7: horizontal steel pipe having a diameter of 5 cm is maintained at a temperature of 50◦C in a large room where the air and wall temperature are at 20◦C. The surface emissivity of the steel may be taken as 0.8. Using the data of Table 1-3, calculate the total heat lost by the pipe per unit length.

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Chapter7: Forced Convection Inside Tubes And Ducts
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7: horizontal steel pipe having a diameter of 5 cm is maintained at a temperature of 50◦C in a large room where the air and wall temperature are at 20◦C. The surface emissivity of the steel may be taken as 0.8. Using the data of Table 1-3, calculate the total heat lost by the pipe per unit length.
Example 7: horizontal steel pipe having a diameter of 5 cm is maintained at a temperature of 50•C
in a large room where the air and wall temperature are at 20•C. The surface emissivity of the steel
may be taken as 0.8. Using the data of Table 1-3, calculate the total heat lost by the pipe per unit
length.
Transcribed Image Text:Example 7: horizontal steel pipe having a diameter of 5 cm is maintained at a temperature of 50•C in a large room where the air and wall temperature are at 20•C. The surface emissivity of the steel may be taken as 0.8. Using the data of Table 1-3, calculate the total heat lost by the pipe per unit length.
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