$!$

Required Information

A $12-$m$-$long section of a $5-$cm$-$dlameter horizontal hot$-$water plpe passes through a large room whose temperature is $\backslash (27^\{\backslash$circ$\}\backslash$mathrm$\{$C$\}\backslash ).$ The temperature and the emissivity of the outer surface of the plpe are $\backslash (73^\{\backslash$circ$\}\backslash$mathrm$\{$C$\}\backslash )$ and $0\mathrm{.}8,$ respectively. Use the property tables to calculate the properties of alr at the film temperature.

Determine the rate of heat loss from the plpe by natural convection.

The rate of heat loss from the plpe is