Page 201 - Plant design and economics for chemical engineers

COST ESTIMATION 175

TABLE 10
Cost of buildings including services based on purchased-equipment cost

Percentage of purchased-equipment cost
New plant at New unit at
Type of process new site existing site Expansion at an
Plaw (Grass roots) (Battery limit) existing site
Solid 68 25 15
Solid-fluid 41 29 7
Fluid 45 5-18$ 6
t See Table 8 for definition of types of process plants.
$ The lower figure is applicable to petroleum refining and related industries.
TABLE 11
Cost of buildings and services as a percentage of fixed-capital investment
for various types of process plants

Type of process New plant at New unit at Expansion at an
plantt new site existing site existing site

Solid 18 1 4
Solid-fluid 12 7 2
Fluid 10 2-4% 2

t See Table 8 for definition of types of process plants.
$ The lower figure is applicable to petroleum refining and related industries.

Yard Improvements
Costs for fencing, grading, roads, sidewalks, railroad sidings, landscaping, and
similar items constitute the portion of the capital investment included in yard
improvements. Yard-improvements cost for chemical plants approximates 10 to
20 percent of the purchased-equipment cost. This is equivalent to approximately
2 to 5 percent of the fixed-capital investment. Table 12 shows the range in
variation for various components of yard improvements in terms of the fixed-
capital investment.

Service Facilities
Utilities for supplying steam, water, power, compressed air, and fuel are part of
the service facilities of an industrial plant. Waste disposal, fire protection, and
miscellaneous service items, such as shop, first aid, and cafeteria equipment and
facilities, require capital investments which are included under the general
heading of service-facilities cost.
The total cost for service facilities in chemical plants generally ranges from
30 to 80 percent of the purchased-equipment cost with 55 percent representing