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Study on Combustion and Emission Characteristics of a Combined Injection Engine with Hydrogen Direct Injection
- Source :
- Energy & Fuels. 31:5554-5560
- Publication Year :
- 2017
- Publisher :
- American Chemical Society (ACS), 2017.
-
Abstract
- An engine experimental platform with gasoline port injection and hydrogen/gasoline direct injection was built to study the effects of combined injection mode and ignition timing on combustion and emission characteristics of a spark-ignition engine. The study was performed in three modes, including gasoline port injection (GPI) mode, gasoline port injection plus gasoline direct injection (GPI + GDI) mode, and gasoline port injection plus hydrogen direct injection (GPI + HDI) mode, under the conditions of a constant excess air ratio and speed. Through the comparison and analysis of the three modes, the results reveal that combined injection is beneficial to increasing brake power and decreasing brake-specific fuel consumption and hydrocarbon (HC) and carbon monoxide (CO) emissions. The combustion process will be accelerated and concentrated with combined injection as well as hydrogen addition, and the effect of adding hydrogen is stronger than that of gasoline direct injection. Brake thermal efficiency and ...
- Subjects :
- chemistry.chemical_classification
Thermal efficiency
Materials science
Hydrogen
020209 energy
General Chemical Engineering
Analytical chemistry
Energy Engineering and Power Technology
chemistry.chemical_element
02 engineering and technology
021001 nanoscience & nanotechnology
Combustion
Fuel Technology
Hydrocarbon
chemistry
0202 electrical engineering, electronic engineering, information engineering
Fuel efficiency
Ignition timing
Gasoline
0210 nano-technology
Gasoline direct injection
Subjects
Details
- ISSN :
- 15205029 and 08870624
- Volume :
- 31
- Database :
- OpenAIRE
- Journal :
- Energy & Fuels
- Accession number :
- edsair.doi...........53fcc41122eafae28042914d9d8ef23f