flame speed

flame speed

[′flām ‚spēd]
(chemistry)
The rate at which combustion moves through an explosive mixture.

flame speed

The rate of propagation of a flame through a gaseous fuel-and-oxidizer mixture relative to a fixed reference point.
References in periodicals archive ?
In this regime, turbulence does not affect the inner flame structure, and therefore the chemical reactions and molecular diffusion processes inside the flame can be described by the laminar flame speed (LFS).
The hydrogen in the reformed fuel increases flame speed and improves combustion stability, allowing higher EGR levels with attendant benefits for engine efficiency.
In addition, it provides outstanding scrub resistance, superior washability and 'class 1 flame speed resistance' in case of fire.
Explosions have a very high flame speed and are similar to TNT in effect.
According to the ignition delay time and flame speed in Figure 3, the UC San Diego mechanism, LLNL N-Butane mechanism, and H.
It is a good practice to include a component from the major hydrocarbon group in fuel blend surrogates for emulating ignition delay, laminar flame speed, and fuel speciation.
Both flame speed and flame thickness change during the combustion event in a constant volume chamber.
Syngas containing more hydrogen would cause higher cylinder pressure and cylinder temperature due to the high flame speed and high calorific value of hydrogen.
The library automatically accounts for the interdependencies between fuel components that might affect the laminar flame speed. This automation replaces the alternative: using power-law correlations that assume independent factors (namely, pressure, equivalence ratio, temperature, dilution and fuel structure).
The start of control is passed to the turbine from "speed zero" to safe operating speed by supplying the right amount of fuel to establish the flame speed in a way that minimizes the fatigue cycle down.
Engine speed also contributes to cycle to cycle variation in combustion, where increasing the engine speed resulted in an increase in flame speeds and cyclic flame speed variations.