Hydraulic resistance of pressure fire hoses

Authors

  • Oleg D. Navrotskiy State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, Mashinostroiteley str., 25 https://orcid.org/0000-0002-4137-2519
  • Ruslan N. Mikhalev State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, Mashinostroiteley str., 25 https://orcid.org/0000-0002-3719-2646
  • Aleksandr V. Grachulin State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, Mashinostroiteley str., 25 https://orcid.org/0000-0003-3832-8258
  • Vitaliy N. Ryabtsev State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, Mashinostroiteley str., 25 https://orcid.org/0000-0002-2830-591X
  • State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, Mashinostroiteley str., 25 https://orcid.org/0000-0001-9860-0167

DOI:

https://doi.org/10.33408/2519-237X.2022.6-1.74

Keywords:

fire tactics, pressure hoses, pump and hose systems

Abstract

Purpose. Determination of the actual values of the hydraulic resistance of pressure fire hoses based on experimental and theoretical studies for use in the calculation of pump-hose systems.

Methods. To achieve this goal, an experimental method was used, based on determining the pressure loss (pressure) in the hose line by establishing the pressure difference at the beginning and end of the hose line, followed by calculating the resistivity of a fire hose running meter, and then multiplying the resistance of a fire hose running meter sleeves to its length.

Findings. A comparative analysis of the hydraulic resistance values of pressure fire hoses with a diameter of 77, 66, 51 mm was performed. It has been found that currently used values may differ significantly depending on the source of information. A technique for performing measurements in the course of research on pressure losses in pump-hose systems has been developed. Experimental studies have been carried out and the main indicators of the hydraulic resistance of pressure fire hoses with a diameter of 77, 66, 51 mm have been determined.

Application field of research. Fire tactics, calculation of pumping and hose systems.

Author Biographies

Oleg D. Navrotskiy, State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, Mashinostroiteley str., 25

Chair of Automatic System Security, Associate Professor; PhD in Technical Sciences, Associate Professor

Ruslan N. Mikhalev, State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, Mashinostroiteley str., 25

Technosphere Safety Faculty, Deputy Head of the Faculty

Aleksandr V. Grachulin, State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, Mashinostroiteley str., 25

Chair of Automatic System Security, Senior Lecturer; PhD in Technical Sciences, Associate Professor

Vitaliy N. Ryabtsev, State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, Mashinostroiteley str., 25

Chair of Automatic System Security, Head of Chair; PhD in Technical Sciences, Associate Professor

, State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, Mashinostroiteley str., 25

Faculty of Emergency Prevention and Elimination, cadet

References

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Published

2022-02-25

How to Cite

Navrotskiy О. Д., Mikhalev Р. Н., Grachulin А. В., Ryabtsev В. Н. and Василий Ефимович (2022) “Hydraulic resistance of pressure fire hoses”, Journal of Civil Protection, 6(1), pp. 74–83. doi: 10.33408/2519-237X.2022.6-1.74.

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Section

Fire and industrial safety (technical sciences)

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