Effects of influencing factors on premixed CH4-O2 combustion in a cylindrical porous media combustor

• DOI: 10.1016/j.cep.2021.108320
• Publication Date: 2021-01-30T16:04:10Z
• Authors: Evans K. Quaye; Jianfeng Pan; Yi Zhang; Qingbo Lu; Yu Wang; Anthony Akurugo A...
• Keywords: Adiabatic flame temperature

Abstract Numerical studies have been conducted on pre-mixed methane-oxygen in a cylindrical porous-media combustor. The Central Composite Design model and the Response Surface Method based on the Genetic Aggregation Algorithm have been applied to investigate the synchronous behavior of key flow parameters on flame temperature, flame velocity, outlet temperature, outlet velocity and wall heat loss. The results show that the flame temperature, flame velocity and the heat loss from the wall increase when the operating parameters increase. Increasing the length of the combustor reduces the outlet temperature and velocity. Comparatively, the inlet velocity and porosity play the most significant roles among the operating parameters. Out of the various design modes, the maximum possible temperature and velocity of the flame are 2542.1 K and 17.252 m/s respectively and that at the combustor outlet are 1454.8 K and 11.129 m/s respectively. The tolerable maximum heat loss through the wall is 476.51 K.