Heat Transfer to the Electrodes a Possible Explanation of Misfire in SI-Engines

Head-on Quenching of Transient Laminar Flame: Heat Flux and Quenching Distance Measurements

“…Therefore, for single-wall quenching, the value of quenching distance is typically evaluated from experimentally measured maximum wall heat flux (Huang et al, 1986;Vosen et al, 1984) using a simple relationship relating these two parameters: where d q is the quenching distance, Q w is the maximum wall heat flux, k is the thermal conductivity of gas, and DT is the temperature difference across the quenching layer. Equation (1) is also often used for theoretical analysis of ignition (Dulger et al, 1994;Sher et al, 1992) and flame-wall interaction (Poinsot et al, 1993). Shortage and significant dispersion of experimental results-the quenching distance values obtained by Vosen et al (1984) are twice less than Cleary et al (1995) values-prove clearly that accumulation of experimental data on flame quenching on a single wall is not yet sufficient.…”

“…The study of flame quenching near the wall is of key importance, because it may be related to other combustion phenomena of engineering application, such as ignition and possible misfiring in internal combustion engines, optimization of combustion, and reduction of the amount of unburned hydrocarbons (Alkidas, 1999;Dulger et al, 1994;Popp and Baum, 1997;Sher et al, 1992).…”