NH₃/空気およびNH₃/N₂O/Ar予混合気の火炎・着火特性に関する研究

抄録

Recently, ammonia (NH₃) is attracting attention as a promising hydrogen energy carrier and as a carbonfree fuel in NH₃ direct combustion. It is important to know combustion characteristics of NH₃ and to develop accurate NH₃ reaction mechanism. In the present study, flame characteristics of NH₃/air and NH₃/N₂O mixtures and ignition characteristics of a NH₃/N₂O/Ar mixture were investigated. N₂O was considered here because of an important intermediate in NH₃ combustion. The ignition characteristics of a NH₃/N₂O/Ar mixture were investigated using a micro flow reactor with a controlled temperature profile and a quadrupole mass spectrometer. Numerical predictions computed with the NH₃ chemical reaction mechanism were compared with the experimental data obtained from the present experiments and literature.