205kg/hr of dry saturated steam at 0.7MPA. The exhaust pressure is(2.48N, 130.8kJ/kg)The nozzlès of a simple De-laval turbine are supplies with60kPa; nozzle angle is 20°, nozzle efficiency 80%; blade outletangle 30; blade speed 183m/sec and blade velocity-coefficient0.85. The power lost by fan action and disc friction is 1.5kW.Neglecting bearing friction and assuming that all above lore-appear| as heat, find (1) The net power at the shaft; (2) The quality ofsteam in the exhaust pipe where the speed is small; and (3) thequality of steam just as it leaves the bladeing.(9.375kW, 97.62%, 94.24%)

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Answered: zzle angle is 20° blade speed 183 power…

Engineering

Civil Engineering

zzle angle is 20° blade speed 183 power lost by fa g bearing friction nd (1) The net p he exhaust

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

205kg/hr of dry saturated steam at 0.7MPA. The exhaust pressure is
(2.48N, 130.8kJ/kg)
The nozzlès of a simple De-laval turbine are supplies with
60kPa; nozzle angle is 20°, nozzle efficiency 80%; blade outlet
angle 30; blade speed 183m/sec and blade velocity-coefficient
0.85. The power lost by fan action and disc friction is 1.5kW.
Neglecting bearing friction and assuming that all above lore-appear
| as heat, find (1) The net power at the shaft; (2) The quality of
steam in the exhaust pipe where the speed is small; and (3) the
quality of steam just as it leaves the bladeing.
(9.375kW, 97.62%, 94.24%)

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