Self-ignition of hybrid (H2+ atomized liquid hydrocarbon fuel+gaseous oxidizer) mixtures at engine relevant conditions

• Published in: Symposium, International, on Combustion Vol. 26; no. 2; pp. 2573 - 2579
• Main Authors: Gelfand, B.E., Bartenev, A.M., Khomik, S.V., Medvedev, S.P., Polenov, A.N.
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 1996
• ISSN: 0082-0784
• DOI: 10.1016/S0082-0784(96)80090-7

The self-ignition of several nondiluted hybrid mixtures of gaseous hydrogen+atomized liquid hydrocarbon fuel+gaseous oxygen was studied at high pressure. Decane has been used as a representative hydrocarbon liquid fuel. Hydrogen mass fraction range was (3–35%) in compound fuel.
Experiments have been performed using the reflected shock wave technique. Recordings of pressure and light emission were analyzed. The hybrid mixtures exhibited only strong self-ignition modes. It was demonstrated that hydrogen is a very weak promoter of self-ignition phenomena for the mixtures of atomized decane+gaseous oxygen. Additional experimental data on the self-ignition features of hydrogen+oxygen mixtures at high pressure were obtained.