PDF(781 KB)
Study of combustion and emission characteristics
of turbocharged diesel engine fuelled with dimethylether
- WU Junhua, HUANG Zhen, QIAO Xinqi, LU Jun, ZHANG Junjun, ZHANG Liang
Author information
+
Key Laboratory of Power Machinery and Engineering, Ministry of Education, Shanghai Jiaotong University
Show less
History
+
| Published |
| 05 Mar 2008 |
| Issue Date |
| 05 Mar 2008 |
An experimental study of a turbocharged diesel engine operating on dimethyl ether (DME) was conducted. The combustion and emission characteristics of the DME engine were investigated. The results show that the maximum torque and power of DME are greater than those of diesel, particularly at low speeds; the brake specific fuel consumption of DME is lower than that of diesel at low and middle engine speeds, and the injection delay of DME is longer than that of diesel. However, the maximum cylinder pressure, maximum pressure rise rate and combustion noises of the DME engine are lower than those of diesel. The combustion velocity of DME is faster than that of diesel, resulting in a shorter combustion duration of DME. Compared with the diesel engine, NOx emission of the DME engine is reduced by 41.6% on ESC data. In addition, the DME engine is smoke free at any operating condition.
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
This is a preview of subscription content, contact
us for subscripton.
References
1. Baert R S G Beckmann D Veen A Efficent EGR technology for future HD diesel engine emissiontargets. SAE Paper 990837Warrendale,USASociety of Automotive EngineersInc 1998
2. Ofner H Gill D W Krotscheck C Dimethyl ether as fuel for CI engines-a new technologyand its environmental potential. SAE Paper 981158Warrendale, USASociety of AutomotiveEngineers Inc 1998
3. Fieisch T McCarthy C Basu A et al.A new clean diesel technology: Demonstration ofULEV emissions on an avistar diesel engine fueled with dimethyl ether.SAE Paper 950061Warrendale, USASociety of Automotive Engineers Inc 1995
4. Sorenson S C Mikkelsen S C Mikkelsen S E Performance and emissions of a 0.273 liter direct injectiondiesel engine fueled with neat dimethyl ether. SAE Paper 950064Warrendale, USASociety of Automotive Engineers Inc 1995
5. Paul K Herwig O Development of fuel injectionequipment and combustion system for DI diesels operated on dimethylether. SAE Paper 950062Warrendale, USASociety of Automotive Engineers Inc 1995
6. Song Jun Huang Zhen Qiao Xinqi New Controllable Premixed Combustion for Dimethyl EtherEngineChinese Science Bulletin 2003 48(11)1 1571 160
7. Huang Z Wang H Zhou L Study of combustion characteristics of a compression ignitionengine fulled with dimethyl etherProc InstnMech Eng, Part D, Journal of Automobile Engineering 1999
AI Summary
