Details

Autor(en) / Beteiligte

• Ujiie, Yasushige

Titel

Spark Ignition Properties of Combustible Mixtures under High-Turbulence-Intensity Conditions

Ist Teil von

• JSME International Journal Series B Fluids and Thermal Engineering, 1994/08/15, Vol.37(3), pp.611-617

Ort / Verlag

Tokyo: The Japan Society of Mechanical Engineers

Erscheinungsjahr

1994

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Spark ignition properties of combustible mixtures under high-turbulence-intensity conditions were studied using an ignition device which was able to vary the energy of capacitance and subsequent inductance sparks, independently. The high-intensity turbulence field was generated by mutual collision of injected mixtures at the center of a cylindrical combustion chamber. From observation of schlieren photographs of flame kernel development, it was found that the turbulence had little effect on the flame kernel shape in the incipient stage of ignition process. The experimental results showed that addition of the subsequent spark to the capacitance one improved ignition ability especially under high-turbulence-intensity conditions, and that high ignition ability appeared with an increase in the ratio of the subsequent spark energy to the total spark energy.