000			01983nab a2200217 4500
005			20260520003101.0
008			260224s2012 xxu ing
041			_aInglés
245	0	0	_aNumerical and Experimental Study on the Combustion and Emission Characteristics of a Dimethyl Ether (DME) Fueled Compression Ignition Engine
260			_a _b _cmayo/jun. 2012
270			_a15/05/2013 ; 15/05/2013
300			_a10 p. ; 479-489
520			_aTraducción del resúmen del autor: A numerical investigation was carried out to study on the combustion and emission characteristics of dimethyl ether (DME) with wide ranges of injection timings in compression ignition engines. In order to simulate DME combustion processes, a KIVA-3V code coupled with a chemistry solver was used to solve the detailed chemical kinetics model of DME oxidation. In addition, the Kelvin-Helmholtz-Rayleigh-Taylor (KH-RT) hybrid breakup model and Renormalization Group (RNG) k-e models were applied to analyze the spray characteristics and turbulent flow, respectively. To predict the NOx formation during DME combustion, a reduced Gas Research Institute (GRI) NO mechanism was used. From these results on the combustion and emission, the calculated results were compared with experimental ones for the same operating conditions. In the combustion characteristics, the calculated combustion pressure and heat release rates agreed well with experimental results. The levels of experimental NOx emissions was reduced as the start of the injection timing retarded, and also these trends appeared in calculated emission characteristics. Additionally, the calculated CO and HC emissions show an increasing trend as the start of the injection is retarded.
581			_a3
773	0		_tOil and Gas Science and Technology _g67
942			_cARTICULO
100	1		_aKim, Hyung Jun _953198
100	1		_aWook Park, Sung _953199
100	1		_aSik Lee, Chang _953200
999			_c187697 _d187697