What is the typical ratio of tube length to shell diameter in shell and tube heat exchangers?

Process Equipment and Plant Design MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Process Equipment and Plant Designchemical-engineering › process-equipment-and-plant-design
Published
2 Mar 2019
Last updated
28 May 2026

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Explanation

The ratio of tube length to shell diameter in shell and tube heat exchangers generally ranges from 8:1 to 12:1 for both liquid-liquid and gas-gas types. For liquid-liquid exchangers, the ratio is typically between 4:1 and 8:1, while gas-gas exchangers often have a ratio less than 4:1.

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