A simple model based on a Perfectly Stirred Reactor (PSR) is proposed for moderate or intense low-oxygen dilution (MILD) combustion. The PSR calculation is performed covering the entire flammability range and the tabulated chemistry approach is used with a presumed joint probability density function (PDF). The jet, in hot and diluted coflow experimental set-up under MILD conditions, is simulated using this reactor model for two oxygen dilution levels. The computed results for mean temperature, major and minor species mass fractions are compared with the experimental data and simulation results obtained recently using a multi-environment transported PDF approach. Overall, a good agreement is observed at three different axial locations for these comparisons despite the over-predicted peak value of CO formation. This suggests that MILD combustion can be effectively modelled by the proposed PSR model with lower computational cost.ZC acknowledges the financial support of Cambridge Overseas Trusts and China Scholarship Council. SR and NS acknowledge the support of European Union funding through the project AMEL. NAKD acknowledges the financial support of the Qualcomm European Research Studentship Fund in Technology. VMR and WLR acknowledge the support from Center Competitive Fund from KAUST.This is the author accepted manuscript. It is currently under an indefinite embargo pending publication by Elsevier
