Pulsation Analysis Calculator

Reciprocating compressors create pulsating flow because gas is delivered in discrete pulses rather than continuously. Key concepts:

• Pulsation Frequency: f = (RPM × events per rev) / 60 Hz
• Acoustic Velocity: c = 68.1 × √(k × T / MW) ft/s
• Resonant Length: L = c / (2 × f) for half-wave resonance

Pulsation bottles dampen these pressure waves through volume expansion and acoustic impedance mismatch. API 618 specifies acceptable pulsation levels and when formal studies are required.

→ Read the full Pulsation Analysis Guide