Page 83 - Chemical process engineering design and economics

68 Chapter 2

Table 2.14 Calculation Procedure for Depreciable Capital Cost—
Average Factor Method____________________________

1. Obtain purchased-equipment costs for carbon steel at the tabulated size
and capacity exponent from Table 2.9.

2. Calculate the equipment cost for the required size from Equation 2.13.1
in Table 2.13.

3. Obtain cost indexes from Table 2.12.

4. Calculate the equipment base cost at the present time, C PB i, from Equa-
tion 2.13.2.

5. Calculate the actual equipment cost, C , at the design pressure and
PAi
temperature, material-of-construction, and the required equipment design
from Equation 2.13.3.

6. Calculate the delivered equipment cost from Equation 2.13.4.

7. Calculate the average installation factor for all equipment, f,, from Equa-
tions 2.13.5 and 2.13.6.

8. Calculate the installed equipment cost at actual design conditions, CSAI.
from Equation 2.13.7.

9. Calculate the costs at the base conditions, CSBI, from Equation 2.13.8.

10. Specify the process type.

11. Obtain the cost factors for buildings and auxiliary facilities from Table
2.6.

12. Calculate the combined factors for buildings and auxiliaries, f AB, from
Equation 2.13.9.
13. Calculate the depreciable capital cost from Equation 2.13.10.

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