Page 333 - Steam Turbines Design, Applications, and Rerating
P. 333

Shortcut Graphical Methods of Turbine Selection  307






































            Figure 14.38 Basic efficiency of multivalve, multi-
            stage noncondensing steam turbines. (General Elec-
            tric Company, Fitchburg, Mass.)












            Figure 14.39 Pressure ratio correction for non-
            condensing steam turbines. (General Electric
            Company, Fitchburg, Mass.)



                                        0.746 × 19.44
                                =
                                  0.737 × 1.003 × 0.957 × 1.013
                                = 20.2 lb/hph (12.4 kg/kWh)
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