A bank of 7.5 cm diameter tubes is to be used to heat water entering at 30 C at 1 atm pressure at a speed of 5, 15 and 45 m/s. find the heat transferred and the temperature of the fluid at the exit of the bank for when the bank is ON LINE and INTERCALED at the aforementioned speeds. Rows=20 and Columns=16. The spacing between horizontal and vertical tubes is 10 cm for both of them. The wall temperature of the tubes is kept constant at 150 C.