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HOSE FRICTION LOSS [4 records]

Record 1 2014-11-19

English

Subject field(s)
  • Fire-Fighting Techniques
  • Fluid Mechanics and Hydraulics (Physics)
OBS

Usually caused by too much pressure-too little pressure, damaged tip, air in hose, twists and knots in lines and friction loss.

French

Domaine(s)
  • Manœuvres d'intervention (incendies)
  • Mécanique des fluides et hydraulique (Physique)
CONT

incident : le jet est irrégulier et se divise.

Spanish

Save record 1

Record 2 2013-01-31

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Fire-Fighting and Rescue Equipment
CONT

Friction loss coefficients are derived from the diameter of the hose and friction loss over a known length of hose for a given water flow rate.

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Matériel de secours et de lutte (incendies)

Spanish

Save record 2

Record 3 2005-05-10

English

Subject field(s)
  • Fluid Mechanics and Hydraulics (Physics)
  • Fire-Fighting and Rescue Equipment
DEF

The reduction in efficiency of a fire hose (the amount of water pressure lost) due to the resistance between the inside wall of the hose and the water flowing through the hose.

French

Domaine(s)
  • Mécanique des fluides et hydraulique (Physique)
  • Matériel de secours et de lutte (incendies)
DEF

Différence entre la pression de l'eau à son point de départ et à son point d'arrivée causée principalement par la friction de l'eau dans les tuyaux et par l'élévation.

Spanish

Save record 3

Record 4 1993-02-22

English

Subject field(s)
  • Extinguishing Agents
OBS

Fire Streams. ...The primary purpose of fire department pumpers it to move water with adequate pressure from a source to the fire.

OBS

Certain high molecular-weight polymers injected into a pump or hose line have the capacity of reducing friction.... Polymer additives reduce friction loss by as much as 50 percent. This permits flowing greater amounts of water in smaller diameter hose.

French

Domaine(s)
  • Agents extincteurs
OBS

Agent permettant d'obtenir un meilleur jet. Voir fiche «fire stream» dans Termium.

Spanish

Save record 4

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