Flow induced vibrations in a gas compression plant

Fretting issues on conrod bearings
Country:
Libya
Application:
Gas compression plant
Compressor type:
Centrifugal compressor
Service
Gas booster
Power:
20 MW
Pressure:
75 bara
Flow induced vibrations in a gas compression plant
Problem
  • Determine the source of piping vibrations
  • Apply effective modifications to reduce them below the recommended values

Solution
  • Identification of a source of flow induced vibrations in a Tee junction
  • Flow modelling to characterize the source of vibrations and the pulsation phenomenon
  • Piping FEM modelling to determine mechanical natural frequencies
  • Multiple solutions identified to find the best compromise between vibration reduction and cost of modifications