11. Tagung "Der Arbeitsprozess des Verbrennungsmotors"
Visualization, Thermodynamic Analysis and Simulation of New Engine Combustion Processes in a Flexible Optically Accessible Test-Rig
Authors
A. Escher, Y. M. Wright, K. Boulouchos, Institut für Aerothermochemie und Verbrennungssysteme LAV, ETH Zürich
Year
2007
Summary
In this study, experimental results of homogeneous charge compression ignition HCCI of n-heptane and n-butane in a single shot machine are presented. The measurements are compared with a stochastic multi-zone model where the individual zones are calculated using a perfectly stirred reactor with detailed chemistry. As a perfect homogeneous temperature and fuel distribution are difficult to establish under experimental conditions, deviations from perfect homogeneity based on CFD-calculations are shown. The influence of a hot surface in the cylinder head in terms of heat release rate and ignitability is examined. Further, dual fuel injections of n-butane and diesel are studied to trigger the n-butane ignition with a defined start of combustion.
Members of the Austrian Society of Automotive Engineers have access to all lectures of the International Vienna Motor Symposia.