Studying of some dangerous factors of the initial stage of fire in residential premises with the use of modern technical means

Introduction. An experimental installation with data logging based on the Arduino platform was developed to implement the approach used in modeling the spread of fire hazards in small rooms. The values of the heat flow from the convective column of the combustion center in the initial stage of the fire for a residential building with a predominant cellulose load were determined using obtained device according to the zone model of the fire. Goals and objectives. The purpose of this work is to create a compact device that allows us to quickly assess the development of fire hazards over time at the initial stage of their occurrence and to hold experiments at objects comparable in size to real fragments of buildings and premises. Methods. An experiment with the use of the field test method of fire hazard testing and an assumption about the possibility of using the developed device in testing the dynamics of the spread of fire hazards in rooms with a cellulose fire load was conducted. It is based on the data about the zonal modeling of the spread of fire hazards using modern technical means. Results and discussions. Experimental studies seem to be a necessary part of the forecast of the spread of fire hazards in residential premises. Field fire tests, which refer to tests of fragments of buildings and structures that are close in size to real objects, are able most accurately convey the conditions that occur in apartments and private homes during the fire phase. The current level of development of microelectronics makes it possible to use hardware and software for a wide range of people, including those who do not have a special education. Device, developed and created by the authors, is based on the Arduino Mega 2560 platform. It is compact and portable. It allows quickly receive and record data from the experiment of modeling fire conditions in small rooms. The obtained results allows us to estimate the level of heat flow of the convective column from the ignited wood, which simulates the fire load in the room to the ceiling, as well as the average temperature of the gas medium and the heat loss coefficient in the ceiling. Conclusions. The using of the experimental device presented by the authors makes it possible to optimize the obtaining of individual characteristics of the dynamics of fire hazards at the initial stage of ignition. Keywords: fire hazards, zone fire model, heat flow, field fire test, arduino platform