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Chemical Engineering - Process Equipment and Plant Design - Discussion

Discussion Forum : Process Equipment and Plant Design - Section 8 (Q.No. 9)
Process Equipment and Plant Design
9.
In a double pipe (concentric) heat exchanger, the hydraulic radius for heat transfer (for a fluid flowing through the annulus) would be
same as that for fluid flow.
less than that for fluid flow.
more than that for fluid flow.
D2 - D1 (D1 and D2 are I.D. of inner and outer pipes respectively).
Answer: Option
Explanation:
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