Hydraulic Accumulator - Gas Pre-charge Sizing

Contents

Accumulator pre-charge pressure and required volume - critical for surge suppression in deck-machinery hydraulic systems.

Formula

$$ V_0 = \frac{\Delta V}{\left(\frac{p_0}{p_1}\right)^{1/n} - \left(\frac{p_0}{p_2}\right)^{1/n}} $$

Symbol	Meaning	Unit	Source
$p_0$	Gas pre-charge pressure	bar	maker guideline
$p_1, p_2$	Min / max working pressure	bar	system design