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Instrumentation costs are included in the cost of the adsorber. Sales taxes and freight costs are based on the sum of the total equipment costs (i.e., adsorber vessels, carbon, and auxiliary equipment). The sales taxes are assumed for purposes of this cost example to be 3 percent of the equipment costs,17 while the freight charges are assumed for purposes of this cost example to be 5 percent of the equipment costs. Hence, the purchased equipment cost (B) is given by the following equation: ππ’ππhππ ππ πΈππ’ππππππ‘ πΆππ π‘ (π΅) = 1.08 Γ π΄ = 1.08 Γ ($240,805 + $32,200) = $294,845 where A = Sum of adsorber vessels, carbon, and auxiliary equipment costs ($). Other Direct and Indirect Costs: Table 1.7 shows the calculations for the other direct and indirect costs for the carbon adsorber. These costs are calculated using the factors provided in Section 1.8 and the purchased equipment cost (B) calculated above. Total Capital Investment: The total capital investment (TCI) is the sum of all the direct and indirect costs and the contingency factor (10% for this example) and is calculated as follows: Total Capital Investment (TCI) = DC + IC + C + Contractor Fees TCI = 1.48 x B + CF(1.48 x B) + 0.1(1.48 x B) = $528,000 1.9.3 Total Annual Costs Annual Costs, Table 1.8 gives the direct and indirect annual costs for the carbon adsorber system, as calculated from the factors in Section 1.8. As discussed in Section 1.8.4, the total annual cost (TAC) is comprised of the direct annual costs (DAC), indirect annual costs (IAC), annual disposal costs (Disposalcost) and any recovery credits (RC), as described by the equation: TAC ο½ DAC ο« IAC ο« Disposal Cost ο RC The total direct annual cost (DAC) is the sum of the operator labor, maintenance, carbon replacement, and utility costs. Operator Labor Costs: The operator costs are the sum of the operator and supervisor costs. As explained in Section 1.8.1.6, the annual operator labor is estimated to be one-half hour per shift. The annual labor cost is calculated as follows: Operator Labor Cost ο½ 0.5 hours ο΄ 3 shifts ο΄ 360 days ο΄ $27.48 ο½ $14,839 / year shift day year hour 17 In some states, pollution control equipment is exempt from sales taxes. This should be accounted for in the TCI estimate if relevant. 1-39PDF Image | Carbon Adsorbers
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