An Experimental Investigation on the Ignition Delay of Fuel Droplets

The results of an experimental investigation of ignition liquid fuel (kerosene, diesel fuel) by the single drops under conditions of radiation-conducting heating in air are presented. The dependences of the ignition delay time of the typical fuels droplets on the initial temperature of the heated oxidant in a limited space are established. The parameters of stable ignition of liquid fuel droplets are set.

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EXPERIMENTAL INVESTIGATION OF THE FUEL DROPLETS EVAPORATION FOR BLENDED FUELS

10.26678/abcm.encit2018.cit18-0621 ◽

2018 ◽

Author(s):

Thiago Augusto Michels ◽

João Fabrício Manoel ◽

Roberto Wolf Francisco Jr.

Keyword(s):

Experimental Investigation ◽

Fuel Droplets ◽

Blended Fuels

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Experimental investigation on the sputtering and micro-explosion of emulsion fuel droplets during impact on a heated surface

International Journal of Heat and Mass Transfer ◽

10.1016/j.ijheatmasstransfer.2018.12.007 ◽

2019 ◽

Vol 132 ◽

pp. 130-137 ◽

Cited By ~ 20

Author(s):

Chunze Cen ◽

Han Wu ◽

Chia-fon Lee ◽

Longjie Fan ◽

Fushui Liu

Keyword(s):

Experimental Investigation ◽

Heated Surface ◽

Fuel Droplets

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Comparative Investigation of N-Heptane Droplet Ignition in High Temperature Convective Environments

Volume 6: Energy Systems: Analysis, Thermodynamics and Sustainability ◽

10.1115/imece2007-43196 ◽

2007 ◽

Author(s):

J. Chen ◽

X. F. Peng ◽

Y. G. Ju ◽

B. X. Wang

Keyword(s):

High Temperature ◽

Ignition Delay ◽

Comparative Investigation ◽

Elementary Reactions ◽

Fuel Droplets ◽

Ignition Delay Times ◽

Delay Times ◽

One Step ◽

Flame Behavior ◽

Skeletal Mechanism

A 2-D numerical model was proposed to investigate the ignition of liquid fuel droplets in convective environments at high temperature. This model employed a skeletal mechanism consisting of 34 reactive species and 56 elementary reactions, rather than one-step overall reaction as in normal 2-D droplet ignition models, because the skeletal mechanism for n-heptane reproduces ignition delay times at various temperatures and pressures reasonably well. In present investigation an emphasis was addressed on the comparative analysis of suitability of the model, particularly numerical simulations were compared with experiments available in the literature, or for N-heptane droplets ignition in the convective air at temperature in a range of 1100K∼1400K and velocity of 2m/s. The ignition delay time and ignition position were obtained using an ignition criterion based on OH radical mass fraction. The flame behavior after ignition was also studied comparatively. The agreement between numerical simulation and experiments is reasonably good.

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Experimental Investigation of Ignition Delay of Bio-Diesel and Its Blends

10.4271/2020-01-2152 ◽

2020 ◽

Author(s):

Ajay Nain

Keyword(s):

Experimental Investigation ◽

Ignition Delay

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Effect of Additives on the Cetane Ratings of Diesel Fuels as Related to the Ignition Delays of Liquid Fuel Droplets Impinging on a Hot Surface

Proceedings of the Institution of Mechanical Engineers ◽

10.1243/pime_proc_1972_186_034_02 ◽

1972 ◽

Vol 186 (1) ◽

pp. 317-321 ◽

Cited By ~ 4

Author(s):

S. Satcunanathan ◽

M. S. El Nesr

Keyword(s):

Ignition Delay ◽

Liquid Fuel ◽

Diesel Fuels ◽

Fuel Droplets ◽

Effect Of Additives ◽

Hot Surface

Results of an investigation show that the effects of additives on the ignition delays of liquid fuel droplets impinging on a hot surface correlate satisfactorily with their effects on the cetane ratings of diesel fuels. It is also shown that additives for diesel fuels may be divided into three categories according to their effects on the above mentioned ignition delays, viz. (1) those that reduce the ignition delay at all dosages, (2) those that reduce the ignition delay at small dosages but increase it at high dosage and (3) those that do not have any significant effect on the ignition delay.

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