Total Capital Investment

Total capital investment (TCI) is estimated from a series of factors applied to the purchased equipment cost (PEC) to obtain direct and indirect costs for installation. The TCI is the sum of the direct costs (equipment and installation) and indirect costs. The required factors are given in Table. Because ESPs can vary from small units attached to existing buildings to large, separate structures, specific factors for site preparation or for buildings are not given. However, costs for buildings and materials may be obtained from references such as Means Square Foot Costs 1987. Land, working capital, and off-site facilities are excluded from the table because they are required only for very large installations. However, they can be estimated on an as-needed basis. Note that the factors given in Table  are for average installation conditions, and for example, include no unusual problems with site earthwork, access, shipping, or interfering structures. Considerable variation may be seen with other-than-average installation circumstances. For two-stage precipitators purchased as packaged systems, several of the costs in Table would be greatly reduced or eliminated. These include instruments and controls, foundations and supports, erection and handling, painting, and model studies. An installation factor of 0.25 of the PEC (instead of 0.67 PEC) would be more nearly appropriate for the two-stage ESPs.

                                                 Capital cost factors for ESPs