Marshall and Stevens equipment cost index

The cost of equipment or of a complete plant must be up-graded to account for the reduced purchasing power of the dollar (or pound) from a given time datum to the present. Various cost indices are published annually (and monthly, see Chemical Engineering magazine). Those of particular relevance to chemical plant costs are the Nelson Refinery Construction Index, Chemical Engineering (CE) Plant Cost Index, and the Marshall and Swift (M S, previously Marshall and Stevens) Equipment Cost Index. These indices apply to complete plants rather than individual items of equipment. The appropriate equation is C2 = C, (I2/I ), where Zis the relevant index, and the suffixes represent different time periods. 

The Marshall and Stevens equipment cost index or the Chemical Engineering magazine plant cost index are usually used. Current values are given in each issue of Chemical Engineering magazine. Values for several years cost indices are tabulated in Table 11-1. The total uninstalled equipment cost will be the sum of condenser, reboiler, tower casing, and tray costs. The total capital cost is then found from Eq. (11-1). The capital cost per year equals the capital cost times the depreciation rate. Note that cost estimates can easily vary by up to 35%. 

Marshall and Swift Equipment Cost (formerly Marshall and Stevens Index) Chemical Process Industries Output Chemical Engineering... 

A composite index for the United States process plant industry is published monthly in the journal Chemical Engineering, the CPE plant cost index. This journal also publishes the Marshall and Stevens index (M and S equipment cost index), base year 1926. 

The Marshall and Swift (M S) Equipment Cost Index (6), formerly Marshall and Stevens, for installed equipment costs is pubHshed monthly in the ChemicalPngineering]om n. A. The indexes reported are the all-industries, process industries, and several specific industry indexes. The yearly all-industries index, given in Table 1, is based on 47 industrial categories. This is commonly used for the translation of purchased process equipment costs, even though... 

---