Hydraulic Accumulator - Gas Pre-charge Sizing
Accumulator pre-charge pressure and required volume - critical for surge suppression in deck-machinery hydraulic systems.
Pre-charge p_0
135.0bar
Accumulator size
11.3L
Formula, assumptions, and limits
N₂ pre-charge 90 % of minimum working pressure. Polytropic exponent n = 1.0 slow / 1.4 rapid cycling. Size accumulator 20–30 % above calculated for pressure ripple.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Gas pre-charge pressure | bar | maker guideline | |
| Min / max working pressure | bar | system design |