Page 206 - Design and Operation of Heat Exchangers and their Networks

Optimal design of heat exchangers 195

5.2.1 Geometric parameters
The design of shell-and-tube heat exchangers deals with many geometry
data. The basic segmental baffle geometry is shown in Fig. 5.1. Some of
them should be known or specified, and others can be calculated.
The main parameters are as follows:
Tube layout pattern, Fig. 5.2
Tube outside diameter d o
Tube wall thickness δ t
Tube pitch s, Eq. (5.4)
Transverse tube pitch s t
Longitudinal tube pitch s l
Diagonal tube pitch s d , Eq. (5.43)
Width of pass divider lane in tube bundle in crossflow direction δ tp

Fig. 5.1 Basic segmental baffle geometry.

Fig. 5.2 Tube layout patterns.