design of a modular small-scale PMMA/Air hybrid rocket research engine

    Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Gustaf von Platen; [2023]
    Nyckelord :hybrid rocket engine; PMMA combustion; rocket engine design; combustion diagnostics; rocket engine; regression rate; preliminary design definition; hybrid rocket engine simulation; gaseous oxidizer; transparent rocket engine;

    Sammanfattning : Rocket propulsion using the hybrid-propellant scheme is a technology that offers much promise in applications where high-performance liquid rocket engines are deemed too complex and solid rocket motors are considered to lack performance or safety. However, despite extensive research, there is still a lack of knowledge in the theoretical aspects of hybrid rocketry, especially in the area of fuel-oxidizer mixing and fuel regression rate. LÄS MER

  5. 4. Use of a multi-parameter sensor for oil degradation monitoring

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Nicolas Gasnier; [2022]
    Nyckelord :;

    Sammanfattning : The continuous monitoring in real time of the degradation of lubricants is of great interest for many different industries to optimize the use of lubricating oil in combustion engines. Traditional oil quality diagnostic methods can measure accurately the different levels of oil degradation, but they cannot be implemented on engines to perform continuous oil quality diagnostics. LÄS MER

  7. 5. Radiation effects on wide bandgap semiconductor devices

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Patric Elf; [2020]
    Nyckelord :applied physics;

    Sammanfattning : Gallium nitride (GaN) based high-electron-mobility transistors (HEMTs) are used in a wide variety of areas, such as 5G, automotive, aeronautics/astronautics and sensing elds ranging from chemical, mechanical, biological to optical applications. Owing superior material properties, the GaN based HEMTs are especially useful in harsh operation environments e. LÄS MER