Experimental and kinetic studies of laminar burning velocities of ammonia with high Lewis number at elevated pressures

•The laminar flame speeds of NH3/O2/He/Ar mixtures at elevated pressures (up to 1.5 MPa) were firstly (to our knowledge) measured.•The measured data expanded the available database of ammonia kinetic model validation targets.•Physical and chemical effects of N2 addition on the production of N2 and N...

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