The influence of CO2 in biogas flammability limit and laminar burning velocity in spark ignited premix combustion at various pressures

2016 ◽  
Author(s):  
W. Anggono ◽  
I. N. G. Wardana ◽  
M. Lawes ◽  
K. J. Hughes ◽  
S. Wahyudi ◽  
...  
Keyword(s):  
Burning Velocity ◽  
Laminar Burning Velocity ◽  
Flammability Limit ◽  
Premix Combustion

scholarly journals Biogas Laminar Burning Velocity and Flammability Characteristics in Spark Ignited Premix Combustion

2013 ◽  
Vol 423 ◽  
pp. 012015 ◽  
Author(s):  
Willyanto Anggono ◽  
I N G Wardana ◽  
M Lawes ◽  
K J Hughes ◽  
Slamet Wahyudi ◽  
...  
Keyword(s):  
Burning Velocity ◽  
Laminar Burning Velocity ◽  
Premix Combustion ◽  
Flammability Characteristics

scholarly journals Laminar Burning Velocity and Flammability Characteristics of Biogas in Spark Ignited Premix Combustion at Reduced Pressure

2013 ◽  
Vol 376 ◽  
pp. 79-85 ◽  
Author(s):  
Willyanto Anggono ◽  
I.N.G. Wardana ◽  
M. Lawes ◽  
K.J. Hughes ◽  
Slamet Wahyudi ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Atmospheric Pressure ◽  
Burning Velocity ◽  
Initial Pressure ◽  
Dilution Effect ◽  
Laminar Burning Velocity ◽  
Fundamental Study ◽  
Reduced Pressure ◽  
Premix Combustion ◽  
Flammability Characteristics

Biogas as a “Powergas” is an alternative fuel produced in digestion facilities, that is sustainable and renewable. Based on chemical analysis, the composition of the biogas produced in East Java is 66.4% methane, 30.6% carbon dioxide and 3% nitrogen. Methane is a flammable gas, whereas, nitrogen and carbon dioxide are inhibitors. Given it has a different composition to traditional fuels, a fundamental study of biogas flame propagation characteristics is desirable to quantify this important fuel property. Spherically expanding flames propagating at constant pressure are employed to measure the laminar burning velocity and flammability characteristics as mixture function of the mixture composition. These important parameters were measured using a photographic technique in a high pressure fan-stirred bomb. The characteristics of biogas-air flames were initially studied at reduced pressure and at various equivalence ratios from the lower flammable limit to the upper flammable limit. The results were compared with those from biogas-air flames at atmospheric pressure. Based on this experimental investigation, the laminar burning velocities of biogas-air mixtures at reduced pressure were 0.218 m/s for ϕ=0.75, 0.246 m/s for ϕ=0.80 and 0.269 m/s for ϕ=0.85 respectively and only for these biogas mixtures propagated at reduced pressure. At the same equivalence ratio (ϕ), the laminar burning velocities of the biogas-air mixtures at reduced pressure are higher than those at atmospheric pressure. The flammable region of biogas became narrower by reducing initial pressure. The dilution effect is stronger at reduced pressure. Therefore, the flammable composition mixture areas of biogas-air mixtures are more limited at reduced pressure than those at atmospheric pressure.

Effects of CO content on laminar burning velocity of typical syngas by heat flux method and kinetic modeling

2014 ◽  
Vol 39 (17) ◽  
pp. 9534-9544 ◽  
Author(s):  
Yong He ◽  
Zhihua Wang ◽  
Wubin Weng ◽  
Yanqun Zhu ◽  
Junhu Zhou ◽  
...  
Keyword(s):  
Heat Flux ◽  
Kinetic Modeling ◽  
Burning Velocity ◽  
Laminar Burning Velocity ◽  
Flux Method

scholarly journals Laminar Burning Velocity of Biogas-Containing Mixtures. A Literature Review

Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 996
Author(s):  
Venera Giurcan ◽  
Codina Movileanu ◽  
Adina Magdalena Musuc ◽  
Maria Mitu
Keyword(s):  
Gas Turbines ◽  
Internal Combustion Engines ◽  
Fossil Fuels ◽  
Combustion Engine ◽  
Burning Velocity ◽  
Internal Combustion ◽  
Electricity Production ◽  
Engine Fuel ◽  
Laminar Burning Velocity ◽  
Waste Products

Currently, the use of fossil fuels is very high and existing nature reserves are rapidly depleted. Therefore, researchers are turning their attention to find renewable fuels that have a low impact on the environment, to replace these fossil fuels. Biogas is a low-cost alternative, sustainable, renewable fuel existing worldwide. It can be produced by decomposition of vegetation or waste products of human and animal biological activity. This process is performed by microorganisms (such as methanogens and sulfate-reducing bacteria) by anaerobic digestion. Biogas can serve as a basis for heat and electricity production used for domestic heating and cooking. It can be also used to feed internal combustion engines, gas turbines, fuel cells, or cogeneration systems. In this paper, a comprehensive literature study regarding the laminar burning velocity of biogas-containing mixtures is presented. This study aims to characterize the use of biogas as IC (internal combustion) engine fuel, and to develop efficient safety recommendations and to predict and reduce the risk of fires and accidental explosions caused by biogas.

Parametrization of the temperature dependence of laminar burning velocity for methane and ethane flames

Fuel ◽  
2019 ◽  
Vol 239 ◽  
pp. 1028-1037 ◽  
Author(s):  
Xinlu Han ◽  
Zhihua Wang ◽  
Shixing Wang ◽  
Ronald Whiddon ◽  
Yong He ◽  
...  
Keyword(s):  
Temperature Dependence ◽  
Burning Velocity ◽  
Laminar Burning Velocity
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