Mohammed Alfazari

Experience

• 

  Petroleum Development Oman

  Oct 2022 - Aug 2023

  Engineering Rotating Equpment

  Eidaad Trainee Learning Outcomes (10 months)1. Complete Attendance of 6B Gas Turbine Major Overhaul in Nimr Power PlantMechanical Works Done on Gas Turbine F6B:Air Inlet System, Cooling and Sealing System, Starting Motor, Accessory Gearbox, Load Gearbox, Lube Oil System, Exhaust System, Generator, Compressor and IGVs, Combustion System, Turbine Section.2. Gas Turbine Performance Monitoring through PI-VisionBuilding Gas Turbine Performance Monitoring: Enhance operation and performance, Cost avoidanceMonitoring Based on ASME PTC22: Calculations for heat rate, output power, exhaust energy, overall efficiency and Usage of correction curves3. Effectiveness on Gas Turbine PerformanceAmbient Temperature: - Natural and manmade air breathing systems use ambient air.- Affects internal combustion engines, gas turbines, and compressorsAmbient Pressure:- Site-dependent parameter, changes with elevation- Reduced air density and ambient pressure with increased elevation- Results in reduced mass flow rate, fuel rate, and power output (approx. 3.5% reduction per 1000 feet/305 meters of elevation)Humidity:- Humid air has less density than dry air, Reduced amount of dry air mass entering the gas turbine affects performancePressure Ratio:- Ratio between exit pressure and inlet pressure, Increased efficiency with higher pressure ratio, Efficiency also increases with higher heat capacity ratio (gamma).Turbine Inlet Temperature (T3): - Critical parameter influencing gas turbine performance, Higher turbine inlet temperature improves turbine work and network outputs, Enhances power output and thermal efficiencyComponents Efficiency: - Individual components such as compressor, turbine, combustion chamber, casing, and blades are crucial- Compressor and turbine are the most critical components for power output and efficiency Show less