Understanding cool flames and warm flames

2020 ◽  
Author(s):  
Yiguang Ju
Keyword(s):  
Cool Flames

A mathematical model of the cool-flame oxidation of acetaldehyde

1971 ◽  
Vol 322 (1550) ◽  
pp. 377-403 ◽  
Keyword(s):  
Mathematical Model ◽  
Negative Temperature ◽  
Isothermal Oxidation ◽  
Limited Range ◽  
Detailed Model ◽  
Cool Flame ◽  
Induction Periods ◽  
Cool Flames ◽  
Satisfactory Account ◽  
Flame Oxidation

A detailed mathematical model of the non-isothermal oxidation of acetaldehyde has been found to give a realistic simulation of (i) single and multiple cool flames, their limits, amplitudes and induction periods; (ii) two-stage ignition; and (iii) the negative temperature coefficient for the maximum rate of slow combustion. A simplified form of the model, valid over a limited range of conditions, has been subjected to mathematical analysis to provide interpretations of the effects simulated by the detailed model. It is concluded that cool flames are thermokinetic effects often, but not exclusively, of an oscillatory nature, and that a satisfactory account of cool-flame phenomena must necessarily take reactant consumption into account.

Decreased mixture reactivity and hot flame speed in the products of diffusion-affected autoignitive cool flames in the NTC regime

2020 ◽  
Vol 222 ◽  
pp. 434-445
Author(s):  
Bruno Savard ◽  
Armin Wehrfritz ◽  
Katherine Lam ◽  
Quentin Margerte ◽  
Louis Ferney ◽  
...  
Keyword(s):  
Flame Speed ◽  
Cool Flames

Kinetic effects of n-propylbenzene on n-dodecane counterflow nonpremixed cool flames

2019 ◽  
Vol 208 ◽  
pp. 262-272 ◽  
Author(s):  
Omar R. Yehia ◽  
Christopher B. Reuter ◽  
Yiguang Ju
Keyword(s):  
Cool Flames ◽  
Kinetic Effects

Slow oxidation of hydrocarbons and cool flames

1969 ◽  
Vol 73 (10) ◽  
pp. 3395-3406 ◽  
Author(s):  
Ching-Huan Yang ◽  
Brian F. Gray
Keyword(s):  
Cool Flames ◽  
Oxidation Of Hydrocarbons
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