Question

In an impulse turbine the nozzles are inclined at 18º to the wheel tangent. Steam leaves the nozzles at 800 m/s with a flow rate of 10 kg/s. The blade speed is 280 m/s. The relative velocity of steam as it flows over the blades is reduced by 10% due to friction. Determine: (a) The suitable inlet and outlet angles for the blades to ensure the axial thrust to be zero (b) Work done (c) Power developed (d) Diagram efficiency.

Name: In an impulse turbine the nozzles are inclined at 18º to the wheel tangent. Steam leaves the nozzles at 800 m/s with a flow rate of 10 kg/s. The blade speed is 280 m/s. The relative velocity of steam as it flows over the blades is reduced by 10% due to friction. Determine: (a) The suitable inlet and outlet angles for the blades to ensure the axial thrust to be zero (b) Work done (c) Power developed (d) Diagram efficiency.
Uploaded: 2023-08-02T00:35:46-08:00
Duration: 2 min 24 s
Channel: Adi S

          In an impulse turbine the nozzles are inclined at 18º to the wheel tangent. Steam leaves the nozzles at 800 m/s with a flow rate of 10 kg/s. The blade speed is 280 m/s. The relative velocity of steam as it flows over the blades is reduced by 10% due to friction. Determine: (a) The suitable inlet and outlet angles for the blades to ensure the axial thrust to be zero (b) Work done (c) Power developed (d) Diagram efficiency.

In an impulse turbine the nozzles are inclined at 18º to the wheel tangent. Steam leaves the nozzles at 800 m/s with a flow rate of 10 kg/s. The blade speed is 280 m/s. The relative velocity of steam as it flows over the blades is reduced by 10% due to friction. Determine: (a) The suitable inlet and outlet angles for the blades to ensure the axial thrust to be zero (b) Work done (c) Power developed (d) Diagram efficiency.

Added by Paul V.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Adi S

08/02/2023

Step 1

Given that the steam leaves the nozzles at 800 m/s and the flow rate is 10 kg/s, we can calculate the absolute velocity using the formula: Absolute velocity = Flow rate / Area Absolute velocity = 10 kg/s / (Area of nozzle) Since the area of the nozzle is not Show more…

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In an impulse turbine, the nozzles are inclined at 18° to the wheel tangent. Steam leaves the nozzles at 800 m/s with a flow rate of 10 kg/s. The blade speed is 280 m/s. The relative velocity of steam as it flows over the blades is reduced by 10% due to friction. Determine: (a) The suitable inlet and outlet angles for the blades to ensure the axial thrust to be zero (b) Work done (c) Power developed (d) Diagram efficiency.