ABSTRACT

Heat exchanger design methodology, shown in Figure 3.1, involves the following major design considerations [1]:

1. Process/design specications 2. Thermohydraulic design to ensure the required heat exchanger performance and to satisfy

the pressure-drop requirements for each stream 3. Flow-induced vibration in the case of shell and tube heat exchanger and individual n-tube

and bare tube bank compact heat exchanger 4. Mechanical design to provide the mechanical integrity required by design codes and

operating conditions 5. Cost and manufacturing considerations 6. Trade-off factors and system-based optimization

Most of these considerations are dependent on each other and should be considered simultaneously to arrive at the optimum exchanger design. Of these design considerations, items 1 and 2 are discussed in this chapter, ow-induced vibration and mechanical design are discussed in Chapters 10 and 11, respectively, and item 5 was discussed earlier in Chapter 1. The remaining item, trade-off factors and system-based optimization, is not within the scope of this book.