If UD = Overall Dirt Heat Transfer coefficient and Uc = Overall Clean Heat Transfer coefficient, then which of the following relation is correct?

If UD = Overall Dirt Heat Transfer coefficient and Uc = Overall Clean

1.	If UD = Overall Dirt Heat Transfer coefficient and Uc = Overall Clean Heat Transfer coefficient, then which of the following relation is correct?
A.	UD > Uc
B.	UD < Uc
C.	UD = Uc
D.	UD >> Uc
Answer» C.

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If UD = Overall Dirt Heat Transfer coefficient and Uc = Overall Clean Heat Transfer coefficient, then which of the following relation is correct?

If UD = Overall Dirt Heat Transfer coefficient and Uc = Overall Clean Heat Transfer coefficient, then which of the following relation is correct?

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