Example 18.1 m =2 kg/s Known: Insulation ·SS Heat transfer negligible Steam P2 15 bar △PE→0 P1=40 bar V2=665m/s T1=400C V1=10m/s Determine: Control volume ·Area A2,inm2 boundary Converging-diverging nozzle Assumptions: 1.The control volume shown on the accompanying figure is at steady state. 2.Heat transfer is negligible and 3.The change in potential energy from inlet to exit can be neglected. 上游通大学 March 31,2018 6 SHANGHAI JIAO TONG UNIVERSITYMarch 31, 2018 6 Example 18.1 Steam Converging-diverging nozzle Known: • SS • Heat transfer negligible • ∆PE0 Determine: • Area A2 , in m2 Assumptions: 1. The control volume shown on the accompanying figure is at steady state. 2. Heat transfer is negligible and 3. The change in potential energy from inlet to exit can be neglected