A comprehensive methodology for assessing the effectiveness of fire suppression with foam based on the quality of fire suppression and economic feasibility
DOI:
https://doi.org/10.33408/2519-237X.2026.10-1.87Keywords:
foam generator, sprinkler, compression foam generating unit, foam expansion rate, foam extinguishing efficiency, extinguishing time, extinguishing agent consumption, economic efficiencyAbstract
Purpose. To develop a comprehensive methodology for evaluating the fire suppression effectiveness of low-expansion air-mechanical foam and conduct field testing of foam generating devices. To evaluate the cost-effectiveness of using low-expansion air-mechanical foam.
Methods. The fire extinguishing efficiency of foam generated by various devices was assessed experimentally, and the obtained experimental data was processed using the method of estimating and expressing the uncertainty of measurements.
Findings. A comprehensive methodology for evaluating the fire extinguishing efficiency of low-expansion air-mechanical foam has been developed. To determine the extinguishing efficiency, comparative tests were conducted: for foam generators – SVP and SVP-2 nozzles, NVP-11/0.6 U1 water-foam nozzle for the SRK-50 fire nozzle and air-foam nozzle for the SPRUK 50/0.7 fire nozzle; for compression foam generating systems – SPRU 50/0.7 fire nozzles and Elkhart Brass ST-185A with compression foam delivery; for automatic fire extinguishing systems – V2, TY 3251, DPU-15, DVN-11 sprinklers. Evaluation of economic efficiency demonstrates the feasibility of using low-expansion air-mechanical foam in extinguishing fires and allows choosing the optimal means for eliminating emergency situations both in terms of safety and cost savings.
Application field of research. The developed methodology for evaluating the fire suppression effectiveness of low-expansion air-mechanical foam can be applied in the development and modernization of domestic technical regulatory legal acts in this field, as well as for studying devices (including newly developed ones) for generating air-mechanical foam under conditions similar to a real fire. Furthermore, using this comprehensive methodology it is possible to select the most effective means for emergency response from a safety and cost perspective.
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