Hot oil is to be cooled by water in a one shell and 8 tube passes heat exchanger. The tubes are thin walled and made of copper with an internal diameter of 1.4 cm. The length of each tube pass in the...

Hot oil is to be cooled by water in a one shell and 8 tube passes heat exchanger. The tubes are thin walled and made of copper with an internal diameter of 1.4 cm. The length of each tube pass in the exchanger is 5 m, and the overall heat transfer coefficient is 310 W/ m².K. The water flows through the tubes at the rate of 0.2 kg/s and oil through the shell at a rate of 0.3 kg/s. The water and oil enter at temperatures of 20°C and 150°C, respectively. Calculate the rate of heat transfer in the heat exchanger and the outlet temperatures of water and oil. Take specific heats of water and oil as 4.18 and 2.13 kJ/kg.K, respectively.