A counter flow shell-and-tube heat exchanger is designed to heat water (cp= 4186 J/Kg °C) entering the shell side of the

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A Counter Flow Shell And Tube Heat Exchanger Is Designed To Heat Water Cp 4186 J Kg C Entering The Shell Side Of The 1 (41.63 KiB) Viewed 19 times

A counter flow shell-and-tube heat exchanger is designed to heat water (cp= 4186 J/Kg °C) entering the shell side of the heat exchanger at 40 °C with a mass flow rate of 20,000 Kg/h. Water, with a mass flow rate of 10,000 Kg/h at 200 °C, flows through the tube side. The tubes have an outside diameter of 2.5 cm and a length of 3.0 m. The overall heat transfer coefficient based on the outside heat transfer surface area is 450 W/m² °C and the temperature efficiency of the heat exchanger is 0.125, calculate the following: 1- The heat transfer rate, 2- The exit temperatures of water at the two exits, 3- The surface area of the heat exchanger, 4- The number of tubes used in the heat exchanger, and 5- The effectiveness of the heat exchanger