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K-factor (fire protection)
・ K-factor (marketing)
・ K-factor (telecommunications)
・ K-finite
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K-factor (fire protection) : ウィキペディア英語版
K-factor (fire protection)

In fire protection engineering, the K-factor formula is used to calculate the discharge rate from a nozzle. Nozzles can be fire sprinklers or water mist nozzles, hose reel nozzles, water monitors and deluge fire system nozzles.
K-Factors calculated in Metric units;
The flow rate of a nozzle is given by q = K\sqrt p, where ''q'' is the flow rate in litres per minute (LPM), ''p'' is the pressure at the nozzle in Bar and ''K'' is the ''K-factor'' is given in units of LPM/\sqrt\text.
K-Factors have also been calculated and published in English units of PSI and GPM.
Care should be exercised not to intermix K-factors from Metric and English units as the resulting factors are not equivalent or interchangeable.
==References==


Sources using English K-Factor for fire protection;
Engineermate; http://engineermate.com/Hydraulics/FlowTest/KfactorConvert.htm
Building codes; http://buildingcoderesourcelibrary.com/
Sprinkler manufacturer who lists both types of K-Factor; http://www.hdfire.com/products/spray_nozzels/medium_velocity_spray_nozzle.htm


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「K-factor (fire protection)」の詳細全文を読む



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