Turbulent burning rates of methane and methane-hydrogen mixtures
- School of Process, Environmental and Materials Engineering, University of Leeds, Leeds LS2 9JT (United Kingdom)
- School of Mechanical Engineering, University of Leeds, Leeds LS2 9JT (United Kingdom)
- Department of Mechanical Engineering, University of Sheffield, Sheffield S1 3JD (United Kingdom)
Methane and methane-hydrogen (10%, 20% and 50% hydrogen by volume) mixtures have been ignited in a fan stirred bomb in turbulence and filmed using high speed cine schlieren imaging. Measurements were performed at 0.1 MPa (absolute) and 360 K. A turbulent burning velocity was determined for a range of turbulence velocities and equivalence ratios. Experimental laminar burning velocities and Markstein numbers were also derived. For all fuels the turbulent burning velocity increased with turbulence velocity. The addition of hydrogen generally resulted in increased turbulent and laminar burning velocity and decreased Markstein number. Those flames that were less sensitive to stretch (lower Markstein number) burned faster under turbulent conditions, especially as the turbulence levels were increased, compared to stretch-sensitive (high Markstein number) flames. (author)
- OSTI ID:
- 21168977
- Journal Information:
- Combustion and Flame, Vol. 156, Issue 4; Other Information: Elsevier Ltd. All rights reserved; ISSN 0010-2180
- Country of Publication:
- United States
- Language:
- English
Similar Records
Afterburning in spherical premixed turbulent explosions
Premixed flamelet modelling: Factors influencing the turbulent heat release rate source term and the turbulent burning velocity