Effect of Ammonia on Laminar Combustion Characteristics of Methane-Air Flames at Elevated Pressures.

ABSTRACT: In this paper, laminar combustion characteristics of methane/ammonia/air flames are numerically investigated using the Chemkin/Premix code. The initial temperature is set as 298 K; the initial pressures are set as 1, 2, 5, 10, and 20 atm; and the equivalence ratios are set as 0.8-1.6. Laminar burning velocity (LBV); adiabatic flame temperature (AFT); net heat release rate (NHRR); and the mole fractions of H, NH₂, NO, NO₂, and HCN at stoichiometric ratio are studied with ammonia (NH₃) addition. Meanwhile, temperature sensitivity and rate of production (ROP) are analyzed. The results show that with the increase of the initial pressures, LBV decreases and AFT and NHRR increase. With the increase of ammonia doping ratios, LBV, AFT, and NHRR decrease. From tempe

SUBMITTER: Jin T 

PROVIDER: S-EPMC9096957 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature