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Equation for STHE nozzles and pressure drop

Equation for STHE nozzles and pressure drop

Equation for STHE nozzles and pressure drop

(OP)
Dear members.

I use the following equations to calculate inlet and outlet nozzles' dia :
S(V)2        =   3000 max.
Where S - Density kg/m3; V - in M/S

And the following equations to calculate the pressure drop in the nozzle.

Inlet nozzle    =   rho R(V)^2/9266
Outlet nozzle    =   1.25 rho R(V)^2/9266

Where (rho) in lr / (Ft)^3
V in Ft / sec.

Are the above equations acceptable?



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