Formula for Nozzle Reaction?
The Nozzle Reaction Is Found to Be: R = Ρ Q 2 / A2, Where A2 Is the Discharge Diameter, Q Is the Volumetric Flow Rate, R Is the Magnitude of the Nozzle...
The nozzle reaction is found to be: R = ρ Q 2 / A2 , where A2 is the discharge diameter, Q is the volumetric flow rate, R is the magnitude of the nozzle reaction, and r is the water density. This equation shows that the reaction is proportional to the flow rate squared, divided by the nozzle diameter.
How much nozzle reaction can a firefighter handle?
The author found a tolerable nozzle reaction, through experience as a hose and nozzle instructor, to be right in line with about 70 pounds for a “single firefighter” line. Single firefighter is in quotes because a minimum of two firefighters should be assigned to a 1¾-inch attack handline.
How do you calculate flow rate of a nozzle?
- Any nozzle will produce certain flow rate at a given pressure differential. ...
- The flow rate for a given nozzle can be calculate by the following formula.
- Q= Flow rate.
- K = K factor for nozzle.
- P = Pressure differential at the nozzle.
- n = Is a constant that depends upon the spray pattern type.
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