Evaluation of emission characteristics of a stoichiometric natural gas engine fueled with compressed natural gas and biomethane

Energy ◽  
2021 ◽  
pp. 119766
Author(s):  
Sangho Lee ◽  
Ui Hyung Yi ◽  
Hyungjoon Jang ◽  
Cheolwoong Park ◽  
Changgi Kim
Keyword(s):  
Natural Gas ◽  
Emission Characteristics ◽  
Compressed Natural Gas ◽  
Gas Engine ◽  
Natural Gas Engine

Effects of Spark Advance Angle on Combustion and Emission Characteristics of a Compressed Natural Gas Engine

2011 ◽  
Vol 383-390 ◽  
pp. 6085-6090
Author(s):  
Xiao Na Sun ◽  
Hong Guang Zhang ◽  
Xin Wang ◽  
Dao Jing Wang ◽  
Guo Yong Zheng ◽  
...  
Keyword(s):  
Natural Gas ◽  
Pressure Rise ◽  
Emission Characteristics ◽  
Nox Emissions ◽  
Lean Burn ◽  
Compressed Natural Gas ◽  
Gas Engine ◽  
Natural Gas Engine ◽  
Peak Cylinder Pressure ◽  
Co Emission

The effects of spark advance angle on combustion and emission characteristics of a compressed natural gas engine have been investigated experimentally in this paper. The experimental data was conducted under various excessive air coefficient conditions using an electronic ignition system developed self-dependently. The results show that the peak cylinder pressure and peak rate of pressure rise ascends with the increase of spark advance angle in a certain extent, and their corresponding location are advanced. The CO emission keeps almost the same as the spark advance angle varies in the overall mode range. The HC and NOx emissions ascend with the increase of spark advance angle under the condition that excessive air coefficient is near the theoretical value. Under the lean-burn condition, the HC and NOx emissions are almost the same while the spark advance angle varies.

Study on Modified Natural Gas Engine Considering NOx Emission

2013 ◽  
Vol 318 ◽  
pp. 371-374
Author(s):  
Chen Fan
Keyword(s):  
Diesel Engine ◽  
Natural Gas ◽  
Nox Emission ◽  
Emission Characteristics ◽  
Gas Engine ◽  
Natural Gas Engine ◽  
Low Nox Emission ◽  
Engine Power

There was a conflict between NOx emission and engine power of modified natural gas engine. Influence facters of NOx emission and emission characteristics of existing modified engine were studied. Emission and engine power of natural gas engine modified from gasoline and diesel engine were compared. Then some sugesstion are brought out for designing low NOx emission natural gas engine and promote engine power.

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