A 2.0-in schedule 40 steel pipe (see Appendix A) has k = 27 Btu/h ∙ ft ∙ ºF. The fluid inside the pipe has h = 30 Btu/h ∙ ft2 ∙ ºF, and the outer surface of the pipe is covered with 0.5-in fiberglass insulation with k = 0.023 Btu/h ∙ ft ∙ ºF. The convection coefficient on the outer insulation surface is 2.0 Btu/h ∙ ft2 ∙ ºF. The inner fluid temperature is 320ºF and the ambient temperature is 70ºF. Calculate the heat loss per foot of length.