In a multipass shell and tube heat exchanger, tube side return pressure loss is equal to _____________ the velocity head?
Correct answer: B. Four times
- A. Twice
- B. Four times
- C. Square root of
- D. Square of
Explanation
In a multipass exchanger, the return bends cause a pressure loss commonly taken as four velocity heads. This accounts for the sharp change in flow direction at the tube-side return.
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