A 2.5 cm inside diameter pipe is being used to convey a liquid food at 80°C ( Fig. E XXXXXXXXXXThe inside convective heat transfer coeffi cient is 10 W/( m 2 °C). The pipe (0.5 cm thick) is made of...

A 2.5 cm inside diameter pipe is being used to convey a liquid food at 80°C ( Fig. E4.13 ). The inside convective heat transfer coeffi cient is 10 W/( m
²
°C). The pipe (0.5 cm thick) is made of steel (thermal conductivity = 43 W/[m °C]). The outside ambient temperature is 20°C. The outside convective heat-transfer coeffi cient is 100 W/( m
²
°C). Calculate the overall heat transfer coeffi cient and the heat loss from 1 m length of the pipe.