Compared to square pitch layouts, triangular pitch tube arrangements in shell-and-tube exchangers ________________?
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Answer: C. Permits the use of more tubes in a given shell diameter
Explanation
Triangular pitch tube arrangements pack tubes closer together compared to square pitch layouts of equal shell dimensions. Closer packing geometry allows a significantly greater number of heat transfer tubes to fit inside the same shell diameter. This increased tube count maximizes the available surface area for heat exchange within a compact equipment footprint. Shell-and-tube heat exchangers are the most common industrial devices used for transferring heat between fluid streams. Tube layouts are standardized into either triangular or square pitch configurations depending on process requirements. Higher surface area per unit volume enhances overall thermal performance and reduces capital equipment costs.
Permitting fewer tubes is incorrect because triangular pitch actually increases the total tube count significantly. Facilitating easier external cleaning is the primary advantage of square pitch, not triangular pitch layouts. Since triangular pitch does not facilitate easier cleaning due to narrow lanes, option B is completely false.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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