INDEX Chemical engineering

Source Thorsen, D. R. The Seven-Year Surge in the CE Cost Indexes, Chemical Engineering,... 

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. 

American Institute of Chemical Engineers. (2001), Chemical Engineering Plant Cost Index, Chemical Engineering Progress, p. 134. 

Vatavuk, W. M., Updating the CE Plant Cost Index, Chemical Engineering, January 2002, pp. 62—70. 

There are several inflation or cost indexes in use. Exanqrles are the Chemical Engineering Cost Index (CE Index), and the Nelson Refinery Cost Index. Chemical Engineering magazine publishes the CE Index regularly, whereas the Oil and Gas Journal reports the Nelson Refinery Index. We will use the CE Index. Cost indexes are relative to some time in the past. Chemical Engineering magazine defined the CE Index as equal to 100 during 1957-1959 when plant costs were relatively stable. 

A composite index for the United States process plant industry is published monthly in the journal Chemical Engineering this is the Chemical Engineering Plant Cost Index (CEPCI), usually referred to as the CE index. Chemical Engineering also publishes the Marshall and Swift index (M S equipment cost index). 

Index chemical engineering plant cost index... 

CE Index Chemical Engineering Plant Cost Index... 

Wong A C Y and Liang J Z (1997), Relationship between die swell ratio and melt flow index . Chemical Engineering Science, 52,3219-3221. 

The most commonly used index is the chemical engineering plant cost index published in Chemical Engineering Magazine. 

The Chemical Abstracts (CA) File is the main abstracting and indexing service for biochemistry, chemistry, and chemical engineering. 

Dow s Fire andExplosion Index Ha ard Classification Guide 6th ed., American Institute of Chemical Engineers, New York, 1985. 

The CE Plant Cost Index (7) is also pubHshed monthly in the Chemical Engineering]omaci A. Index values are given for various categories of equipment, installation, labor, building, and supervision, as well as a composite plant cost index. The composite index for complete plant costs, tabulated in Table 1, is frequentiy used for the translation of purchased equipment costs, even though the equipment component of the index would be better. 

Table 9-42 presents information on some cost indices for the United States. Engineering News-Record updates its construction-cost index in March, June, September, and December. The Oil and Gas Journal gives the Nelson-Farrar refinery indices in the first issue of each quarter. The Chemical Engineering plant-cost index and Marshall and Swift equipment-cost index are given in each issue of the pubhcation Chemical Engineering. Derivation of the base values is referred to in the respective publications. 

Costs of shell-and-tube heat exchangers can be estimated from Fig. 11-41 and Tables 11-13 and 11-14. These 1960 costs should be updated by use of the Marshall and Swift Index, which appears in each issue of Chemical Engineering. Note that during periods of high and low demand for heat exchangers the prices in the marketplace may vary significantly from those determined by this method. 

Index (Reference 27) Engineering News Record (ENR) Construction Index (Reference 28) Marshal and Stevens Equipment Index (Reference 29) and Chemical Engineering Plant Index (Reference 29). 

For feasibility studies on chemical plants, the Chemical Engineering Plant Index is recommended. However, if extensive civil work is being estimated, the ENR Index will be applicable. 

Davison, G., and Hewitt, C.N. (ed.) (1997) Air Pollution in the United Kingdom, Royal Society of Chemistry, London. Dow Chemical Company (1993) Dow s Fire and Explosion Index Hazard Classification Guide American Institute of Chemical Engineers. 

Dow Chemical Company (1994a). Dow s Chemical Exposure Index Guide. 1st Edition. New York American Institute of Chemical Engineers. 

Lewis, D. J. (1979). The Mond Fire, Explosion and Toxicity Index Applied to Plant Layout and Spacing. i3th Annual Loss Prevention Symposium, April 2-5, 1979, Houston, TX, 20-26. Loss Prevention, No. 13. New York American Institute of Chemical Engineers. 

Various cost indices are published regularly. A conunonly used index is the Marshall and Swift (M S) equipment cost index published in the monthly magazine Chemical Engineering. For atmospheric pollution control equipment, the Vatavuk cost index may be used (Vatavuk, 1995). It is not recommended to use cost indices if the updating period exceeds ten years. 

In order to update the cost of the exchanger, we use the M S index whose value in 1992 and 1996 was 943 and 1,039, respectively (see Chemical Engineering magazine). Therefore, Eq. (III.l) may be used to give the 1996 cost of the 100 wr shell-and-tube heat exchanger to be... 

Chemical Engineering Plant Cost Index [42]. Probably the most commonly used cost adjusting index printed/updated monthly is in Chemical Engineering Magazine send has established continuity over many years. Its breakdo vn component costs apply to plants and plant equipment/systems. 

Marshall and Swift Equipment Cost Index [57]. Commonly used for process industry equipment and index numbers presented by industries in Chemical Engineering Magazine on a monthly basis. 

Chemical Engineering Plant Cost Index and Marshall and Sivift (M S) Equipment Cost Index appear regularly in Chem.ical Engineeiing. 

Dow Chemical Co., Dow s Fire and Explosion Index, Hazard Classification Guide, American Institute of Chemical Engineers, 6th Ed., 1987. 

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