A COPPER PIPE 12 flows at 40C through a copper pipe (K=386W/mK) whose inner and outer diameters are 4.09 and 4.83m, respectively. It is desired to insulate the pipe with. Styrofoam (K=0.04W/mK) to provide protection for personnel and to decrease heat transfer from the 25C ambient air. The individual, interior and exterior heat transfer coefficients are 500 and 5W/m2K, respectively. Calculate the thickness of the insulation necessary to reduce the heat transfer by 50%, with respect to the value that it would have if the fube were bare. b. e=0.71ft h.e =0.1ft