For a multipass shell and tube heat exchanger, the LMTD correction factor is always________________?
Correct answer: C. < 1
- A. 1
- B. > 1
- C. < 1
- D. Between 1 & 2
Explanation
The LMTD correction factor accounts for the departure of a multipass exchanger from ideal countercurrent flow and is normally less than unity. A value of one corresponds to ideal countercurrent or cocurrent limiting arrangements, not the usual multipass case.
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