deflagration


Also found in: Dictionary, Thesaurus, Legal, Wikipedia.

deflagration

[‚def·lə′grā·shən]
(chemistry)
A chemical reaction accompanied by vigorous evolution of heat, flame, sparks, or spattering of burning particles.

deflagration

Burning; the rapid combustion of a substance, attended with an extremely sudden evolution of flame and vapor.
References in periodicals archive ?
In deflagration modes, the data can be re-arranged to link the classification as function of the reactivity (burning velocity [S.sub.1]):
Depending on the model and the details that researchers incorporate, a supernova's transition from the slow-burn phase, deflagration, to the fast-burn phase, detonation, can produce different amounts of nickel-56, leading to different inherent brightnesses for the exploded star,
A deflagration vent minimizes the structural and mechanical damage caused by explosion pressures.
Explosion suppression equipment--In a suppression system, sensors on the collector monitor pressure and, in the earliest milliseconds of a deflagration, trigger the injection of a flame-suppressing chemical (Sodium Bicarbonate) into the collector.
Groth Corporation possesses the prestigious ISO 9001 Quality Management Systems certification, conferred by TUV SUD America Inc, in the design and manufacture of Pressure/Vacuum Relief Valves, Deflagration and Detonation Flame Arresters, Emergency Relief Valves, Waste Gas Burners, Blanket Gas Regulators, Sediment Traps, Flame Traps, Check Valves and Drip Traps.
If a deflagration occurs in the dust collector, a pressure wave will travel through the pipe faster than the flame front and close the flap valve, protecting downstream personnel and equipment from injury and damage.
The bursting or rupture of an enclosure or container due to the development of internal pressure from a deflagration or detonation.
NFPA 68 Guide for Venting of Deflagrations (2002) provides data for the deflagration index and shows that it is higher for methane than for [H.sub.2] S.
La deflagration a tue 9 personnes et en a blesse 28 autres, selon Mohammed Hassan Attiya, chef de la securite de la province de Salaheddine.
The citation also found "when combustible wood dust was cleared from surfaces, the employer used cleaning methods that increased the potential for a combustible dust deflagration and or explosion" because "the employer use 30 psi compressed air to blow down and clear combustible wood dust." This citation specifically refers to NFPA 664 (2012) 11.2.1.1 which states "surfaces shall be cleaned in a manner that minimizes the generation of dust clouds ...
The other is deflagration, or subsonic burning, which causes little or no blast.