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Required information A 30-cm-diameter, 4.85-m-high cylindrical column of a house made of concrete (k = 0.79 W/mK, a=5.94
Posted: Tue Jul 12, 2022 8:48 am
by answerhappygod
- Required Information A 30 Cm Diameter 4 85 M High Cylindrical Column Of A House Made Of Concrete K 0 79 W Mk A 5 94 1 (19.59 KiB) Viewed 38 times
Required information A 30-cm-diameter, 4.85-m-high cylindrical column of a house made of concrete (k = 0.79 W/mK, a=5.94 x 10-7 m²/s. p= 1600 kg/m³, and cp=0.84 kJ/kg-K) cooled to 14°C during a cold night is heated again during the day by being exposed to ambient air at an average temperature of 28°C with an average heat transfer coefficient of 14 W/m2.K. Use analytical one- term approximation method (not the Heisler charts). Determine the amount of heat transfer until the surface temperature reaches to 24.875°C. 3460 kJ. The amount of heat transfer is