Study Of The Dependence Of Productivity Of Smoke And Heat Removing Means On Their Technical Characteristics (In Ukrainian Context)

Abstract

The paper examines the tactical and technical characteristics that affect the performance of smoke and heat removal devices, and it is proposed to investigate the determined effect. To study the influence of tactical and technical characteristics, the use of two parameters (the angle of inclination of the fan blades and the total active surface area of the blades of the fan impeller) is justified, and the range of these two parameters is determined. The study is devoted to the issue of revealing the dependence of productivity, as a characteristic that directly affects the duration of tactical ventilation by fire and rescue units, on the technical parameters of the smoke and heat removal means. The creation of a mathematical model of the description of the performance indicators of smoke and heat removal devices based on their technical characteristics allows establishing the range of values of the specified parameters, which are accepted during further experimental studies in order to find the optimal values of these parameters. The obtained mathematical model makes it possible to evaluate the effect on the technical parameters of the smoke and heat removal device under different operating conditions, namely: independent operation, simultaneous operation with the supply of finely sprayed water and simultaneous operation with a foam generating unit. The regularity of the dependence of the productivity of smoke and heat removal devices on their technical characteristics has been established as a scientific basis for the improvement of these devices.