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Experimental and Numerical Investigation of Laminar Burning Velocities of Artificial Biogas Under Various Pressure and CO2 Concentration

Willyanto, and Hayakawa, A and Okafor, Ekenechukwu C. and GOTAMA, GABRIEL JEREMY (2019) Experimental and Numerical Investigation of Laminar Burning Velocities of Artificial Biogas Under Various Pressure and CO2 Concentration. [UNSPECIFIED]

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      Abstract

      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.

      Item Type: UNSPECIFIED
      Uncontrolled Keywords: Combustion characteristics, dilution ratio, renewable fuel, sustainable fuel.
      Subjects: T Technology > TJ Mechanical engineering and machinery
      Divisions: Faculty of Industrial Technology > Mechanical Engineering Department
      Depositing User: Admin
      Date Deposited: 21 Nov 2019 05:10
      Last Modified: 21 Dec 2019 06:11
      URI: http://repository.petra.ac.id/id/eprint/18521

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