氢
层流
氨
燃烧
热力学
巴(单位)
当量比
化学
层流火焰速度
绝热火焰温度
材料科学
预混火焰
有机化学
物理
气象学
燃烧室
作者
Valentina Pessina,Fabio Berni,Stefano Fontanesi,Alessandro Stagni,Marco Mehl
标识
DOI:10.1016/j.ijhydene.2022.06.007
摘要
Ammonia/hydrogen mixtures are among the most promising solutions to decarbonize the transportation and energy sector. The implementation of these alternative energy carriers in practical systems requires developing suitable numerical tools, able to estimate their burning velocities as a function of both thermodynamic conditions and mixture quality. In this study, laminar flame speed correlations for ammonia/hydrogen/air mixtures are provided for high pressures (40 bar–130 bar) and elevated temperatures (720 K–1200 K), and equivalence ratios ranging from 0.4 to 1.5. Based on an extensive dataset of chemical kinetics simulations for ammonia/hydrogen blends (0-20-40-60-80-90-100 mol% of hydrogen), dedicated correlations are derived using a regression fitting. Besides these blend-specific correlations, a generalized (i.e., hydrogen-content adaptive) formulation, with hydrogen content used as additional parameter, is proposed and compared to the dedicated correlations.
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