Pipe with inner and outer diameter of 50 mm and 60 mm, respectively, are used for transporting superheated vapor in a manufacturing plant. The pipes with thermal conductivity of 16 w/mk are connected together by flanges with combined thickness of 20 mm and outer diameter of 90 mm. Air condition surrounding the pipes has a temperature of 25 c and a convection heat transfere coefficient of 10 w/m^2k. If the inner surface temperature of the pipe is maintained at a constant temperature of 150c determine the temperature at The base flange and the rate of heat loss through the flange.