A long $12-$cm$-$diameter steam pipe whose external surface temperature is $90$C passes through some open area that is not protected against the winds. Determine the rate of heat loss from the pipe per unit of its length when the air is at $1$ atm pressure and $7$C and the wind is blowing across the pipe at a velocity of $65$km$/$h$.$ It is given that the properties of air$$at $1$ atm and the film temperature of $48\mathrm{.}5$C are k $=0\mathrm{.}02724$ W$/$m$$C$,$ $=1\mathrm{.}784105$ m$2/$s$,$ and Pr $=0\mathrm{.}7232.$

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The rate of heat transfer is W$.$