A steel pipe with an inner diameter of 5 cm and a wall thickness of 3.2 mm passes through a large chamber which is maintained at 30°C and atmospheric pressure. 0.6 kg/s of hot water enters one end of the pipe at 82°C. If the length of the pipe is 15m, calculate the temperature of the outlet water, taking into account free convection and radiant heat loss from outside the pipe.

A steel pipe with an inner diameter of 5 cm and a wall thickness of 3.2 mm passes through a large chamber which is maintained at 30°C and atmospheric pressure. 0.6 kg/s of hot water enters one end of the pipe at 82°C. If the length of the pipe is 15m, calculate the temperature of the outlet water, taking into account free convection and radiant heat loss from outside the pipe.