Question: A 3 0 - cm - diameter, cylindrical column of a house made of concrete ( k = 0 . 7 9 W / m

A 30-cm-diameter, cylindrical column of a house made of concrete (k =0.79 W/m*K, =5.94 x 10^-7 m^2/s, m =452.4 kg, cp =0.84 kj/kg*K) is heated during the day from 14C to 27C. The ambient temperature is 28C with an average heat convection coefficient of 14 W/m^2K analytical one-term approximation method to determine Use the (a) How long it will take for the column surface temperature to rise to 27C (b) The amount of heat transfer during this process
A 3 0 - cm - diameter, cylindrical column of a

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