(35 points): It is desired to design a feed water heater to supply a boiler. The inlet water temperature is 20 C flows at a rate of 9,000 kg/h, and is to be heated to 65 C. The pipe has a total fouling factor of 0.00026 m.K/W and a thermal conductivity of 0.122 W/m.K. The feed water is to be heated in the heat exchanger by condensing steam at 140 kPa. The outside heat transfer coefficient is 10,000 W/m2.K. Because of the space limitation, the heat exchanger should not exceed 2 m in length. Determine the configuration of this heat exchanger to accomplish this need. Use either a Shell & tube heat exchanger without baffles, or a double pipe heat exchanger without fins.