The engagement covers detailed reliability modelling and availability assessment of the plant under islanded operating conditions.
Project Overview
Gas-based power plants supplying critical loads cannot afford unexpected downtime.
Even a single equipment failure can impact generation continuity.
This assignment focuses on:
- Evaluating overall plant reliability
- Assessing availability performance
- Identifying single points of failure
- Validating N+1 redundancy logic
The study targets achievement of a 99.9% reliability benchmark under defined operating scenarios.
Scope of Work – RAM Study
The awarded scope includes a complete RAM analysis using ETAP.
- Reliability Data Review
- Review of Single Line Diagram and GA drawings
- Collection of FOR, MTBF and MTTR for major equipment
- Validation of reliability inputs
- Reliability Block Diagram (RBD) Modelling
- Development of system-level RBD
- Representation of N+1 configuration
- Modelling of turbine, auxiliary, transformer, fuel and control dependencies
- Monte Carlo Simulation
- Statistical simulation of failure scenarios
- Plant availability calculation
- Design-day reliability assessment
- Sensitivity & Risk Assessment
- Impact analysis of failure rates
- Repair time evaluation
- Spare availability impact
- Identification of major downtime contributors
- Recommendations
- Engineering inputs to enhance system reliability
- Measures to reduce operational risk
- Actions to strengthen redundancy performance
Engineering Tools Used
- ETAP
- Excel
These tools enable detailed reliability modelling and statistical performance evaluation.
Technical Importance
RAM studies for NG power plants are essential to:
- Ensure uninterrupted power supply to critical facilities
- Validate redundancy strategy
- Minimise operational uncertainty
- Improve long-term availability
- Support informed investment and maintenance planning
Through this international reliability engineering assignment, Power Projects continues to deliver advanced analytical solutions for power generation infrastructure.