Modelling soot emission from a direct injection diesel engine fuelled with diesel-methanol dual fuel

Authors: Song, Jinou; Yao, Chunde; Liu, Yike; Wang, Hongfu

Source: Combustion Theory and Modelling, Volume 12, Number 5, October 2008 , pp. 999-1007(9)

Buy & download fulltext article:

Price: $56.94 plus tax (Refund Policy)

Abstract:

The objective of this paper is to develop a soot model for multi-dimensional simulations of diesel-methanol dual-fuel engines to predict engine-out soot emissions. To the two-step soot model a special term, based on experimental study and analysis, is appended to the soot formation rate to account for the effect of methanol. The results of engine-out soot emissions predicted by the models were compared with experimental data and it is shown that the existing model predicts well for diesel engines, whereas the proposed model predicts well for both diesel and dual-fuel engines especially for the large fractional methanol flow rates. The results suggest that the soot model must be modified for the dual-fuel combustion mode.

Keywords: soot; methanol; diesel engine; multi-dimensional simulation; combustion

Document Type: Research article

DOI: http://dx.doi.org/10.1080/13647830802192346

Affiliations: 1: State key laboratory of engine, Tianjin University, Tianjin, China

Publication date: 2008-10-01