Low NOX combustion characteristics by hydrogen micro jet flame in cross flow

Many researches have been conducted on NO x reduction by micro jet combustion of hydrogen. In this study a can- type micro jet combustion with jet in cross flow (JICF) was proposed for low-pressure loss and NO x emission. The momentum ratio (J) of the micro fuel jet and air flow in JICF was changed...

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Bibliographic Details
Published in:Journal of mechanical science and technology 2023, 37(1), , pp.445-455
Main Authors: You, Chang-Hyun, Lee, Ho-Yeon, Hwang, Sang-Soon
Format: Article
Language:English
Subjects:
Air flow
Combustion
Control
Cross flow
Dynamical Systems
Emissions
Engineering
Fuels
Industrial and Production Engineering
Jet flow
Low pressure
Mechanical Engineering
Momentum
Nitrogen oxides
Original Article
Pressure drop
Pressure loss
Thermodynamic efficiency
Vibration
기계공학
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Summary:Many researches have been conducted on NO x reduction by micro jet combustion of hydrogen. In this study a can- type micro jet combustion with jet in cross flow (JICF) was proposed for low-pressure loss and NO x emission. The momentum ratio (J) of the micro fuel jet and air flow in JICF was changed to investigate micro flame stabilization. Recess length was also changed to know if the mixing time of the fuel jet and air is guaranteed. The results show that burner thermal efficiency was enhanced through simple can type burner with low pressure drop and the larger J tends to become more favorable condition for micro flame formation. And a stable micro flame can be established even at the low momentum ratio if enough mixing time is guaranteed. NO x data show that a can-type micro hydrogen burner with JICF configuration exhibits high potential for single-digit NO x emission.
ISSN:1738-494X
1976-3824
DOI:10.1007/s12206-022-1242-z