The laminar combustion characteristics of natural gas-hydrogen-air-diluent gas mixtures were studied in a constant volume combustion bomb at the initial pressure of 0.1 MPa and the initial temperature of 285 K. Unstretched laminar burning velocity was obtained under various hydrogen fractions, diluent ratios and equivalence ratios by using nitrogen and CO2 as diluent gas respectively. The effect of diluent gas on burning velocity was analyzed. The results show that the unstretched laminar burning velocity increases with the increase of hydrogen fraction but decreases with the increase of diluent ratio. CO2 has greater effect on burning velocity than nitrogen does.
|Number of pages
|Ranshao Kexue Yu Jishu/Journal of Combustion Science and Technology
|Published - 1 Apr 2010