Under
the optimized, fixed feed rate of NH3 m_ f ¼ 10:0 ml=min for the
micro-reformer the production rate of reformed gas m_ r and the
conversion rate of NH3 to H2 and nitrogen (N2) _r increase with
the increasing micro-combustor inlet velocity of NH3–H2–air mixtures
V until a critical condition due to the increased amount of the
supplied fuel,