Effects of EGR and DME Injection Strategy in Hydrogen-DME Compression Ignition Engine

2011-01-1790

08/30/2011

Event
SAE International Powertrains, Fuels and Lubricants Meeting
Authors Abstract
Content
The compression ignition combustion fuelled with hydrogen and dimethyl-ether was investigated. Exhaust gas recirculation was applied to reduce noise and nitrogen oxide (NOx) emission. When dimethyl-ether was injected earlier, combustion showed two-stage ignitions known as low temperature reaction and high temperature reaction. With advanced dimethyl-ether injection, combustion temperature and in-cylinder pressure rise were lowered which resulted in high carbon monoxide and hydrocarbon emissions. However, NOx emission was decreased due to relatively low combustion temperature. The engine combustion showed only high temperature reaction when dimethyl-ether was injected near top dead center. When exhaust gas recirculation gas was added, the in-cylinder pressure and heat release rate were decreased. However, it retarded combustion phase resulting in higher indicated mean effective pressure. The carbon monoxide and hydrocarbon emissions were increased and NOx emission was decreased with exhaust gas recirculation was added. In this study, low-emission, hydrogen-DME compression ignition engine was achieved through the DME injection strategy and EGR.
Meta TagsDetails
DOI
https://doi.org/10.4271/2011-01-1790
Pages
10
Citation
Jeon, J., and Bae, C., "Effects of EGR and DME Injection Strategy in Hydrogen-DME Compression Ignition Engine," SAE Technical Paper 2011-01-1790, 2011, https://doi.org/10.4271/2011-01-1790.
Additional Details
Publisher
Published
Aug 30, 2011
Product Code
2011-01-1790
Content Type
Technical Paper
Language
English