A copper tube of 20mm outer diameter, 1mm thickness and 20m long (thermal conductivity = 400 W/mK) is carrying saturated steam at 1500C (Convective HTC = 150 W/m2K). The tube is exposed to ambient air temperature of 270C. the convective HTC of air is 5 W/m2K. Glass wool is used for insulation (|Thermal conductivity = 0.075 W/mK). If the thickness of the insulation used is 5mm higher than the critical thickness of insulation, calculate the rate of heat lost by the steam and the rate of steam condensation in kg/hr (The enthalpy of condensation of steam = 2233 kJ/kg)