Experimental and Modeling Study on Auto-Ignition of Methane/Hydrogen Blends at Elevated Pressures Xi'an Jiaotong Univ

Format:

Conference/Event

Author/Creator:

Zhang, Zhang, author.

Conference Name:

SAE 2014 World Congress & Exhibition (2014-04-08 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2014

Summary:

AbstractBoth experimental and simulated ignition delay times were obtained behind reflected shock waves for the diluted stoichiometric methane/hydrogen blends with hydrogen fractions of 20%, 60%, and 80%. Test temperatures are from 1000 K to 1820 K and pressures are from 0.5 to 2.0 MPa. Results showed that increase in hydrogen fraction can promotes significantly the ignition of methane due to higher activity of hydrogen. Pressure-dependence of auto-ignition was observed in three ignition regimes (methane chemistry dominating ignition, combined chemistry of methane and hydrogen dominating ignition and hydrogen chemistry dominating ignition). Kinetic model, NUIG Mech C5_49, was used and validated against current ignition data. It was found that NUIG Mech C5_49 can give a good prediction for all test mixtures. A fuel flux analysis was performed to explain the chemical interaction between methane and hydrogen

Notes:

Vendor supplied data

Publisher Number:

2014-01-1335

Access Restriction:

Restricted for use by site license