Kettner, M. and Dechent, S. and Hofmann, M. and Huber, E. and Arruga, H. and R., Mamat and G., Najafi (2016) Investigating the Influence of Water Injection on the Emissions of a Diesel Engine. Journal of Mechanical Engineering and Sciences (JMES) , 10 (1). pp. 1863-1881. ISSN 2289-4659 (print); 2231-8380 (online). (Published)
|
PDF
Investigating the Influence of Water Injection on the Emissions of a Diesel Engine.pdf Available under License Creative Commons Attribution. Download (1MB) | Preview |
Abstract
There are many methods to decrease the nitrogen oxide emissions of a diesel engine. One promising measure is water injection into the engine’sintake manifold. As emission limits become more and more stringent, the diesel engine NOx–particulate trade-off is a challenge for engine developers. To overcome this challenge, a single-point water injection system has been developed to investigate the influence of different amounts of injected water on the behaviour of a 4-cylinder diesel engine. The amount of injected water was varied from 0 to 100% water-to-fuel ratio in part-load operation (BMEP = 2, 3.5 and 5 bar). The influence on the intake air cooling effect, exhaust emissions, combustion and engine parameters was evaluated. The combustion temperature and the NOx emissions decreased drastically (63% NOx decrease for a BMEP of 5 bar and a waterto-fuel ratio of 100%). This benefit had the drawback of an increase of the particle matter emission at high water-to-fuel ratio. The combustion process and performance parameters regarding efficiency, torque and fuel consumption were marginally influenced by the water injection. This work has achieved a major reduction of NOx raw emissions of a diesel engine. Further research lines could include research on water injection at high load operation points in the engine map.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Diesel engine; water injection; NOx emission |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Faculty/Division: | Faculty of Mechanical Engineering |
| Depositing User: | Mrs. Neng Sury Sulaiman |
| Date Deposited: | 08 Nov 2016 03:21 |
| Last Modified: | 30 Jan 2018 02:35 |
| URI: | http://umpir.ump.edu.my/id/eprint/14436 |
| Download Statistic: | View Download Statistics |
Actions (login required)
 |
View Item |