Heat transfer co-efficient hG(Kcal hr m2 C) and mass velocity of...

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Heat transfer co-efficient, h_G(K_cal/hr.m².°C) and mass velocity of air, G (kg/hr.m²) for air flow parallel to the surface in case of constant drying rate in batch drying is related as h_G = 0.0176 G^0.8. But when the flow of air perpendicular to the surface is encountered, this equation changes to

A. h_G = 1.004 G^0.37

B. h_G = 1.004 G^0.8

C. h_G = 0.0176 G^0.37

D. h_G = 0.0176 G^1.37

Answer: Option A

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