Experimental Study on the Burning Behavior of Pool Fires in Rooms with Different Wall Linings

Abstract

An experimental test series, comprising 10 experiments with varying pool sizes, lining materials and amounts of liquid burning, was conducted under free burn and room burn conditions. The thermal feedback from the enclosure (ISO 9705 Room Corner Test facility) enhanced the burning rate of the pools and resulted in a thermal runaway in some of the runs. The onset of the thermal runaway, which can be associated with flashover, varied with all the input parameters. The lining with the lowest thermal inertia lead to the fastest increase in the heat release rate (HRR) in the enclosure and caused flashover in the shortest time. Given the profound difference between the enclosure tests and the free burn tests and also between enclosure tests with different linings, it is recommended to show great caution if free burn tests are to be used in design fire scenarios.

Development of the method of frequency­temporal representation of fluctuations of gaseous medium parameters at fire

“…Paper [1] reports experimental study of the processes of starting a fire at premises. The results of studying the processes of combustion of materials under external thermal influence are presented in articles [2,3].…”

“…Experimental analysis of the rate of heat release of combustible materials in case of a fire is carried out in [4]. In papers [1][2][3][4], it was noted that the processes of fire development at premises in general have undefined and essentially non-stationary nature. In this case, the studies are limited to temporal dynamics of basic parameters of the gaseous medium.…”

Design of fire detectors capable of self-adjusting by ignition

“…For such conditions, it is impossible to design in advance the optimal SAFE with predetermined parameters [1,2]. Actual statistics of loss-causing fires testify to the fact that operating conditions of SAFE on modern sites are varied and unpredictable.…”

Examining the learning fire detectors under real conditions of application

“…Such conditions are characteristic for the majority of contemporary and newly designed systems of fire automation [1]. Moreover, the actual conditions of applying fire automation systems are so diverse and unpredictable that it does not seem possible to create a system, which would provide the guaranteed fire-prevention protection of different sites within the framework of systems with fixed parameters.…”

“…The processes of energy conversion in the traction engines of tram carriages are accompanied by its losses in the elements of design due to physical processes at energy conversion [1,2]. Temperature of the elements of design of traction engines increases over the time of operation and can exceed permissible structural limits [2,3].…”