A reaction turbine used 9,000 kg of steam per hour. At one point in the turbine, the blades are 20 mm high and the discharge angle of both fixed and moving blade is 20°. The steam leaves the fixed blade at a pressure of 0.32 N/mm² with a dryness fraction of 0.95, and a velocity of 120 m/s. Assume the ratio of axial velocity of flow to blade velocity as 0.70 at entry to and 0.76 at exit from the moving blades. Assuming a tip leakage of 6% of the total steam, determine the following: 1. Speed of the turbine in Revolutions per minute. a. 1252 b. 894 c.2453 d.3434 e.1752 2. Power developed in kilowatts. a.66.76 b.47.69 c.24.33 d.34.06 e.93.47

A reaction turbine used 9,000 kg of steam per hour. At one point in the turbine, the blades are 20 mm high and the discharge angle of both fixed and moving blade is 20°. The steam leaves the fixed blade at a pressure of 0.32 N/mm² with a dryness fraction of 0.95, and a velocity of 120 m/s. Assume the ratio of axial velocity of flow to blade velocity as 0.70 at entry to and 0.76 at exit from the moving blades. Assuming a tip leakage of 6% of the total steam, determine the following: 1. Speed of the turbine in Revolutions per minute. a. 1252 b. 894 c.2453 d.3434 e.1752 2. Power developed in kilowatts. a.66.76 b.47.69 c.24.33 d.34.06 e.93.47

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter6: Forced Convection Over Exterior Surfaces

Section: Chapter Questions

Problem 6.16P

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