Consideration of Thermodynamic Processes Formation of Compressed-Air Foam in Design Compressed Air Foam Systems

Abstract:

The main problem with creating compressed air systems is to properly regulate the flow of water and the flow of air that is fed into the mixing chamber so as to continuously provide a foam that must have adequate fire-fighting properties and remain stable over time. The process of obtaining compression foam is a thermodynamic process, which depending on the specified technological factors can be both isothermal and adiabatic. The nature of the process determines both the geometric and physical properties of the foam, and its possible fluctuations can lead to changes in the physical characteristics of the foam. The work provides recommendations for determining the type of thermodynamic process, which makes it possible to improve the accuracy when creating mathematical models of mobile plants for the production of CAF.

• Periodical: Materials Science Forum (Volume 1006)
• Pages: 11-18
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1006.11
• Online since: August 2020
• Authors: Anatolii Kodrik*, Oleksandr Titenko, Stanislav Vinogradov, Stanislav Shakhov
• Keywords: Compressed Air Foam Systems, Design, Fire Fighting, Mathematical Modeling, Thermodynamic Process

References

[1] S.M. Shakhov, A.I. Kodryk, O.F. Nikulin, O.M. Titenko, S.A. Vinogradov, I.G. Stylyk Determination of the dependence of compression foam characteristics, Scientific Bulletin of UNFU. 29/5 (2019) 103–106.

DOI: 10.15421/40290520

[2] G. N. Abramovich Applied gas dynamics, (1960).

[3] Wiebke Drenckman-Andreatta Acoustic characterization of liquid foams with an impedance tube, The European Physical Journal E. (2013).

[4] R. Dong-Ho, L. Jang-Won, K. Seonwoong Class B Fire-Extinguishing Performance Evaluation of a Compressed Air Foam System at Differen Air-to-Aqueous Foam Solution Mixing Ratios, Applied Science. 6/191 (2016) 2–12.

DOI: 10.3390/app6070191

[5] G. Crampton, A. Kim Сomprasion of the Fire Suppression Performance of Compressed-Air Foam with Air Aspirated and Unexpanded Foam Water Sopution, Research Report. 147 (2007) 1–25.

[6] X. Wang, Y. Liao, l. Lin Experimental study on fire extinguishing with a newly prepared multi-component compressed air foam, Chinese Science Bulletin. 54/3 (2009) 492–496.

DOI: 10.1007/s11434-008-0571-3

[7] C. Jing-Yuan, X. Mao. Experimental Research of Integrated Compressed Air Foam System of Fixed (ICAF) for Liquid Fuel, Procedia Engineering. 71 (2014), 44–56.

DOI: 10.1016/j.proeng.2014.04.007

[8] A. Kamlyuk, O. Navrotskiy, A. Grachulin Tusheniya pozharov penogeneriryuschimi sistemami so szhatyim vozduhom, Vestnik Universiteta grazhdanskoy zaschityi MChS Belarusi. 1/1 (2017) 44-53.

[9] V. D. Fadyaev Primenenie kompressionnoy penyi v nasosno-rukavnyih sistemah pri tushenii pozharov elektrooborudovaniya pod napryazhenim, Dis. kandidata teh. nauk: 05.26.03, (2017).

[10] L. William, J. San. Properties of compressed air foam, County Fire District, (2001).

[11] С. Grady, R. Lafferty How high can you pump wildland firefighting foam, Foam applications for wildland and urban fire management, (2005).

[12] D. Feng Analysis on Influencing Factors of the Gas-liquid Mixing Effect of Compressed Air Foam Systems, Procedia Engineering, 52 (2013) 105–111.

DOI: 10.1016/j.proeng.2013.02.113

[13] P. Dhrupad Experimental study of pressure drop an bubble size in a laboratory scale compressed air foam generation system, 2017, 135 s.

[14] Yu.A. Abramov, V. Rosoha, E. Shapovalova Modeling of processes in fire barrels, 2001, 195 s.

[15] A. Semko, M. Beskrovnaya, S. Vinogradov, I. Hritsina, N. Yagudina The usage of high speed impulse liquid jets for putting out gas blowouts, Journal of Theoretical and Applied Mechanics, 3 (2014) 655–664.

[16] J. Mawhinney, G. Back Handbook of fire protection engineering, SFPE Handbook of fire protection engineering, 2016, 645 s.

DOI: 10.1007/978-1-4939-2565-0_46

[17] L. G. Lojciansky Fluid and Gas Mechanics, (1950).