Investigation of the influence of the configuration of the fire furnace chamber on the temperature regime during the implementation of tests for fire resistance.

Abstract

The issue related to the conditions for cre ating the required temperature regime of fire when testing structures for fire resistance has not been studied in detail up to now. That necessitated determining the technical condi tions under which it is possible to comply with the standard temperature regime of fire in the fire chamber of the furnace. The influence of the design parameters of the fire furnace chamber on the condition of compliance with the standard fire temperature regime when tested for fire resistance has been established. One of the most effective methods for exami ning such an impact is computer simulation. A computer model of the fire furnace was built on the basis of a comprehensive analysis and earlier work on the study of such furnaces, taking into consideration technical charac teristics, in particular, geometrical parame ters, fuel and air supply systems. The obtained research results are a prerequisite for scien tific substantiation of the design parameters of fire furnaces and their engineering systems, which is necessary to comply with the stan dard temperature regime of fire in the fur nace fire chamber. This makes it possible to provide the necessary conditions for testing building structures for fire resistance in com pliance with the requirements of the relevant standards. The computer model constructed makes it possible to create the necessary tem perature regime in the fire chamber of the fur nace (in this study, the standard temperature of fire). As a result of the study, the technical parameters of the fuel supply and ventilation system were determined, which ensure com pliance with the standard temperature regime in the fire chamber of the furnace. That makes it possible to build an automated complex of the testing process for fire resistance of build ing structures. In addition, the data obtained can be the basis for the design of such fire fur naces with the ability to comply with different fire temperature regimes without the interven tion of the operator