The influence of CO2 in biogas flammability limit and laminar burning velocity in spark ignited premix combustion at various pressures
The influence of CO2 in biogas flammability limit and laminar burning velocity in spark ignited premix combustion at various pressures
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DOI：
10.1063/1.4943425
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发表时间：
2016-03
期刊：
影响因子：
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通讯作者：
W. Anggono;I. Wardana;M. Lawes;K. Hughes;S. Wahyudi;N. Hamidi;A. Hayakawa
中科院分区：
文献类型：
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作者：
W. Anggono;I. Wardana;M. Lawes;K. Hughes;S. Wahyudi;N. Hamidi;A. Hayakawa
沼气是一种可持续和可再生的替代能源，含有50%以上的甲烷，其最大的杂质或抑制剂是二氧化碳。对替代化石燃料的需求需要更好地从根本上了解其燃烧过程。可燃极限和层流燃烧速度是这些过程的重要特征。因此，本文重点研究了CO2对沼气在火花点火预混燃烧中的燃烧极限和层流燃烧速度的影响。沼气在火花点火的球形燃烧炸弹中燃烧。利用高速数码相机对火花点火初期自由传播的球形膨胀层流预混火焰进行了连续记录。燃烧弹在常温下填充了不同压力、二氧化碳水平和当量比(ϕ)的沼气-空气混合物。研究结果还与之前对不同压力和当量比(ϕ)下的无抑制剂沼气(甲烷)的研究结果进行了比较。伊斯..。
Biogas is an alternative energy source that is sustainable and renewable containing more than 50% CH4 and its biggest impurity or inhibitor is CO2. Demands for replacing fossil fuels require an improved fundamental understanding of its combustion processes. Flammability limits and laminar burning velocities are important characteristics in these processes. Thus, this research focused on the effects of CO2 on biogas flammability limits and laminar burning velocities in spark ignited premixed combustion. Biogas was burned in a spark ignited spherical combustion bomb. Spherically expanding laminar premixed flames, freely propagating from spark ignition in initial, were continuously recorded by a high-speed digital camera. The combustion bomb was filled with biogas-air mixtures at various pressures, CO2 levels and equivalence ratios (ϕ) at ambient temperature. The results were also compared to those of the previous study into inhibitorless biogas (methane) at various pressures and equivalence ratios (ϕ). Eith...