In a manufacturing facility, 5-cm-diameter brass balls (Æ¿ = 8522 kg/m3 and cp = 0.385 kJ/kg ·

Question:

In a manufacturing facility, 5-cm-diameter brass balls (Æ¿ = 8522 kg/m3 and cp = 0.385 kJ/kg · oC) initially at 120oC are quenched in a water bath at 50oC for a period of 2 min at a rate of 100 balls per minute. If the temperature of the balls after quenching is 74oC, determine the rate at which heat needs to be removed from the water in order to keep its temperature
constant at 50oC.