The booklet describes about Turbine fundamentals, theory, losses in Power Turbines used in Power Plants

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Fig.1.1 Hero's Reaction Turbine

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Fig.1.3 Action of Steam on Curved Blades

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Fig.1.6 Pressure Compounded Impulse Turbine
Fig.1.5 Simple impulse Turbine Rotor
Fig.1.7 Velocity Compounded impulse Turbine
Fig.1.7 (a) Two Stage Velocity Compounded
Impulse Turbine

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Fig.1.10 Double Casing Impulse-Reaction Turbine

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Blade efficiency ( ) =
Work done by moving blades
Available energy
Fig.1.11 Ideal Efficiency Curves for Impulse & Reaction Stages

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Fig.1.12 Steam Flow & Losses in a Turbine Stage

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Fig.1.13 Secondary Flows in Blades

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Fig.1.14 Interstage Sealing of Impulse & Reaction Stage
Fig.1.15 LP Turbine Blades Stiffened by Lacing Wire

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outlet)blademovingisentropicat(Enthalpy
100%x
-inlet)bladefixedat(Enthalpy
outlet)blademovingat(Enthalpy
=
-)inletbladefixedat(Enthalpy
100%
stagein thedropheatIsentropic
stagein thedropheatActual
=Stage x

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(internal) =
H - H
H - H
x 100%1 2
1 3
and (external) =
H - H
H - H
x 100%1 2
1 4

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Fig.1.16 Turbine Condition Line Fig.1.17 Stage Condition Line
Fig.1.18 HP, IP Cylinder Efficiencies Fig.1.19 LP Cylinder Efficiencies