Page 242 - Air Pollution Control Engineering

05_chap_wang.qxd 05/05/2004 3:46 pm Page 221
Wet and Dry Scrubbing 221

Table 8 (Continued)
Application Pressure drop (in. H O)
2
Asphalt
Batch plants—dryers 10–15
Transfer points 6–10
Glass
Container 25–60
Plate 25–60
Borosillicate 30–60
Cement
Wet process kiln l0–15
Transfer points 6–12
Source: ref. 18.

Table 9
Capital Cost Factors for Venturi Scrubbers
Cost item Factor

Direct Costs (DC)
Purchased Equipment Costs (PEC)
Venturl scrubber + auxiliary equipment As estimated, EC
Instrumentation a Included with EC
Sales tax 0.03 EC
Freight 0.05 EC
Purchased Equipment Cost, PEC 1.08 EC
Direct Installation Costs
Foundation and supports 0.06 PEC
Erection and handling 0.40 PEC
Electrical 0.01 PEC
Piping 0.05 PEC
Insulation 0.03 PEC
Painting 0.01 PEC
Site preparation As required, SP
Buildings As required, Bldg.
Total Direct Costs 0.56 PEC + SP + Bldg.
Indirect Costs (IC)
Engineering 0.10 PEC
Construction 0.10 PEC
Contractor fee 0.10 PEC
Start up 0.01 PEC
Performance test 0.01 PEC
Contingency 0.03 PEC
Total Indirect Cost 0.35 PEC
Total Capital Costs 1.91 PEC+ SP + Bldg.
a If instrumentation is not included with EC, estimate as 10% of the EC
Source: Data from refs. 9, 26, and 27.