The erosional velocity for compressible fluids is expressed as:
Where:
Erosional velocity Ve = Ft / sec;
p = gas density, lbm / ft;
And C is a constant-defined as 75 <150. c = "100."> Donde:
Erosional velocity Ve = Ft / sec;
G = gas gravity, adimencional;
P = minimum pressure in the pipe, psia;
Z = compressibility factor in the pressure, specific temperature, dimensionless
T = temperature of gas flow ° R;
R = 10.73 (FT3 * psia / lb mole * ° R).
The recommended values for the velocity of gas main transmission lines is usually 40% to 50% of the erosional velocity (10-13 Ejm value d m / sec or 33-43 ft / sec is an acceptable value for design purposes .) This value could be between 15-17 m / sec for non-core or side pipes.
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