Heat exchangers costs

Heat exchanger cost data usually can be manipulated such that the fixed costs, represented by the coefficient a in Eq. (7.20), do not vary with exchanger specification. If this is done, then Eq. (7.6), as derived in App. F, can be modified to ... 

Heat exchanger cost laws often can be adjusted with little loss of accuracy such that the coefficient c is constant for different specifications, i.e.. Cl = Ca = c. In this case, Eq. (7.23) simplifies to ... 

Heat exchanger cost data can usually be manipulated such that fixed costs, represented by the Coefficient a in Equations H.2 to H.4, do not vary with exchanger specification2. Equations H.3 and H.4 can now be rearranged to give the modified heat exchanger area A as a function of actual area A and the cost law coefficients. 

We ignore the cost of the energy of pumping and the cost of water and only consider the investment cost of the heat transfer area. The heat exchanger cost is 25/ft2 of heat... 

TABLE 8.8 Shell/Tube Heat Exchanger Cost Factors... 

The heat exchanger costing equation is the costing equation derived in Example 3. The other costing equations were suggested to us by experienced engineers and are illustrative only. 

Figure 19.6 Shell-and-tube heat exchange cost.

Financing costs, 196, 207-208, 211 Finishing in equipment fabrication, 449 Fiimed-tube heat-exchanger costs, 616 Fire and explosion hazards, 55-59 Firm process design, 14, 18 Fittings ... 

A chart to estimate the costs of ejectors for thermocompression has been developed.Approximate costs of compressors for mechanical vapor recompression also can be found. In addition, these publications contain details of cost estimation for heat exchangers. For more detailed estimation of cost of shell-and-tube exchangers, see Purohit. " Plate-and-frame and spiral-plate heat exchanger costs can be estimated using Kumana. " ... 

Air-Cooled Heat-Exchanger Costs The cost data that appear in Table 11-18 are unchanged from those published in the 1963 edition of this Handbook. In 1969 Guthrie [Chem. Eng., 75, 114 (Mar. 24, 1969)] presented cost data for field-erected air-cooled... 

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