Methodological base was developed for assessing the quality of firefighter - saviour combat clothing for use in the Arctic zone. It consists of a mathematical model for calculating the thermal state of special combat clothing in the «man — firefighter's combat clothing — working environment» system and a chamber climate test methodology with the participation of testers-volunteers. The results of some calculations of the firefighter's combat clothing thermodynamic state under the climatic factors exposure (negative values of the ambient temperature, wind load), and the fire thermal factors exposure are presented. Calculations were made based on the time and tasks performed, on the basis of actual working conditions of the firefighter. According to the calculation results we can conclude that in the considered range of variation of the environmental parameters of the working environment in the climatic conditions of the Arctic zone, the time of protective action of a multilayer stack of materials and tissues of the firefighter's combat clothing is determined by the time of reaching of the skin surface limit temperature cooling in the region of the unheated structural elements. In this case the heat flux is not a determining factor.
Verification of the model is carried out by comparing the results of experimental measurements and data obtained by calculation.
The climate chamber test methodology includes registration in the process of tests of the firefighter's combat clothing under-suit space thermodynamic parameters and the tester physiological parameters using both special sensors and displaying the results on a computer multiplier in real time mode. In addition, a visual assessment of the firefighter's combat clothing technical condition at the end of the tests is carried out.
Based on the results of the performed studies of the specific firefighter's combat clothing samples it can be concluded that the developed methodological base allows to perform the objective assessment of the Arctic version of the firefighter's combat clothing according to the application indicators that determine the quality of the product, and can be used to assess the quality of other personal protective equipment of a firefighter.
- Aleshkov M.V., Bezborodko M.D., Olkhovskiy I.A., Dvoenko O.V. History of the development of technical means to fight fire, adapted for work at low temperatures. Pozharovzryvobezopasnost = Fire and Explosion Safety. 2016. Vol. 25. № 11. pp. 77–83. (In Russ.).
- Dagirov Sh.Sh., Aleshkov M.V., Ishhenko A.D., Roenko V.V. Prospects for the application of certain technical achievements for the prevention and elimination of emergencies in the Arctic Region. Materialy Mezhdunar. konf. po problemam preduprezhdeniya i likvidatsii chrezvychaynykh situatsiy v Arktike «Bezopasnyy gorod v Arktike» (Materials of the International conference on the problems of prevention and elimination of emergencies in the Arctic «Safe city in the Arctic»). Мoscow: FGBU VNII GO ChS (FTs), 2016. pp. 38–41. (In Russ.).
- Problems of prevention and elimination of emergency situations in the Arctic, including the issues of the specialized personnel training for work in the northern conditions: digest of the international conferences. Мoscow, 2014. 160 p. (In Russ.).
- Chubarova Z.S. Methods for assessing the quality of special clothing. Мoscow: Legprombytizdat, 1988. 161 p. (In Russ.).
- Loginov V.I. Design and comprehensive quality assessment of special protective clothing for the firefighters: abstract of the thesis... Doctor of Technical Sciences. Мoscow, 2010. 48 p. (In Russ.).
- Nekrasov A.K., Loginov V.I., Arkhireev K.E., Mikhailov E.S. Mathematical modeling of complex non-stationary heat exchange in multilayered heat-shielding designs with air spaces. Pozharnaja bezopasnost = Fire Safety. 2016. № 2. pp. 37–42. (In Russ.).
- Nekrasov A.K., Loginov V.I., Arkhireev K.E. Prediction of temperature and protective period for fire fighter‘s combat clothing against heat factors of fire in arctic climate. Pozharnaja bezopasnost = Fire Safety. 2018. № 3. pp. 86–90. (In Russ.).
- Nekrasov A.K., Loginov V.I., Arkhireev K.E. Numerical modeling of temperature profiles in multilayer packages of materials and fabrics for special heat-resistant fire fighter’s uniform. Pozharnaja bezopasnost = Fire Safety. 2018. № 1. pp. 70–75. (In Russ.).
- Burton A., Edholm O. Man in a cold environment. Мoscow: Inostrannaya literatura, 1957. 333 p. (In Russ.).
- Stoll A.M., Greene L.C. Relationship between pain and tissue damage due to thermal radiation. Journal of Applied Physiology. 1959. Vol. 14. № 3. pp. 373–382.
- Enaleev R.Sh., Kachalkin W.A., Telyakov E.Sh., Chistov Yu.S. Prediction of human damage under dynamic heating. Pozharovzryvobezopasnost = Fire and Explosion Safety. 2012. № 5. pp. 48–53. (In Russ.).
- Holopainen R. A human thermal model for improved thermal comfort: doctoral dissertation. Available at: https://www.vttresearch.com/sites/default/files/pdf/science/2012/S23.pdf (accessed: May 22, 2020).
- Kutateladze S.S. Heat transfer and hydrodynamic resistance: reference book. Мoscow: Energoatomizdat, 1990. 367 p. (In Russ.).
- Dolin P.A. Safety Handbook. 6-e izd. Мoscow: Energoatomizdat, 1985. 611 p. (In Russ.).
- Makhaniok A.A., Levin M.L., Dragun V.L. Thermophysical Aspects of Total Gas Cryotherapy. Izvestiya Natsionalnoy akademii nauk Belarusi. Ser. Fiz.-tekhn. nauk = Proceedings of the National Academy of Science of Belarus. Physical-technical series. 2011. № 3. pp. 59–71. (In Russ.).