Convegni ATI - Accesso riservato soci CTI

Autore: A. Viggiano, V. Magi

Collana: CA - 63 - Palermo 2008

Note:
In this work, a three-dimensional CFD model is coupled with an accurate kinetic mechanism for ethanol combustion, in order to investigate the performance of engines fuelled by ethanol. The experimental results of a test engine are considered for
comparisons. This test engine is a single cylinder engine working in HCCI mode. The numerical results are shown in terms of average in-cylinder pressure, heat release rate, CO and CO2 emissions for different equivalence ratios. They are compared with
measurements and very good agreement is obtained. Sensitivity analyses of various initial and boundary conditions, such as initial temperature of the mixture and wall temperature, are performed. Finally, the influence of wall heat loss on CO emissions
is considered.