Krízový manažment / Crisis Management

Krízový Manažment 2019, 18(1):21-26 | DOI: 10.26552/krm.C.2019.1.21-26

VLASTNOSTI LÁTOK, KTORÉ MAJÚ VPLYV NA PARAMETER - TEPLOTU SAMOVZNIETENIA

Iveta CONEVA

Katedra požiarneho inžinierstva, Fakulta bezpečnostného inžinierstva, Žilinská univerzita v Žiline, ul. 1.mája 32, 010 26 Žilina

The paper deals with the problem of self-ignition and self-heating processes focusing on the influence of properties of flammable substances and materials on the fire-technical parameter: temperature of self-ignition. Self-ignition and self-heating are processes where the heat needed for ignition of the substance occurs in the substance itself as a consequence of chemical, physical or biological processes. Self-ignition occurs as a consequence of self-heating in the volume of combustible material, a flammable set, where insufficient heat is discharged into the environment and vice versa, the heat accumulates in the materials. The process of self-ignition of flammable substances and materials characterizes the fire-technical parameter: auto-ignition temperature. The auto-ignition temperature is the lowest temperature at which the exothermic processes leading to self-ignition, which may be expressed in flameless or flame mode, start without an extemal heat supply. The temperature of self-ignition depends mainly on the chemical and physical properties of flammable substances and materials, and on the reaction conditions in which the self-ignition processes take place.

Kľúčové slová: Fire, Burning, Ignition, Self-ignition, Properties of combustible materials and materials, Fire-technical parameters, Temperature of self-ignition

Uverejnené: March 30, 2019  Zobraziť citáciu