A Gas Turbine has a maximum output power of 150 MW at a speed of 2000...

Transcribed Image Text:

A Gas Turbine has a maximum output power of 150 MW at a speed of 2000 rpm. A shaft of length 5 m made of EN8 steel (properties given in the table below) is to transfer torque from the turbine to electricity generator. Using a design stress for EN8 Shafting as 480 MPa. You are to: i. Calculate the appropriate diameter (in mm) of a solid shaft, so that it will not fail due to torsion. (6 marks) ii. Calculate the angle of twist (in degrees) for the shaft during maximum output (4 marks) EN8 Shafting Steel Ultimate tensile stress Ultimate shear stress Tensile Yield stress Shear Yield stress Young's modulus Modulus of rigidity 850 MPa 490 MPa 530 MPa 300 MPal 210 GPa 200 GPa A Gas Turbine has a maximum output power of 150 MW at a speed of 2000 rpm. A shaft of length 5 m made of EN8 steel (properties given in the table below) is to transfer torque from the turbine to electricity generator. Using a design stress for EN8 Shafting as 480 MPa. You are to: i. Calculate the appropriate diameter (in mm) of a solid shaft, so that it will not fail due to torsion. (6 marks) ii. Calculate the angle of twist (in degrees) for the shaft during maximum output (4 marks) EN8 Shafting Steel Ultimate tensile stress Ultimate shear stress Tensile Yield stress Shear Yield stress Young's modulus Modulus of rigidity 850 MPa 490 MPa 530 MPa 300 MPal 210 GPa 200 GPa

Answer rating: 100% (QA)

1 Calculating the Diameter of the Solid Shaft To ensure the shaft doesnt fail due to torsionwe need ... View the full answer