A comprehensive study on laminar burning velocity and flame stability of oxy-producer gas mixtures. Part-2: Laminar burning velocity and Markstein length analysis

Fuel ◽  
2020 ◽  
pp. 119982
Author(s):  
Muniraja Tippa ◽  
M. Akash ◽  
Senthilmurugan Subbiah ◽  
Chockalingam Prathap
Keyword(s):  
Burning Velocity ◽  
Gas Mixtures ◽  
Flame Stability ◽  
Producer Gas ◽  
Laminar Burning Velocity ◽  
Markstein Length ◽  
Length Analysis ◽  
Comprehensive Study

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.

Effects of initial mixture temperature and pressure on laminar burning velocity and Markstein length of ammonia/air premixed laminar flames

Fuel ◽  
2022 ◽  
Vol 310 ◽  
pp. 122149
Author(s):  
Ryuhei Kanoshima ◽  
Akihiro Hayakawa ◽  
Takahiro Kudo ◽  
Ekenechukwu C. Okafor ◽  
Sophie Colson ◽  
...  
Keyword(s):  
Burning Velocity ◽  
Initial Mixture ◽  
Laminar Flames ◽  
Laminar Burning Velocity ◽  
Markstein Length ◽  
Premixed Laminar Flames ◽  
Temperature And Pressure ◽  
Premixed Laminar

Effects of CH4 mixing on the laminar burning velocity and Markstein length of RP-3/air premixed flame

Fuel ◽  
2021 ◽  
Vol 289 ◽  
pp. 119761
Author(s):  
Yu Liu ◽  
Jinduo Wang ◽  
Wu Gu ◽  
Hongan Ma ◽  
Wen Zeng
Keyword(s):  
Burning Velocity ◽  
Premixed Flame ◽  
Laminar Burning Velocity ◽  
Markstein Length
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