Effect of flame power on combustion stability and emissions of a lean swirling NH3/CH4 flame
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Từ khóa:
NH3/CH4 combustion
swirling flame
flame power
non-premixed combustion
emissions
Tóm tắt
This study numerically investigates the combustion behavior and pollutant formation of a lean swirling NH3/CH4 flame with a fixed fuel blend of 80% NH3 and 20% CH4, under flame powers ranging from 313 to 783 W. Results indicate that increasing flame power elongates the flame and shifts the primary reaction zone downstream, while the peak flame temperature reaches a maximum at 626 W and slightly decreases at higher power. NOₓ emissions decrease monotonically with increasing flame power, whereas CO concentrations diminish downstream at higher powers. CO₂ remains concentrated in the high-temperature flame core with minimal sensitivity to flame power. These findings demonstrate that flame power plays a crucial role in regulating flame structure and emissions in swirling NH3/CH4 combustion systems.
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Mar 31, 2026
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Do, P. N., và T. T. Ho. “Effect of Flame Power on Combustion Stability and Emissions of a Lean Swirling NH3/CH4 Flame”. Tạp Chí Khoa học Và Công nghệ Đại học Đà Nẵng, vol 24, số p.h 3, Tháng Ba 2026, tr 16-24, doi:10.31130/ud-jst.2026.24(3).054E.
