August 2015

Heat Transfer

Evaluate selection criteria for double-pipe and multitube heat exchangers

Double-pipe and multitube (also called hairpin) heat exchangers, with their compactness and ability to optimize thermal performance without compromising maintainability, are finding increasing accepta..

Pramanik, R., Srinath, N. R., Fluor Daniel India

Double-pipe and multitube (also called hairpin) heat exchangers, with their compactness and ability to optimize thermal performance without compromising maintainability, are finding increasing acceptance in the HPI. Increasingly, licensors are specifying double-pipe and multitube heat exchangers as a preferred alternative to shell-and-tube (S&T) exchangers. However, unlike their S&T counterparts, the design and engineering of double-pipe and multitube heat exchangers are generally carried out by the supplier and not by the FEED and detailed engineering contractors. This sometimes makes it difficult for the engineering contractors to optimally evaluate double-pipe and multitube heat exchange

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