Question

A mixing tank initially contains 3000 pounds of liquid water. The tank is fitted with two inlet pipes, one with hot water(90 C) delivered at a mass flow rate of 0.8 lb/s and the other with cold water (20C) delivered at a mass flow rate of 1.3 lb/s. Water exits through a single exit pipe at a mass flow rate of 2.6 lb/s.

What is the temperature of the water delivered by the tank assuming that it was initially filled from these two inlets and the tank is well mixed? Neglect heat loss to the surrounding.Does this change over time?

Answer #1

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