A horizontal heated plate at 200 degree Celsius and facing upwards has been placed in still air at 20 degree Celsius. If the plate measures 1.25 m by 1 m, make calculations for the heat loss by natural convection. The convective film coefficient for free convection is given by the following empirical relationh = 0.32 (α) 0.25 W/m2 KWhere α is the mean film temperature in degrees kelvin

A horizontal heated plate at 200 degree Celsius and facing upwards ha

1.	A horizontal heated plate at 200 degree Celsius and facing upwards has been placed in still air at 20 degree Celsius. If the plate measures 1.25 m by 1 m, make calculations for the heat loss by natural convection. The convective film coefficient for free convection is given by the following empirical relationh = 0.32 (α) 0.25 W/m2 KWhere α is the mean film temperature in degrees kelvin
A.	6006 W
B.	5006 W
C.	4006 W
D.	3006 W
Answer» B. 5006 W

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