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Helen [10]
3 years ago
14

Estime la tasa de pérdida de calor por longitud unitaria de un tubo de acero de 2 in de diámetro interior y 2 _38 in de diámetro

exterior revestido con aislamiento de alta temperatura que tiene una conductividad térmica de 0.065 Btu/h ft y un espesor de 0.5 in. Por el tubo fluye vapor a 300 °F con una calidad de 99%. La resistencia térmica unitaria de la pared interior es 0.015 h ft2 °F/Btu, el coeficiente de transferencia de calor en la superficie exterior es 3.0 Btu/ft2 °F y la temperatura ambiente es 60 °F.
Spanish
1 answer:
lianna [129]3 years ago
6 0

Answer:

a

Explanation:

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