Heat transfer co-efficient equation for forced convection, Nu = 0.023 Re0.8 . Prn, is not valid, if the value of Options: A . &nbspN = 0.4 is used for heating B . &nbspN = 0.3 is used for cooling C . &nbspReynolds number for the flow involved is > 10000 D . &nbspReynolds number for the flow involved is

Heat transfer co-efficient equation for forced convection, Nu = 0.023 Re0.8 . Pr

Question

Heat transfer co-efficient equation for forced convection, Nu = 0.023 Re0.8 . Prn, is not valid, if the value of

Options:

A . N = 0.4 is used for heating

B . N = 0.3 is used for cooling

C . Reynolds number for the flow involved is > 10000

D . Reynolds number for the flow involved is < 2100

Answer: Option D

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