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Figure 3.3 - Floating-head heat exchanger (non-pull through type)

U-tube exchanger: This type of exchangers consists of tubes which are bent in the

form of a „U and rolled back into the tube sheet shown in the Figure 1.4. This means

that it will omit some tubes at the centre of the tube bundle depending on the tube

Figure 3.4. Removable U-tube heat exchanger

arrangement. The tubes can expand freely towards the „U‟ bend end.

The different operational and constructional advantages and limitations depending on

applications of shell and tube exchangers are summarized in table 1.1 standards provide

the guidelines for the mechanical design of unfired shell and tube heat exchangers. As

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