Question: A condenser (heat exchanger) brings 1 kg/s water flow at 10 kPa from 300C to saturated liquid at 10 kPa, as shown in Fig. P6.84.

A condenser (heat exchanger) brings 1 kg/s water flow at 10 kPa from 300°C to saturated liquid at 10 kPa, as shown in Fig. P6.84. The cooling is done by lake water at 20°C that returns to the lake at 30°C. For an insulated condenser, find the flow rate of cooling water.

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