Cold water flows through a shower head steadily at a rate of 6 kg/min. The water is heated in an electric water heater from 25°C to 45°C. In an attempt to conserve energy,it is proposed to pass the drained warm water at a temperature of 38°C through a heat exchanger to preheat the incoming cold water. Design a heat exchanger to preheat the incoming cold water.

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To design a heat exchanger to preheat the incoming cold water using the drained warm water from the ... View the full answer