Gas turbines

Design/Project Engineering & Execution Phase

  1. Technical feasibility study, bid review, selection, specifications.
  2. Thermodynamic cycle performance studies (single cycle, dual cycle, combined cycle).
  3. Hot path design appraisals.
  4. Rotordynamics design appraisals (lateral, torsional).
  5. Model testing/Campbell diagram of blades, bladed-disc.
  6. Review of hardware design & construction drawings with OEM engineers/experts.
  7. Turbine assembly inspection and shop testing.
  8. High pressure turbine and power turbine matching studies (design and testing).
  9. Electro-mechanical-aerodynamics control system design review.
  10. Design and off-design performance.
  11. Refurbishment/Upgrade studies.
  12. Technical and economic studies for power augmentation:
    1. Steam injection.
    2. Inlet air chilling (evaporative coolers).
  13. Exhaust emission abatement (NOx, SOx, CO) to meet government regulations.
  14. Installation & commissioning matters and performance examination during warrantee period.

Operational Phase

  1. Reliability & Mission time (extension studies).
  2. Performance gap/stretch studies.
  3. Gas turbines malfunctions diagnosis and cure (vibration, noise, pulsation/acoustic, lube/seal, thermal signature, aerodynamic performance etc.).
  4. Best practices of gas turbine condition monitoring, operation and maintenance.
  5. Condition-based inspection & maintenance schemes and decisions (hot and cold paths components).
  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. Axial compressor fouling measurement schemes, evaluation and performance restoration.
  8. Axial compressor cleaning intervals, methodologies and practices (on/off-line).
  9. Actual air and fuel flow measurements and calculation.
  10. On/off-lines condition monitoring schemes and performance package development (power & efficiency estimation).
  11. Root cause investigation of distressed components, failure and restoration (nozzles, blades, bladed-disc, bearings, seals, combustion hardware, casing distortion, fuel nozzles).
  12. Rotor balancing (high speed & low speed).
  13. Intake and exhaust plenums performance monitoring and inspection.
  14. Cranking, governing and control systems problems.
  15. Thermal expansion of rotor-stator interaction during start up.
  16. Review/improvement of turbine supervisory instrumentation.
  17. Alignment (hot/cold) and intake/exhaust plenum forces & moments.
  18. Life cycle cost & remaining life assessment.