Burn rate
The burning rate r describes the stationary burning of an explosive . It is usually given in mm / s. The pressure dependency of the burn-up of an explosive describes the Vielles law
with a being the exponential factor ([a] = mm / (s · Pa n )), which indicates the influence of temperature on the burning rate, p is the prevailing pressure ([ p ] = Pa ) and n is the dimensionless pressure exponent.
The product of charge density , specific energy and burn rate is explosive (chemistry) .
The many parameters of a propellant charge are the main criteria according to which the propellant charges are selected for the respective purpose.
In short-barreled weapons ( pistols and revolvers ), propellants with a high burn rate (offensive powder) are used. Propellant charges with a high burn rate are also used for shotgun cartridges .
For long guns and those that have to accelerate high projectile masses, slow-burning propellants, so-called progressive powders, are used .
The burning rate is influenced by the following parameters, among others:
- Chemical composition
- Surface texture
- Additives
- temperature
- pressure
See also
- Detonation rate - the corresponding value for explosives
Web links
- Burn rate (accessed April 9, 2020)
- Fire behavior of wood and wood-based materials (accessed on April 9, 2020)
- Classification system for the fire behavior of different types of wood (accessed on April 9, 2020)
- Influencing variables on the charring behavior of wooden components and their consideration in empirical and numerical assessment procedures (accessed on April 9, 2020)
- Investigation of the burn-off and combustion gases of selected types of wood depending on the chemical and structural wood structure (accessed on April 9, 2020)
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This article is based on the article burn rate from the free encyclopedia WaffenWiki and is available under the GNU Free Documentation License . A list of the authors is available in the WaffenWiki . |