The homogeneous charge compression ignition (HCCI) combustion fueled by dimethyl ether (DME) and compressed natural gas (CNG) was investigated. The experimental work was carried out on a single-cylinder diesel engine. The results show that adjusting the proportions of DME and CNG is an effective technique for controlling HCCI combustion and extending the HCCI operating range. The combustion process of HCCI with dual fuel is characterized by a distinctive two-stage heat release process. As CNG flow rate increases, the magnitude of peak cylinder pressure and the peak heat release rate in the second stage goes up. As DME flow rate increases, the peak cylinder pressure, heat release rate, and NOx emissions increase while THC and CO emissions decrease.

Issue Section:
Internal Combustion Engines
Keywords:
diesel engines, engine cylinders, combustion, ignition, air pollution
Topics:
Combustion, Emissions, Fuels, Homogeneous charge compression ignition engines, Ignition, Engines, Nitrogen oxides
1.
Najt
,
P. M.
, and
Foster
,
D. E.
, 1983, “
Compression-Ignited Homogeneous Charge Combustion
,” SAE Paper No. 830264.
2.
Gray
,
A. W.
, III, and
Ryan
,
T. W.
, III, 1997, “
Homogeneous Charge Compression Ignition (HCCI) of Diesel Fuel
,” SAE Paper No. 971676.
3.
Aoyama
,
T.
,
Hattori
,
Y.
,
Mizuta
,
J.
, and
Sato
,
Y.
, 1996, “
An Experimental Study on Premixed-Charge Compression Ignition Gasoline Engine
,” SAE Paper No. 961160.
4.
Ryan
,
T. W.
, and
Callahan
,
T. J.
, 1996, “
Homogeneous Charge Compression Ignition of Diesel Fuel
,” SAE Paper No. 961160.
5.
Suzuki
,
H.
,
Koike
,
N.
, and
Odaka
,
M.
, 1998, “
Combustion Control Method of Homogeneous Charge Diesel Engines
,” SAE Paper No. 980509.
6.
Oakley
,
A.
,
Zhao
,
H.
, and
Ladommatos
,
N.
, 2001, “
Experimental Studies on Controlled Auto-Ignition (CAI) Combustion of Gasoline in a 4-Stroke Engine
,” SAE Paper No. 2001-01-1030, SP-1623.
7.
Kimura
,
S.
,
Aoki
,
O.
,
Kitahara
,
Y.
, and
Aiyoshizawa
,
E.
, 2001, “
Ultra-Clean Combustion Technology Combining a Low-Temperature and Premixed Combustion Concept for Meeting Future Emission Standards
,” SAE Paper No. 2001-01-0200, SP-1623.
8.
U.S. Department of Energy Efficiency and Renewable Energy Office of Transportation Technologies, 2001, “Homogeneous Charge Compression Ignition (HCCI) Technology-A Report to the U.S. Congress.”
9.
Christensen
,
M.
,
Hultqvist
,
A.
, et al., 1999, “
Demonstrating the Multi Fuel Capability of a Homogeneous Charge Compression Ignition Engine with Variable Compression Ratio
,” SAE Paper No. 1999-01-3679.
10.
Li
,
J.
,
Zhao
,
H.
, and
Ladommatos
,
N.
, 2001, “
Research and Development of Controlled Auto-Ignition (CAI) Combustion in a 4-Stroke Multi-Cylinder Gasoline Engine
,” SAE Paper No. 2001-01-3608.
11.
Su
,
W.
,
Lin
,
T.
, and
Pei
,
Y.
, 2003, “
A Compound Technology for HCCI Combustion in a DI Diesel Engine Based on the Multi-Pluse Injection and the BUMP Combustion Chamber
,” SAE Paper No. 2003-01-0741.
12.
Christensen
,
M.
, and
Johansson
,
B.
, 1999, “
Homogeneous Charge Compression Ignition with Water Injection
,” SAE Paper No. 1999-01-0182.
13.
Shudo
,
T.
,
Ono
,
Y.
, and
Takahashi
,
T.
, 2002, “
Influence of Hydrogen and Carbon Monoxide on HCCI Combustion of Dimethyl Ether
,” SAE Paper No. 2002-01-2828.
14.
Chen
,
Z.
,
Konno
,
M.
,
Oguma
,
M.
, and
Yanai
,
T.
, 2000, “
Experimental Study of CI Natural-Gas/DME Homogeneous Charge Engine
,” SAE Paper No. 2000-01-0329.
15.
Qin
,
J.
, and
Yao
,
M. F.
, 2004, “
Numerical Study on the Dimethyl Ether/Compressed Natural Gas HCCI Combustion Using Chemical Kinetics Model
,”
Combust. Sci. Technol.
0010-2202,
10
(
1
), pp.
225
–
231
.
16.
Tsurushima
,
T.
,
Harada
,
A.
,
Iwashiro
,
Y.
,
Enomoto
,
Y.
,
Asaumi
,
Y.
, and
Aoyagi
,
Y.
, 2001, “
Thermodynamic Characteristics of Premixed Compression Ignition Combustions
,” SAE Paper No. 2001-01-1891.
17.
Tsurushima
,
T.
,
Kunishima
,
E.
,
Asaumi
,
Y.
, and
Aoyagi
,
Y.
, 2002, “
The Effect of Knock on Heat Loss in Homogeneous Charge Compression Ignition Engines
,” SAE Paper No. 2002-01-0108, SP-2688.
18.
Christensen
,
M.
,
Hultqvist
,
A.
, and
Johansson
,
B.
, 2001, “
The Effect of Toplland Geometry on Emissions of Unburned Hydrocarbons From a Homogeneous Charge Compression Ignition (HCCI) Engine
,” SAE Paper No. 2001-01-1893.
19.
Aceves
,
S.
,
Martinez-Frias
,
J.
,
Flowers
,
D.
,
Smith
,
J.
,
Dibble
,
R.
,
Wright
,
J.
, and
Hessel
,
R.
, 2001, “
A Decoupled Model of Detailed Fluid Mechanics Followed by Detailed Chemical Kinetics for Prediction of Iso-Octane HCCI Combustion
,” SAE Paper No. 2001-01-3612.
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 by American Society of Mechanical Engineers
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