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Microidraulica Industriale

Entrained Air

The effect of entrained air on bulk modulus in hydrocarbon and other fluids for different working pressures.

To simplify the calculations of thermal problems with entrained air, these curves show the average effect on a 230,000 psi bulk modulus for pressure points fairly close together. If a wide change in pressure is encountered in a problem, it would be more accurate to break the changes down into two or more steps, depending on the accuracy desired.

An accurate one step formula for this relationship follows:

(Note that pressure is in units of psia.)

The effect of entrained air on bulk modulus in hydrocarbon and other fluids for different working pressures.

To simplify the calculations of thermal problems with entrained air, these curves show the average effect on a 230,000 psi bulk modulus for pressure points fairly close together. If a wide change in pressure is encountered in a problem, it would be more accurate to break the changes down into two or more steps, depending on the accuracy desired.

An accurate one step formula for this relationship follows:

(Note that pressure is in units of psia.)