Q2: A compounded impulse turbine has two rows of moving blades separated by a fixed row of blades. The steam leaves the nozzle at an angle of 20° with the direction of moti of blades. The blades exit angles are 1st moving 30°, fixed 22° and 2nd moving 30° If the adiabatic heat drop of nozzle is 186.2 kJ/kg with nozzle efficiency of 90%, calculate the blade velocity necessary, if the final velocity of steam is to be axial. Assume a loss o 15% in the relative velocity of all blade passages. Also obtain the blade efficiency. Draw the velocity diagram on scale.

Q2: A compounded impulse turbine has two rows of moving blades separated by a fixed row of blades. The steam leaves the nozzle at an angle of 20° with the direction of moti of blades. The blades exit angles are 1st moving 30°, fixed 22° and 2nd moving 30° If the adiabatic heat drop of nozzle is 186.2 kJ/kg with nozzle efficiency of 90%, calculate the blade velocity necessary, if the final velocity of steam is to be axial. Assume a loss o 15% in the relative velocity of all blade passages. Also obtain the blade efficiency. Draw the velocity diagram on scale.

Sustainable Energy

2nd Edition

ISBN:9781337551663

Author:DUNLAP, Richard A.

Publisher:DUNLAP, Richard A.

Chapter14: Ocean Thermal Energy Conversion And Ocean Salinity Gradient Energy

Section: Chapter Questions

Problem 5P

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