The steam expands isentropically in a simple impulse turbine from 12 bar, 250°C with an enthalpy of 2935 k.J/kg to an enthalpy of 2584 kJ/kg at 0.1 bar. The nozzle makes 20° with blade motion and the blades are symmetrical. Calculate the blade velocity that produces maximum efficiency for a turbine speed of 3600 rpm. Assume that the steam enters the nozzle with negligible velocity.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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The steam expands isentropically in a simple impulse turbine from 12 bar, 250°C with an enthalpy of 2035 k.J/kg to an enthalpy of 2584 ki/kg 2t 0.1 bar. The nozzle makes 20° with blade motion and the blades are symmetrical. Calculate the blade velocity that produces maximum efficiency for turbine speed of 3600 rom. Assume that the steam enters the nozzle with negiigible velocty.
The steam expands isentropically in a simple impulse turbine from 12 bar, 250°C with an enthalpy of 2935 k.J/kg to an enthalpy of 2584 kJ/kg at 0.1 bar. The
nozzle makes 20° with blade motion and the blades are symmetrical. Calculate the blade velocity that produces maximum efficiency for a turbine speed of 3600
rpm. Assume that the steam enters the nozzle with negligible velocity.
Transcribed Image Text:The steam expands isentropically in a simple impulse turbine from 12 bar, 250°C with an enthalpy of 2935 k.J/kg to an enthalpy of 2584 kJ/kg at 0.1 bar. The nozzle makes 20° with blade motion and the blades are symmetrical. Calculate the blade velocity that produces maximum efficiency for a turbine speed of 3600 rpm. Assume that the steam enters the nozzle with negligible velocity.
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