Hany Moustapha.pdf _top_ - Axial And Radial Turbines By

| Feature | Axial Turbine | Radial Turbine | | :--- | :--- | :--- | | | Axial (parallel to shaft) | Centripetal (inward radial) | | Efficiency | Very high (90-94% for large units) | Moderate to high (85-90%) | | Gas Path Area | Annular (large area possible) | Single stage, smaller throat area | | Multi-staging | Easy (common for high pressure ratios) | Difficult (usually single stage) | | Manufacturing Cost | High (complex 3D airfoils, often cast) | Lower (can be cast or machined from solid) | | Ruggedness | Moderate (long slender blades) | Very high (short, thick blades) | | Typical Application | Jet engines, power plant turbines | Turbochargers, APUs, micro-turbines |