8-98 Hot exhaust gases leaving an internal combustion engine at 400°C and 150 kPa at a rate of 0.8 kg/s is to be used to produce saturated steam at 200°C in an insulated heat exchanger. Water enters the heat exchanger at the ambient temperature of 20°C, and the exhaust gases leave the heat exchanger at 350°C. Determine a) the rate of steam production, b) the rate of exergy destruction in the heat exchanger, and c) the second-law efficiency of the heat exchanger. | |
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