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Mechanical Engineering · Q53

Heat And Mass Transfer

Engineering and GATE · Mechanical Engineering · question 53

Q53

The rate of energy transferred by convection to that by conduction is called

A.
Stanton number
B.
Nusselt number
Answer
C.
Biot number
D.
Peclet number

Answer: Option B

Solution

Answer: Option B
Solution:
Nusselt number is the ratio of convection heat transfer to conduction heat transfer. Nu >> 1 , More effective Convection Nu = 1, For fluid layer represent heat transfer by pure conduction across layer