Effects of fuel stratification on ignition kernel development and minimum ignition energy of n-decane/air mixtures

2019 ◽  
Vol 37 (2) ◽  
pp. 1623-1630 ◽  
Author(s):  
Yuan Wang ◽  
Wang Han ◽  
Zheng Chen
Keyword(s):  
Ignition Energy ◽  
Minimum Ignition Energy ◽  
Kernel Development ◽  
Fuel Stratification ◽  
Ignition Kernel

Ignition and flame quenching of quiescent fuel mists

1978 ◽  
Vol 364 (1717) ◽  
pp. 277-294 ◽  
Keyword(s):  
Reaction Rates ◽  
Ignition Energy ◽  
Minimum Ignition Energy ◽  
Proposed Model ◽  
Theoretical Predictions ◽  
Quenching Distance ◽  
Experimental Values ◽  
Sole Criterion ◽  
Fuel Vapour ◽  
Level Of Agreement

A model is proposed for the ignition of quiescent multidroplet fuel mists which assumes that chemical reaction rates are infinitely fast, and that the sole criterion for successful ignition is the generation, by the spark, of an adequate concentration of fuel vapour in the ignition zone. From analysis of the relevant heat transfer and evaporation processes involved, ex­pressions are derived for the prediction of quenching distance and minimum ignition energy. Support for the model is demonstrated by a close level of agreement between theoretical predictions of minimum ignition energy and the corresponding experimental values obtained using a specially designed ignition apparatus in which ignition energies are measured for several different fuels, over wide ranges of pressure, mixture composition and mean drop size. The results show that both quenching distance and mini­mum ignition energy are strongly dependent on droplet size, and are also dependent, but to a lesser extent, on air density, equivalence ratio and fuel volatility. An expression is derived to indicate the range of drop sizes over which the proposed model is valid.

scholarly journals A model for the minimum ignition energy of dust clouds

2019 ◽  
Vol 121 ◽  
pp. 43-49 ◽  
Author(s):  
Sepideh Hosseinzadeh ◽  
Jan Berghmans ◽  
Jan Degreve ◽  
Filip Verplaetsen
Keyword(s):  
Ignition Energy ◽  
Minimum Ignition Energy ◽  
Dust Clouds

Minimum ignition energy and quenching distance of aluminum dust clouds

2021 ◽  
Author(s):  
Meet Parikh ◽  
Rinrin Saeki ◽  
Rajib Mondal ◽  
Kwangseok Choi ◽  
Wookyung Kim
Keyword(s):  
Ignition Energy ◽  
Minimum Ignition Energy ◽  
Dust Clouds ◽  
Quenching Distance
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