વાયુઓનું મિશ્રણ (મોટેભાગે મિથેન),

firedamp's Usage Examples:

) To guard against the possibility of a flame travelling back through the incoming gases (an explosive backblast), air ingress was by a number of small-bore orifices through which the air flowed at a velocity higher than the velocity of the flame in a mixture of firedamp (mostly methane) and air.

An explosion of firedamp, ignited by a safety lamp, in 1858 cost the lives of 25 men and boys.

explosions due to the presence of methane and other flammable gases, called firedamp or minedamp.

The cause was assumed to have been the ignition of firedamp by a safety lamp.

The most common damps are: firedamp – mainly methane, blackdamp or chokedamp – nitrogen and carbon dioxide with no oxygen, whitedamp –.

firedamp, found to be caused by a lighted candle, 90 men suffering from chokedamp or burns escaped but 36 men and boys died.

in which 92 men perished, Sir Humphry Davy established that the feared firedamp was in fact largely methane.

The origin of the firedamp is debatable: either the fractured roof allowed a sudden outburst from the seams above, or else the firedamp was.

explosions of firedamp or coal dust Blackdamp, stythe or choke damp, a suffocating mixture of nitrogen and carbon dioxide Firedamp, any mixture of flammable.

developed for use in mines, controlling and suppressing coal seam fires and neutralising firedamp situations.

work in passages filled with mine gases such as firedamp, afterdamp, chokedamp, and sometimes shallow submersion.

If the lamp were sealed except for a restricted air ingress (and a suitably sized chimney) then the presence of dangerous amounts of firedamp in the incoming air would (by its combustion) reduce the oxygen concentration inside the lamp so much that the flame would be extinguished.

Two advantages of Stephenson's design over Davy's was that if the proportion of firedamp became too high, his lamp would be extinguished, whereas Davy's lamp could become dangerously hot.

Synonyms:

gas,

Antonyms:

understate, unleaded gasoline,