Turbines Course

Lesson 1 • Basic Turbine Components

Identifies rotors, stators, nozzles, blades, and casings. Establishes component vocabulary used throughout the course.

Lesson 2 • Energy Conversion Principles

Covers thermodynamic laws governing energy conversion in turbines. Connects fluid enthalpy drop to mechanical shaft work output.

Lesson 3 • Turbine Classification and Types

Distinguishes impulse, reaction, axial, and radial turbine configurations. Provides context for selecting turbine type by application.

Lesson 4 • Industry Applications Overview

Maps turbine use across power generation, aviation, marine, and industrial sectors. Motivates subsequent technical depth with real-world context.

Lesson 1 • Thermodynamic Cycles for Turbines

Analyses Rankine, Brayton, and Kaplan cycle structures. Connects cycle efficiency to turbine inlet and outlet conditions.

Lesson 2 • Compressible Flow in Gas Turbines

Introduces Mach number, choked flow, and shock effects in gas turbine passages. Differentiates subsonic and supersonic nozzle behaviour.

Lesson 3 • Boundary Layers and Losses

Examines friction, separation, and secondary flow losses within blade passages. Quantifies loss coefficients used in stage efficiency models.

Lesson 4 • Fluid Flow Fundamentals

Applies continuity, Bernoulli, and momentum equations to turbine flow paths. Establishes velocity triangle methodology for stage analysis.

Lesson 1 • Steam Turbine Stage Design

Covers impulse and reaction stage geometry, degree of reaction, and blade loading. Links design parameters to stage efficiency and output.

Lesson 2 • Governing and Control Systems

Describes throttle, nozzle, and bypass governing methods for load control. Connects governor response to grid frequency regulation.

Lesson 3 • Steam Path and Casing Design

Examines high-pressure, intermediate-pressure, and low-pressure casing configurations. Addresses steam path sealing and leakage control strategies.

Lesson 4 • Steam Quality and Moisture Effects

Analyses wet steam erosion, moisture separation, and reheat benefits. Quantifies moisture loss penalty on LP stage efficiency.

Lesson 1 • Gas Turbine Performance Parameters

Defines specific work, thermal efficiency, and specific fuel consumption metrics. Applies off-design corrections for ambient temperature and altitude.

Lesson 2 • Compressor and Turbine Matching

Analyses compressor maps, surge lines, and turbine swallowing capacity. Establishes operating line placement for stable engine operation.

Lesson 3 • Gas Turbine Operational Limits

Identifies turbine inlet temperature, speed, and vibration operating limits. Describes protective trip logic and load rejection response.

Lesson 4 • Turbine Blade Cooling Techniques

Examines internal convection, film cooling, and transpiration methods. Quantifies cooling air penalty on cycle thermal efficiency.

Lesson 1 • Pumped Storage and Grid Services

Describes reversible pump-turbine operation and grid frequency regulation roles. Quantifies round-trip efficiency and response time for grid balancing.

Lesson 2 • Hydraulic Turbine Types

Compares Pelton, Francis, Kaplan, and cross-flow turbine designs. Links specific speed to appropriate turbine selection for a given site.

Lesson 3 • Cavitation in Hydraulic Turbines

Explains cavitation inception, damage mechanisms, and sigma criterion. Guides draft tube elevation and runner material selection to mitigate cavitation.

Lesson 4 • Runner and Guide Vane Design

Details runner blade profiling, guide vane angle adjustment, and wicket gate control. Connects vane angle to turbine efficiency across the load range.

Lesson 1 • Rotor Dynamics and Vibration

Models critical speeds, unbalance response, and blade resonance using Campbell diagrams. Guides balancing procedures and resonance avoidance strategies.

Lesson 2 • Creep and Stress Rupture

Quantifies creep deformation rates and Larson-Miller parameter for life prediction. Applies stress rupture data to blade and disc design margins.

Lesson 3 • Corrosion and Oxidation Control

Identifies hot corrosion, sulfidation, and oxidation attack mechanisms. Prescribes protective coatings and fuel quality controls to extend component life.

Lesson 4 • Fatigue and Fracture Mechanics

Distinguishes high-cycle and low-cycle fatigue failure modes in rotating components. Uses fracture mechanics to set inspection intervals and retirement limits.

Lesson 1 • Blade and Vane Inspection

Evaluates blade tip clearance, erosion, cracking, and coating degradation. Documents findings using standardised condition rating systems.

Lesson 2 • Bearing and Seal Maintenance

Inspects journal bearings, thrust bearings, and labyrinth seals for wear and clearance. Restores specified clearances to prevent vibration and leakage.

Lesson 3 • Repair, Refurbishment, and Life Extension

Covers weld repair, thermal spray, and replacement criteria for turbine components. Applies fitness-for-service assessment to extend component operational life.

Lesson 4 • Non-Destructive Testing Methods

Applies ultrasonic, dye penetrant, magnetic particle, and eddy current techniques. Selects appropriate method based on defect type and component geometry.

Lesson 1 • Upgrade and Retrofit Technologies

Evaluates blade profile upgrades, seal improvements, and digital retrofit packages. Quantifies payback period and availability improvement for each upgrade option.

Lesson 2 • Reliability and Availability Management

Tracks forced outage rates, equivalent availability factors, and mean time between failures. Applies reliability-centred maintenance to reduce unplanned downtime.

Lesson 3 • Advanced Control and Optimization

Implements model-based control, inlet conditioning, and variable geometry adjustments. Optimises dispatch strategy across varying load and ambient conditions.

Lesson 4 • Performance Testing and Benchmarking

Executes heat rate tests, flow measurements, and efficiency calculations per accepted standards. Benchmarks results against design and historical baselines.