Combustion and emission characteristics of natural gas engine with partial-catalytic oxidation of the fuel

Fuel ◽  
2022 ◽  
Vol 312 ◽  
pp. 122796
Author(s):  
Jian Zheng ◽  
Rui Zhou ◽  
Reggie Zhan ◽  
He Lin
Keyword(s):  
Natural Gas ◽  
Catalytic Oxidation ◽  
Emission Characteristics ◽  
Gas Engine ◽  
Natural Gas Engine

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.

The influences of hydrogen on the performance and emission characteristics of a heavy duty natural gas engine

2011 ◽  
Vol 36 (5) ◽  
pp. 3739-3745 ◽  
Author(s):  
Cheolwoong Park ◽  
Changgi Kim ◽  
Young Choi ◽  
Sangyeon Won ◽  
Yasuo Moriyoshi
Keyword(s):  
Natural Gas ◽  
Emission Characteristics ◽  
Heavy Duty ◽  
Gas Engine ◽  
Performance And Emission ◽  
Natural Gas Engine

Transient emission characteristics of a heavy-duty natural gas engine at stoichiometric operation with EGR and TWC

Energy ◽  
2017 ◽  
Vol 132 ◽  
pp. 225-237 ◽  
Author(s):  
Qiang Zhang ◽  
Menghan Li ◽  
Guoxiang Li ◽  
Sidong Shao ◽  
Peixin Li
Keyword(s):  
Natural Gas ◽  
Emission Characteristics ◽  
Heavy Duty ◽  
Gas Engine ◽  
Natural Gas Engine

Soot and combustion models for direct-injection natural gas engines

2020 ◽  
pp. 146808742097801
Author(s):  
Kang Pan ◽  
James Wallace
Keyword(s):  
Kinetic Model ◽  
Natural Gas ◽  
Soot Formation ◽  
Direct Injection ◽  
Emission Characteristics ◽  
Gas Engine ◽  
Glow Plug ◽  
Natural Gas Engines ◽  
Natural Gas Engine ◽  
Soot Model

This paper summarizes the validation of a modified multi-step phenomenological soot model and an enhanced combustion model used for direct-injection natural gas engines. In this study, a modified phenomenological soot model including the key steps for soot formation, such as particle inception and surface growth, was developed in KIVA-3V to replace the empirical model for use in a glow plug assisted natural gas direct-injection engine. The soot model was integrated with a CANTERA based kinetic model, which employs a recently developed low temperature natural gas mechanism to predict the reactions of some important gaseous species involved in the soot formation, such as acetylene and hydroxyl. The simulated in-cylinder flame propagation process induced by a glow plug was compared to the experimental optical images obtained in an engine-like environment. In addition, both the kinetic model and modified soot model were compared with the experimental emission data to validate their reliability for predicting natural gas engine emission characteristics. The engine combustion efficiencies obtained in simulations and experiments were compared as well. The matched results suggest that the computational models can well predict the natural gas combustion and emission characteristics, and will be suitable for investigating the direct-injection natural gas engine technologies.

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