Abstract
In this study, the explosion parameters of stoichiometric methane–air diluted with nitrogen (N2)/carbon dioxide (CO2) blends, that is, maximum explosion pressure ( Pmax), laminar burning velocity ( SL), and activation temperature ( Ta), were investigated in a closed cylinder vessel. The concentrations of the dilution blends were 10% and 20%. The explosion pressure history was recorded by a pressure transducer. The results indicated that the dilution effect of CO2 is more sensitive than that of N2. For a given dilution concentration, both the maximum explosion pressure and the laminar burning velocity decrease with the increase of CO2. In addition, the activation temperature is higher for increased CO2 blends, demonstrating again that the diluent influence of CO2 is more prominent. © 2018 American Institute of Chemical Engineers Process Saf Prog 38: e12015, 2019
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