Determinação dos coeficiente de perda de carga aplicáveis a válvulas de globo parcialmente abertas
Default

Input data

Diameter

Opening section

Output data

k applicable to h = kU²/2g

kQ applicable to h = kQ.Q²

Description

Find the head loss coefficients for partially globe valves.

Given the diameter and the opening relation of a globe valve, calculates the head loss coefficients , for the expressions:

  • For k applicable to:
    hf=kU22g hf = \frac{k \cdot U^2}{2\cdot g}
  • For kQk_Q applicable to:
    hf=kQQ2 ℎf = k_Q\cdot Q^2

Globe valve

References

  • Miller, Donald S. Internal flow systems. BHRA Fluid Engineers, 1978.