Question

Consider an ideal Rankine cycle with reheat based on water as the working fluid. The steam at the high-pressure turbine inlet is at 10 MPa and 700 K and it is saturated steam at the outlet The steam is reheated to 675 K before it enters the low pressure turbine. The pressure is reduced to where the steam is let down to 150 kPa The mass flow rate is 60 kg/s, 1. Draw the T-s diagram; [5 2. State all the simplifications you have made. [7] 3. Determine: a. The net power output from all turbines; [10] b. The heat transfer rate in the reheat process; [10] c. The thermal efficiency of the cycle. [10

Answer 1

16.36 16.36 kig he 467-0+10:34

vet 62.274-62) . 6 61652-4kW 二 Gn-189868-2 b 61652-4 18 3868-2 32-y

T-s dig 个 2-5 npa ^- = 0.99 908-62 t 0-19 (2798-38-908,62) gog. 62 +)870.g6ニ29ヲ9. 48E/irg h2ニ 。02.29