The Proceedings of the Thermal Engineering Conference
Online ISSN : 2424-290X
2015
Session ID : F222
Conference information
F222 Active combustion control of simulant biogas with different fuel composition through manipulation of mixing process
Masahiro KurodaTakuma AkaoYu SaikiYojiro Ishino
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CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract
The simulant biogas-air coaxial jet flow and combustion are actively controlled through periodic excitation of the initial jet shear layer with arrayed miniature jet actuators. In the present study, CH_4 fuel is diluted by N_2 or CO_2 with various dilution rates to mimic biogas. Firstly, it is found that the large-scale vortical structures and the associated mixing of biogas-air are flexibly controlled by changing the injection frequency of miniature jet. In addition, it is demonstrated that CO emissions from the biogas flames operated with different fuel dilution rates can be significantly improved by manipulating the mixing upstream of the flame base.
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© 2015 The Japan Society of Mechanical Engineers
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