Results 71 to 80 of about 541 (112)
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A review on ignition delay times of 2,5-Dimethylfuran
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020The rapid depletion of fossil fuels and the strengthening of emission regulations have been considered as the primary issues in the global energy and environment field, suggesting that the increase...
Trung Thanh Bui +5 more
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An approach of droplet ignition delay time
Heat Transfer—Asian Research, 2008AbstractWhen a droplet is suddenly injected into a high‐temperature environment, the droplet self‐ignition phenomenon occurs. A simple model, based on the temperature history of target gas mixture of which the equivalent ratio is equal to 1, was proposed to predict the droplet ignition delay time in this paper. This approach clearly divides the droplet
Jun Chen, Xiaofeng Peng
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Experimental Investigation on the Ignition Delay Time of Plasma-Assisted Ignition
International Journal of Turbo & Jet-Engines, 2016AbstractThis paper investigates the ignition performances of plasma-assisted ignition in propane/air mixture. The results show that a shorter ignition delay time is obtained for the plasma ignition than the spark ignition and the average ignition delay time of plasma-assisted ignition can be reduced at least by 50%.
Yang Xiao +4 more
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Reaction and ignition delay times in the oxidation of propane
AIAA Journal, 1969Empirical correlations between "reaction" and "ignition delay" times and the pressure, temperature, and composition have been obtained for propaneoxygenargon mixtures. Experiments were conducted by shock heating these mixtures to initial pressures and temperatures between 0.5 and 5.5 atm and 1000° and 1600°K for equivalence ratios and dilutions in the ...
B. F. MYERS, E. R. BARTLE
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Investigation of ignition delay times for ethanol and the Brazilian gasoline
SAE Technical Paper Series, 2022<div class="section abstract"><div class="htmlview paragraph">The prediction of ignition delay times is very useful during the development phase of internal combustion engines. When it comes to biofuels such as ethanol and its blends with gasoline, its importance is enhanced, especially when it comes to flex-fuel engines and the need to ...
João L. Zaions +4 more
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Ignition-delay times in laser initiated combustion
Applied Optics, 1981A single pulse from a TEA CO(2) laser is used to heat 1:7:14 mixtures of SF(6):CH(4):O(2) to temperatures near 1000 K. A short- or long-duration pulse (one-half the energy deposited in 0.25 or 0.82 microsec, respectively) from a second TEA CO(2) laser is used to ignite the mixture. At comparable values of absorbed energy from the second laser, ignition-
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Ignition Delay Times of Jet-A/Air Mixtures
50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 2012Ignition of Jet-A/air mixtures was studied behind reflected shock waves. Heating of shock tube at temperature of 150 0 C was used to prepare a homogeneous fuel mixture. Ignition delay times were measured from OH emission at 309 nm (A 2 Σ – X 2 Π) and from absorption of He-Ne laser radiation at 3.3922 µm.
Zhukov, Victor / V. P. +2 more
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Analytical Solution for the Sensitivity Coefficients of Ignition Delay Times
The Journal of Physical Chemistry AIn this study, a theoretical analysis of the sensitivity coefficients of ignition delay times is performed by using eigenvalue analysis. Using H2/O2 and CH4/H2/O2 kinetic systems as examples, it is demonstrated that the analytical solutions achieve accurate predictions of the sensitivity coefficients of the ignition delay time as compared with the ...
Jingqi Hu, Chung K. Law, Wenkai Liang
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Ignition Delay Time and Laminar Flame Velocity for a Combined Laser–Microwave Ignition
IEEE Transactions on Plasma Science, 2011An analysis of the ignition delay time dependence on microwave energy input time, electric field strength, and discharge energy at high-pressure conditions is presented for a combined laser-microwave ignition. The existence of a saturation power effect at high-pressure conditions is predicted.
Albina A. Tropina +3 more
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Numerical simulation of ignition mode and ignition delay time of pulverized biomass particles
Combustion and Flame, 2019Abstract In this paper, numerical simulations were carried out to identify the mode of ignition and ignition delay time of pulverized biomass particles in hot flue gas produced by a methane/air flame. In the experiments, it was observed that for most biomass residues the dominant combustion mode was the staged gas-phase ignition in the surrounding ...
Hesameddin Fatehi +6 more
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