Page 110 - Air Pollution Control Engineering

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Fabric Filtration 89

Table 12
Example Case Capital Costs
Direct costs Cost ($)
Purchased Equipment Costs
Fabric filter $ 690,000
Bags 49,000
Auxiliary equipment 10,000
$ 749,000
Instruments and controls $ 74,900
Taxes 22,500
Freight 37,500
Purchased equipment cost (PEC) $ 884,000
Installation Direct Costs
Foundation and supports $ 35,400
Erection and handling 442,000
Electrical 70,700
Piping 8,840
Insulation for ductwork 61,900
Painting 17,700
Site preparation (SP) —
Buildings (Bldg.) —
$ 636,000
Total direct costs $ 1,520,000
Indirect Costs
Engineering and supervision $ 88,400
Construction and field expense 177,000
Construction fee 88,400
Start-up fee 8,840
Performance test 8,840
Contingencies 26,500
Total indirect cost $ 398,000

Total direct and indirect cost = $ 1,920,000
Total capital cost (TCC)

Table 8 is used to obtain the bag cost, C . From the previous example case, choose fiber-
B
glass bags with Teflon backing. Assume the bag diameter is 8 in. with rings. The bag cost
2
2
is given as ($0.99/ft ) × (49,500 ft ) = $49,000.
Assume that auxiliary equipment costs obtained (see another chapter on cost estimation of
air pollution control technologies) are $10,000. The equipment cost (EC) is then $690,000 +
$49,000 + $10,000 = $749,000. Table 9 lists the purchased equipment cost (PEC):
Instrumentation = 0.10(EC) = $74,900
Taxes = 0.03(EC) = $22,500
Freight = 0.05(EC) = $37,500
The total PEC is then $749,000 + $74,900 + $22,500 + $37,500 = $884,000. Table 9 is
then used to obtain the total capital cost (TCC) of the baghouse system. These costs are
given in Table 12. Another Humana Press book (37) gives additional cost data.