Question: A well-insulated shell-and-tube heat exchanger is used to heat water (cp 4.18 kJ/kg C) in the tubes from 20 to 70C at a rate

A well-insulated shell-and-tube heat exchanger is used to heat water (cp 4.18 kJ/kg • °C) in the tubes from 20 to 70°C at a rate of 4.5 kg/s. Heat is supplied by hot oil (cp = 2.30 kJ/kg • °C) that enters the shell side at 170°C at a rate of 10 kg/s. Determine the rate of heat transfer in the heat exchanger and the exit temperature of oil.

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