Equipment selection heat transfer, table

Pure component physical property data for the five species in our simulation of the HDA process were obtained from Chemical Engineering (1975) (liquid densities, heat capacities, vapor pressures, etc.). Vapor-liquid equilibrium behavior was assumed to be ideal. Much of the flowsheet and equipment design information was extracted from Douglas (1988). We have also determined certain design and control variables (e.g., column feed locations, temperature control trays, overhead receiver and column base liquid holdups.) that are not specified by Douglas. Tables 10.1 to 10.4 contain data for selected process streams. These data come from our TMODS dynamic simulation and not from a commercial steady-state simulation package. The corresponding stream numbers are shown in Fig. 10.1. In our simulation, the stabilizer column is modeled as a component splitter and tank. A heater is used to raise the temperature of the liquid feed stream to the product column. Table 10.5 presents equipment data and Table 10.6 compiles the heat transfer rates within process equipment. 

The range of overall heat transfer coefficients (U) is about 10 - 200 Btu/hr fC°F. Table 8-11 lists the U-values for various types of equipment, and fouling factors of some flowing media are shown in Table 8-12. Table 8-13 illustrates a heat exhanger specification form. Factors governing the selection of process fluids in the tube and shell sides of an exchanger are illustrated in Table 8-14. 

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