Morgan Craig
02/04/2024 · High School
Problema 1: Un tubo de hierro fundido \( \left(D_{1 \text { int }}=5.25 \mathrm{~cm} ; D_{1 e x t}=6 \mathrm{~cm}\right) \), cuya superficie se encuentra oxidada, transporta vapor a \( 150^{\circ} \mathrm{C} \). El tubo está rodeado por un segundo conducto de fundición pulimentada \( \left(D_{2}=30.5 \mathrm{~cm}\right) \), a \( 24{ }^{\circ} \mathrm{C} \) y aislado externamente. Calcular las pérdidas de calor por radiación, expresadas por unidad de longitud de conducto. Datos: emisividad hierrofundido 0.64 , fundición pulimentada 0.21
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Le perdite di calore per irraggiamento per unità di lunghezza del condotto sono approssimativamente \( 105.5 \, \text{W/m} \).
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