Sökning: "Premixed Combustion"
Visar resultat 16 - 20 av 135 avhandlingar innehållade orden Premixed Combustion.
16. HCCI Combustion - Engine Operation and Emission Characteristics
Sammanfattning : The potential and limitations of the Homogeneous Charge Compression Ignition (HCCI) engine concept has been experimentally investigated. The operation range, in terms of usable air/fuel ratio and engine load, and the emission characteristics have been studied. An 1. LÄS MER
17. Model-Based Optimization of Combustion-Engine Control
Sammanfattning : The work presented in this thesis is motivated by the need to reliably operate a compression-ignition engine in a partially premixed combustion (PPC) mode. Partially premixed combustion is a low temperature combustion concept, where the ignition delay is prolonged to enhance fuel-air mixing in the combustion chamber before the start of combustion. LÄS MER
18. Combustion Chemistry Investigation of Liquid and Solid Fuels
Sammanfattning : The aim of this work was to study the combustion of liquid and solid fuels with the emphasis on intermediates and products. Depending on the structure and the complexity of the fuel different reactors and methods were used. Small-scale laboratory reactors were built and chemical analysis and evaluation methods were developed. Heptane. LÄS MER
19. Wall Related Lean Premixed Combustion Modeled with Complex Chemistry
Sammanfattning : Increased knowledge into the physics and chemistrycontrolling emissions from flame-surface interactions shouldhelp in the design of combustion engines featuring improvedfuel economy and reduced emissions. The overall aim of this work has been to obtain afundamental understanding of wall-related, premixed combustionusing numerical modeling with detailed chemical kinetics. LÄS MER
20. Extension of OpenFOAM Library for RANS Simulation of Premixed Turbulent Combustion
Sammanfattning : Unsteady multi-dimensional numerical simulation of turbulent flames is a well recognized tool for research and development of future internal combustion engines capable for satisfying stringent requirements for ultra-low emission and highly efficient energy conversion. To attain success, such simulations need, in particular, well elaborated Computational Fluid Dynamics (CFD) software, as well as advanced predictive models of turbulent burning. LÄS MER