Four 2-m-long double pipe heat exchangers made of 4-std type M and 3-std type M copper tubing are connected in series to form one 8-m-long exchanger. It is used to cool (unused) engine oil. The...

Four 2-m-long double pipe heat exchangers made of 4-std type M and 3-std type M copper tubing are connected in series to form one 8-m-long exchanger. It is used to cool (unused) engine oil. The exchanger takes in water at 20°C at a flow rate of 30 kg/s and oil at a temperature of 140°C with a flow rate of 0.2 kg/s. Determine the expected outlet temperature of the oil and the pressure drop encountered by both streams. Assume counterflow. Compose a Summary of Performance chart.