Search for dissertations about: "decomposition kinetics"

Showing result 16 - 20 of 41 swedish dissertations containing the words decomposition kinetics.

  2. 16. Green Propellants

    Author : Martin Rahm; Tore Brinck; Eva Malmström Johnsson; Thomas Klapötke; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Quantum chemistry; reaction kinetics; ammonium dinitramide; high energy density materials; rocket propellants; chemical spectroscopy; polymer synthesis; Quantum chemistry; Kvantkemi; Physical chemistry; Fysikalisk kemi;

    Abstract : To enable future environmentally friendly access to space by means of solid rocket propulsion a viable replacement to the hazardous ammonium perchlorate oxidizer is needed. Ammonium dinitramide (ADN) is one of few such compounds currently known. READ MORE

  4. 17. CFD-based Analysis of Combustion Processes in a Free-Piston Diesel Engine

    Author : Miriam Bergman; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; chemical kinetics; Diesel; homogeneous charge compression ignition HCCI ; free-piston; equivalence ratio vs. temperature maps; computational fluid dynamics CFD ; surrogate fuel;

    Abstract : The Free Piston Engine (FPE) which is capable of operating in a variable compression ratio mode, allows flexible auto-ignition control on a cycle-to-cycle basis without any hardware modifications. In this study combustion processes in an FPE were examined using the KIVA-3V CFD code with detailed chemical kinetics (305 reactions among 70 species) of a Diesel surrogate fuel incorporated. READ MORE

  5. 18. Methodology for developing reduced reaction mechanisms, and their use in combustion simulations

    Author : Niklas Zettervall; Förbränningsfysik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; chemical kinetics; LES; reaction mechanism; kemiska reaktioner; LES; Reaktionsmekanism;

    Abstract : Combustion, present in a vast majority of energy and material production as well as in transportation, represents a foundation of our modern society. To improve and optimize the applications relying on combustion demand a high level of knowledge, and an ability to simulate the combustion process. READ MORE

  6. 19. Reaction kinetics of NH3-SCR over Cu-CHA from first principles

    Author : Yingxin Feng; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; density functional theory; ammonia assisted selective catalytic reduction; Cu-CHA; microkinetic modeling; Catalysis;

    Abstract : Ammonia assisted selective catalytic reduction (NH3-SCR) is a leading technology that is used for NOx reduction to N2 and H2O in oxygen excess. Thanks to its high activity, high selectivity, and durability, Cu-CHA is commercialized as an NH3-SCR catalyst. READ MORE

  7. 20. Reaction kinetics of NH3-SCR over Cu-CHA from first principles

    Author : Yingxin Feng; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Catalysis; microkinetic modeling; density functional theory; Cu-CHA; ammonia assisted selective catalytic reduction;

    Abstract : Ammonia-assisted selective catalytic reduction (NH3-SCR) is an advanced technology to reduce nitrogen oxide (NOx) emissions from lean-burn engines. NH3 is added to the exhaust gas and reacts selectively with NOx, forming N2 and H2O. READ MORE