Alcohol enters the inner tube of a double-pipe heat exchanger (1.D.= 0.0874 ft, 0.D. = 0.1096 ft) at 2000F and exits at 100F. This is cooled by water flowing inside the jacket at an average temperature of 60F. Use a basis of a unit length of each pipe for the calculation process. 3. Determine the temperature of the inner surface of the inner tube T1, given the following individual heat transfer coefficient: hcons = 200Btu/ft? h F, hrad = 50 Btu/ft? h F, and hairt = 500 Btu/ft? h F