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Practical Steam Turbine Performance Calculations
Can be used for condensing steam turbines and for the low-pressure section of extraction steam turbines. See Figure 3 or 4. Shaft Power Known (generator, torque meter coupling or the driven unit’s power) Overall efficiency (η) = Actual enthalpy / Isentropic enthalpy Isentropic enthalpy = Inlet enthalpy (h 1) – Exhaust enthalpy (h 2i
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