000 01655nab a2200193 4500
005 20260522171505.0
008 260224s2009 xxu
100 1 _aMaiboom, Alain
_941563
100 1 _aTauzia, Xavier
_941564
100 1 _aShah, Samiur Rahman
_941565
245 0 0 _aNew phenomenological six-zone combustion model for direct-injection diesel engines
260 _cene. 2009
270 _a24/07/2009 ; 24/07/2009
300 _a13 p. ; 690-703
520 _aTranscripción del resúmen publicado por el autor: A new phenomenological multizone combustion model has been developed for direct-injection (DI) diesel engines based on the well-known Dec's "conceptual" model for DI diesel combustion as well as spray models from Siebers et al. (liquid- and vapor-phase fuel penetration, spray spreading angle, and lift-off length). The model distinguishes six zones and provides local information, such as mean equivalence ratio and temperature in the various zones. A validation of the model is performed while varying main engine parameters, such as engine speed and load, inlet air temperature, exhaust gas recirculation (EGR) rate, boost pressure, or the injection pressure. The model is able to calculate the rate of heat release (ROHR) with good accuracy, whereas the variation of calculated local parameters (core spray and flame temperature, lift-off length, and corresponding equivalence ratio) can be used to explain the main tendencies on engine-out NOx and particulate matter (PM) emissions observed on the engine test bench.
773 0 _tEnergy & fuels
_g23
942 _cARTICULO
_2ddc
999 _c170184
_d170184