THE EFFECT OF CONDITIONS OF GAS EXCHANGE AND THE INITIAL TEMPERATURE OF THE FORMATION OF DANGEROUS FIRE FACTORS AT THE INITIAL STAGE OF FIRE

The regulations for determining the timing of the critical values of the hazards of fire use volume average characteristics of temperature, concentration of O2, toxic gases and smoke. The purpose of this work is to show that the calculation of the time needed to consider offensive dangerous fire factors place escape of gases and their initial values. The data provided by this work can be used to determine the values of the dangerous fire factors parameters in the room up to date with regard to the location escape of gases and their initial parameters. The work shows the differences in time with regard to the location expiry, to put the volume of 5000 m3 up to 30 seconds to reach the critical temperature and critical concentration of O2 particular note is that if you change the height of the zone of the time difference increases to 40 seconds on both counts.