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Question

4.74 Figure P4.74 provides

steady-state operating data for a

cogeneration system with water

vapor at 20 bar, 360°C entering

at location 1. Power is developed

by the system at a rate of 2.2

MW. Process steam leaves at

location 2, and hot water for

other process uses leaves at

location 3. Evaluate the rate of

heat transfer, in MW, between

the system and its surroundings.

Let g = 9.81 m/s².

Fig: 1