Fire extinguishing by compressed air foam systems
Keywords:compressed air foam system, fire extinguishing, compressed air foam, field tests
Purpose. The research is devoted to the substantiation of tactical and technical characteristics and application methods of the use of compressed air foam systems to extinguish fires.
Methods. The field tests of compressed air foam systems to determine the fire extinguishing efficiency of conditional seat of Class A fires, the possibility of supply of compressed foam on the upper floors of high-rise buildings, as well as the use of compressed air foam systems at low temperatures.
Findings. Extinguishing of conditional seat of Class A fires by compression foam required 2 times less time and extinguishing substances than while using the nozzle SVP-2. The permissible minimum concentration of foaming agents in water solution for compressed foam in compressed air foam systems has been defined: OPS 0.4 – 0,4%, Sintek and film-forming Bar'er – 2%. The possibility of supplying compressed foam to 18, 25 and 32 floors of high-rise buildings is shown. The pressure drop along the length of hose line when applying dry compression foam were lower than when applying wet compression foam. Besides, the possibility of using compressed air foam systems at low temperatures is determined, whereby compressed foam in hose line freezes, but does not create ice plugs and does not cause damage to a fire hose.
Application field of research. The research results can be used in fire and rescue departments for firefighting by compressed air foam system.
Conclusions. The results of the field test of the compressed air foam system show the effectiveness of extinguishing Class A fires, the possibility of supplying compressed foam to a height of 100 m, as well as its use at low temperatures.
Baratov A.N. Pozharovzryvoopasnost' veshchestv i materialov i sredstva ikh tusheniya [Fire and explosion hazard substances and materials and their means of extinguishing]: Ref. ed.: 2 books; Vol. 1. M.: Khimiya, 1990. 496 p. (rus)
Navrotskiy O.D. Issledovanie parametrov peny, podavaemoy s pomoshch'yu penogeneriruyushchikh sistem so szhatym vozdukhom [Research foam parameters supplied by compressed air foam systems]. Chrezvychaynye situatsii: preduprezhdenie i likvidatsiya. 2011. No. 2 (30). Pp. 125-132. (rus)
Nawrotskiy O.D. Penogeneriruyushchie sistemy so szhatym vozdukhom – sredstvo pennogo pozharotusheniya novogo pokoleniya [Compressed air foam systems – tool a new generation of foam extinguishing]. Vestnik Komandno-inzhenernogo instituta MChS Respubliki Belarus'. 2012. No. 1 (15). Pp. 22-31. (rus)
Taylor R.G. Technical Report 98: Compressed Air Foam Systems in Limited Staffing Conditions. Morristown Fire Bureau. Morristown, New Jersey. 1998. Pp. 75-112. (eng)
Burdin A.M. Ustanovki pozharotusheniya s ispol'zovaniem kompressionnoy peny. Tekhnologicheskie osobennosti i preimushchestva [Extinguishing installations with compression foam. Technological features and advantages] Proc. XXVII Intern. scientific-practical. Conf., Dedicated to the 25th anniversary of the Russian Emergencies Ministry «Actual fire safety problems: materials». In 3 parts. Part 2. M.: VNIIPO, 2015. Pp. 274-286. (rus)
Makhakhey P.S. Vozmozhnost' ispol'zovaniya penogeneriruyushchikh sistem so szhatym vozdukhom dlya tusheniya pozharov v zdaniyakh povyshennoy etazhnosti i vysotnykh zdaniyakh [The possibility of using compressed air foam systems to extinguish fires in high-rise buildings] Proc. VI Intern. scientific-practical. Conf. «Emergency situations: prevention and elimination» In 2 parts. M-vo chrezv. situatsiy Resp. Belarus. Minsk, 2011. Part 2. Pp. 45-48. (rus)
Record height with sky CAFS. Rosenbauer, available at: http://rosenbauer.t3.world-direct.at/en/landing-pages-newsletter/2010-08-newsletter-rbi/record-height-with-sky-cafs (accessed: January 05, 2015). (eng)
Malashenko S.M. Ustroystvo vrezki v produktoprovod dlya podachi vozdushno-mekhanicheskoy ognetushashchey peny v goryashchiy rezervuar [Device of prick into product pipeline for supplying air-mechanical foam extinguishing on a burning tank]. Chrezvychaynye situatsii: preduprezhdenie i likvidatsiya. 2012. No. 2 (32). Pp. 148-156. (rus)
Korolchenko D. Analysis of extinguishing efficiency of low expansion foam produced from fluorine containing and hydrocarbonic foam compounds. Fire and emergencies: prevention, elimination. 2016. No. 3. Pp. 37-43. (rus)
William L., McLaughlin B.S. Properties of compressed air foam. Executive leadership. San Juan County Fire District No. 3. Friday Harbour. Washington. 2001. (eng)
Grady С., Lafferty R. How high can you pump wildland firefighting foam? Foam applications for wildland and urban fire management. Vol. 1. Issue 1. (eng)
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