Centrifugal and axial flow compressors

Design/Project Engineering & Execution Phase

  1. Technical feasibility study, bid review, selection, specifications.
  2. Aerothermodynamics design appraisals.
  3. Rotordynamics design appraisals (lateral, torsional).
  4. Model testing/Campbell diagram of impellers, blades, bladed-disc.
  5. Review of hardware design & construction drawings with OEM engineers/experts.
  6. Compressor assembly inspection and shop testing.
  7. Electro-mechanical-aerodynamics control system design review.
  8. Design and off-design performance.
  9. Refurbishment/Upgrade studies.
  10. Installation & commissioning matters and performance examination during warrantee period.

Operational Phase

  1. Reliability & Mission time (extension studies).
  2. Performance gap/stretch studies.
  3. Compressors malfunctions diagnosis and cure (vibration, noise, pulsation/acoustic, lube/seal oil, thermal signature, aerodynamic performance).
  4. Best practices of centrifugal and axial compressors condition monitoring, operation and maintenance.
  5. Condition-based inspection & maintenance schemes and decisions.
  6. Pro-active performance appraisals of key parameters during steady state/transient modes to capture faults at embryonic stage before they turn in to full-scale problem that may lead to un-plan interruption in production.
  7. Estimation of system resistance curve.
  8. In-situ operating point on compressor map (clean and fouled condition).
  9. Recycle and surge point optimization for parallel and series operation (as applicable).
  10. Centrifugal and axial compressor fouling measurement schemes, evaluation and performance restoration.
  11. Compressor cleaning intervals, methodologies and practices (on/off-line).
  12. Actual flow measurements and calculation.
  13. On/off-lines condition monitoring schemes and performance package development (running power & efficiency estimation).
  14. Root cause investigation of distressed components, failure and restoration (impellers, blades, bladed-disc, bearings, seals, casing distortion).
  15. Rotor balancing (high speed & low speed).
  16. Control systems problems.
  17. Review/improvement of compressor supervisory instrumentation.
  18. Alignment (hot/cold) and piping forces & moments.
  19. Life cycle cost & remaining life assessment.