E3S Web Conf.
Volume 130, 2019The 1st International Conference on Automotive, Manufacturing, and Mechanical Engineering (IC-AMME 2018)
|Number of page(s)||8|
|Published online||15 November 2019|
Experimental and Numerical Investigation of Laminar Burning Velocities of Artificial Biogas Under Various Pressure and CO2 Concentration
Institute of Fluid Science, Tohoku University,
2 Mechanical Engineering Department, Petra Christian University, Jl. Siwalankerto No.121-131 Surabaya 60236, Indonesia
3 Centre for Sustainable Energy Studies, Petra Christian University, Jl. Siwalankerto No.121-131, Surabaya 60236, Indonesia
* Corresponding author: firstname.lastname@example.org
As a renewable and sustainable fuel made from digestion facility, biogas is composed predominantly of methane (CH4) and carbon dioxide (CO2). CO2 in biogas strongly affects its combustion characteristics. In order to develop efficient combustors for biogas, fundamental flame characteristics of biogas require extensive investigation. In understanding the influence of CO2 concentration and mixture pressure on biogas combustion, the effects of CO2 concentration on the laminar burning velocity of methane/air mixtures were studied at different pressures. The studies were conducted using both numerical and experimental methods. The experiment was conducted using a constant volume high pressure combustion chamber. The propagating flames were recorded with a high speed digital camera by employing Schlieren photography technique. The numerical simulation was carried by utilizing CHEMKIN-PRO with GRI-Mech 3.0 employed as the chemical kinetics model. The results show that the laminar burning velocity of methane-air mixtures decreased with an increase in CO2 concentration and mixture pressure. Therefore, the burning velocity of biogas mixtures may decrease as the amount of CO2 in the gas increases.
Key words: Combustion characteristics / dilution ratio / renewable fuel / sustainable fuel
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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