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Question: the figure below shows a powergenerating system at steady state...

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The figure below shows a power-generating system at steady state. Saturated liquid water enters at 60 bar with a mass flow rate of 0.86 x 106 kg/hr. Saturated liquid exits at 0.10 bar with the same mass flow rate. As indicated by arrows, three heat transfers occur, each at a specified temperature in the direction of the arrow. The first adds 348.30 MW at 275°C, the second adds 141.90 MW at 420°C, and the third removes energy at 25°C. The system generates power at the rate of 206.40 MW. Determine, in MW: (a) The rate of heat transfer and (b) the accompanying rate of exergy transfer. (c) The net rate of flow exergy carried in by the water. (d) The rate of exergy destruction.

Q1 02 1 275°C : 2 Saturated liquid P2 0.10 bar m1 60 bar T3-25C- 03-?

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