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Aire atmosf rico a 1 0 deg C entra a un ducto rectangular de 2 m de largo con 7 . 5 cm x

Aire atmosfrico a 10\deg C entra a un ducto rectangular de 2m de largo con 7.5 cm x 15 cm de seccin transversal. El flujo msico del aire es 0.1 kg/s. Si la temperatura de la superficie es de 150\deg C. Determine:
a) El coeficiente de transferencia de calor
b) La temperatura de salida del aire.
c) La razn de transferencia de calor
d) La cada de presin------------------Atmospheric air at 10\deg C enters a 2m long rectangular duct with a cross section of 7.5 cm x 15 cm. The mass flow of air is 0.1 kg/s. If the surface temperature is 150\deg C. Determine:
a) The heat transfer coefficient
b) The air outlet temperature.
c) The heat transfer rate
d) Pressure drop

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