scholarly journals Calculation of anharmonic effect of the reactions related to NO2 in fuel combustion mechanism

AIP Advances ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 125001 ◽  
Author(s):  
Li Yao ◽  
Wenwen Xia ◽  
Rui Zhao ◽  
Kun Yang
Keyword(s):  
Fuel Combustion ◽  
Combustion Mechanism ◽  
Anharmonic Effect

Anharmonic effect of the reactions related to cyano radical as reactant in fuel combustion mechanism

2019 ◽  
Vol 516 ◽  
pp. 38-47 ◽  
Author(s):  
Rui Zhao ◽  
Duo Gao ◽  
Xinxiang Pan ◽  
Liguo Song ◽  
Hongjing Yu ◽  
...  
Keyword(s):  
Fuel Combustion ◽  
Combustion Mechanism ◽  
Anharmonic Effect ◽  
Cyano Radical

The Calculation Methods of Markstein Numbers and Laminar Burning Velocities for Hydrogen-Air Premixed Mixtures in Constant Volume Combustion Bomb

2014 ◽  
Vol 912-914 ◽  
pp. 382-385
Author(s):  
Heng Jie Hu ◽  
Guo Qing Wang ◽  
Yin Zhu
Keyword(s):  
Reaction Kinetics ◽  
Chemical Reaction ◽  
Automotive Industry ◽  
Fuel Combustion ◽  
Constant Volume ◽  
Combustion Mechanism ◽  
Calculation Methods ◽  
Chemical Reaction Kinetics ◽  
Important Means ◽  
Premixed Laminar

Energy and emissions are the two major problems the automotive industry facing currently. Hydrogen has been of great concern worldwide as a renewable clean fuel.It has burn fast, wide flammable range, less pollution, and many other advantages. Premixed laminar burning is an important part of researching combustion mechanism,and Is an important means of developing and verifying fuel combustion chemical reaction kinetics mechanism.

Computational modeling of high pressure combustion mechanism in scram accelerator

2000 ◽  
Vol 10 (PR11) ◽  
pp. Pr11-131-Pr11-141 ◽  
Author(s):  
J.-Y. Choi ◽  
B.-J. Lee ◽  
I.-S. Jeung
Keyword(s):  
High Pressure ◽  
Computational Modeling ◽  
Combustion Mechanism

WET BURNING – THE MODERN TREND IN ENVIRONMENTAL BENIGN FUEL COMBUSTION AND IN SOLUTION TO THE PROBLEM OF SUSTAINABLE DEVELOPMENT OF THE POWER GENERATION

2018 ◽  
pp. 96-117 ◽  
Author(s):  
B. S. Soroka
Keyword(s):  
Numerical Simulation ◽  
Nitrogen Oxides ◽  
Chemical Kinetics ◽  
Fuel Combustion ◽  
Transport Processes ◽  
Cfd Modeling ◽  
Furnace Chamber ◽  
Modern Trend ◽  
Atmospheric Air ◽  
No Formation

The article considers the role and place of water and water vapor in combustion processes with the purpose of reduction the effluents of nitrogen oxides and carbon oxide. We have carried out the complex of theoretical and computational researches on reduction of harmful nitrogen and carbon oxides by gas fuel combustion in dependence on humidity of atmospheric air by two approaches: CFD modeling with attraction of DRM 19 chemical kinetics mechanism of combustion for 19 components along with Bowman’s mechanism used as “postprocessor” to determine the [NO] concentration; different thermodynamic models of predicting the nitrogen oxides NO formation. The numerical simulation of the transport processes for momentum, mass and heat being solved simultaneously in the united equations’ system with the chemical kinetics equations in frame of GRI methane combustion mechanism and NO formation calculated afterwards as “postprocessor” allow calculating the absolute actual [CO] and [NO] concentrations in dependence on combustion operative conditions and on design of furnace facilities. Prediction in frame of thermodynamic equilibrium state for combustion products ensures only evaluation of the relative value of [NO] concentration by wet combustion the gas with humid air regarding that in case of dry air – oxidant. We have developed the methodology and have revealed the results of numerical simulation of impact of the relative humidity of atmospheric air on harmful gases formation. Range of relative air humidity under calculations of atmospheric air under impact on [NO] and [CO] concentrations at the furnace chamber exit makes φ = 0 – 100%. The results of CFD modeling have been verified both by author’s experimental data and due comparing with the trends stated in world literature. We have carried out the complex of the experimental investigations regarding atmospheric air humidification impact on flame structure and environmental characteristics at natural gas combustion with premixed flame formation in open air. The article also proposes the methodology for evaluation of the nitrogen oxides formation in dependence on moisture content of burning mixture. The results of measurements have been used for verification the calculation data. Coincidence of relative change the NO (NOx) yield due humidification the combustion air revealed by means of CFD prediction has confirmed the qualitative and the quantitative correspondence of physical and chemical kinetics mechanisms and the CFD modeling procedures with the processes to be studied. A sharp, more than an order of reduction in NO emissions and simultaneously approximately a two-fold decrease in the CO concentration during combustion of the methane-air mixture under conditions of humidification of the combustion air to a saturation state at a temperature of 325 K.

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