Experimental study and kinetic analysis of the laminar burning velocity of NH3/syngas/air, NH3/CO/air and NH3/H2/air premixed flames at elevated pressures

2020 ◽  
Vol 221 ◽  
pp. 270-287 ◽  
Author(s):  
Shixing Wang ◽  
Zhihua Wang ◽  
Ayman M. Elbaz ◽  
Xinlu Han ◽  
Yong He ◽  
...  
Keyword(s):  
Experimental Study ◽  
Kinetic Analysis ◽  
Burning Velocity ◽  
Premixed Flames ◽  
Laminar Burning Velocity ◽  
Elevated Pressures

scholarly journals Laminar burning velocity and Markstein length of ammonia/hydrogen/air premixed flames at elevated pressures

2015 ◽  
Vol 40 (30) ◽  
pp. 9570-9578 ◽  
Author(s):  
Akinori Ichikawa ◽  
Akihiro Hayakawa ◽  
Yuichi Kitagawa ◽  
K.D. Kunkuma Amila Somarathne ◽  
Taku Kudo ◽  
...  
Keyword(s):  
Burning Velocity ◽  
Premixed Flames ◽  
Laminar Burning Velocity ◽  
Markstein Length ◽  
Elevated Pressures

Analysis of Combustion Flame of Syngas-Air Mixtures

2010 ◽  
Author(s):  
Eliseu Monteiro ◽  
Abel Rouboa
Keyword(s):  
Energy Source ◽  
Burning Velocity ◽  
Biomass Gasification ◽  
Producer Gas ◽  
Laminar Burning Velocity ◽  
Volume Percentage ◽  
Elevated Pressures ◽  
Syngas Combustion ◽  
Fundamental Understanding ◽  
Heat Value

In the proposed paper for this conference, three typical mixtures of H2, CO, CH4, CO2 and N2 have been considered as representative of the producer gas (syngas) resulting from biomass gasification. Syngas is being recognized worldwide as a viable energy source, particularly for stationary power generation. However, there are gaps in the fundamental understanding of syngas combustion characteristics, particularly at elevated pressures that are relevant to practical combustors. In this work, constant volume spherical expanding flames of three typical syngas compositions have been employed to measure the laminar burning velocity for pressures ranges between 1.0 and 20 bar. Over the ranges studied, the burning velocities are fitted by the functional formula of Metghalchi and Keck. Conclusion can be drawn that the burning velocity decreases with the increase of pressure. In opposite, the increase of temperature induces the increase of burning velocity. The higher burning velocity value is obtained for the downdraft syngas. This result is endorsed to the higher heat value, lower dilution and higher volume percentage of hydrogen in the downdraft syngas.

scholarly journals EXPERIMENTAL STUDY OF THE EFFECTS OF COAL DUST PARTICLE SIZE ON LAMINAR BURNING VELOCITY IN A MIXTURE OF COAL DUST AND METHAN

2019 ◽  
Vol 34 (4) ◽  
pp. 47-55
Author(s):  
Hadis Moradi ◽  
◽  
Farhang Sereshki ◽  
Mohammad Ataei ◽  
Mohsen Nazari ◽  
...  
Keyword(s):  
Experimental Study ◽  
Particle Size ◽  
Dust Particle ◽  
Coal Dust ◽  
Burning Velocity ◽  
Laminar Burning Velocity
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