Example 34.1 Entropy Production in a Steam Turbine Known: P1 =30 bar T =400°C Wey =540 kJ/kg steam expands through V1=160m/s a turbine at steady state. steam Find: Gcv/m D>T2=100C Tb=350K- Saturated vapor V2=100m/s Sketch 30 bar 400°C Assumption: 1.CV,(1,1,1)steady state 2.Heat transfer at T 3.△PE neglected 100C 上游充通大学 April 23,2019 6 SHANGHAI JLAO TONG UNIVERSITYApril 23, 2019 6 Example 34.1 Entropy Production in a Steam Turbine Find: steam Known: steam expands through a turbine at steady state. CV  / m Assumption: 1. CV, (1,1,1) steady state 2. Heat transfer at Tb 3. ∆PE neglected Sketch ?