Question: Air flows through a square duct with a constant surface temperature of 70 C, a length of 10 m, and a cross section area

Air flows through a square duct with a constant surface temperature of

Air flows through a square duct with a constant surface temperature of 70 C, a length of 10 m, and a cross section area of 0.0225 m. If the inlet temperature is 85 C and the volumetric flow rate is 0.1 m/min, determine the outlet temperature and the rate of heat loss. p= 1.014 m/kg, k= 0.02917 W/m.K, v= 2.046*105 m/s, cp= 1007.5 J/kg.K, Pr= 0.7166

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