An analysis of the cost of individual pieces of equipment shows that the size factors exponent will vary from 0.3 to unity, but the average is very near to 0.6, thus the name for the rule of thumb. If a higher degree of sophistication is sought, Table 1 below can be used. It lists the value of a size exponent for various types of process equipment. The Table 1 values have been condensed from a
C 1 cost of Plant / equipment 1 C 2 cost of Plant/ equipment 2 Q 1 capacity or size of Plant/ equipment 1 Q 2 capacity or size of Plant/ equipment 2 x powersizing exponent or the costcapacity exponent One of the model is called sixtenth (6/10) factor rule, according to this rule x
Process Equipment, Cost Scale-up Determination of R Values The relationship between cost and capacity is given by the equation size2 cost2 costl Sizel A plot of the ratios on a log-log scale produces a straight line. R values for equipment have a larger range than for entire process plants, for which the
Equipment Sizing and Capital Cost Estimation 15 Cost Equations SSL (2004) Purchase Cost Equationsfor numerous process units see Table 16.32 for other equipment items. Available literature sources back to 1960 consulted. After determining a suitable
Cost Ratios for Size Multiples Process Plants, Costs of Scaled-up Units 17 Equation (1) can be modified to take inflation into account. This is done by multiplying the capacity ratio by the ratio of cost indexes, as in Eq. (3) (3) Here, 11 and 12 are cost indexes for particular years. Among the indexes available for adjusting the costs of process plants are the Chemical Engineering (CE) plant cost
Matches Process Equipment Cost Estimates. Matches provides conceptual (order-of-magnitude) process equipment cost estimates for over 275 types of equipment used in the chemical and metallurgical industry. We provide this educational process equipment cost information to help you establish project scope in evaluation of process alternatives.
Jan 01, 2002 articleosti_797810, title Process Equipment Cost Estimation, Final Report, author Loh, H. P. and Lyons, Jennifer and White, Charles W., abstractNote This report presents generic cost curves for several equipment types generated using ICARUS Process Evaluator. The curves give Purchased Equipment Cost as a function of a capacity variable.
TABLE 5-11 Cost Data for Equipment and Ancillary Items Equipment type Equipment Cost ($1000) Cost of ancillary items as % of equipment cost ($1000) 100,000 bbl 400,000 bbl 100,000 bbl 400,000 bbl Furnace 3,000 10,000 40% 30% Tower 2,000 6,000 45% 35% Drum 1,500 5,000 50% 40% Pump, etc. 1,000 4,000 60% 50%
Table 1 Examples of Cost Exponents for Process Equipment. Equipment Type Range of Correlation Capacity Units Cost Exponent (n) Air compressor, multiple stages 1 -1500 latexkW/latex 0.85 Shell and tube heat exchanger stainless steel 1.9 1860 latexm2/latex 0.60
Process Equipment Cost Estimation Final Report Process Equipment Cost Estimation Final Report Page 7 April 21st, 2019 - This report presents generic cost curves for several equipment types generated using ICARUS Process Evaluator The curves give Purchased Equipment Cost as a function of a capacity variable This work was performed to assist NETL ...
Index of 277 pieces of Process Equipment. office (405) 340-2673 fax (866) 583-3035 toll-free (800) 525-6277
A nonlinear cost relationship often used in estimating the cost of a new industrial processing plant from the known cost of an existing facility of a different size is known as the exponential rule. Let y n be the known cost of an existing facility with capacity Q n , and y be the estimated cost of the new facility which has a capacity Q.
and r is the exponent, or proration factor. (equation 1) ... include the risk in case of dissimilar process and size. Apply location and escalation adjustments to normalize costs ... indices provide equipment cost index values arranged in accordance to the process industry in which the unit is used, using 1926 as the base period.
equipment, structures, and buildings, as well as to bring them into operation. This may be a daunting task for the cost engineer depending on the scope and size of the process being built. This study aims to compare different methods of calculating the equipment capital cost for major process equipment found inside many process plants.
Use the power-sizing model to estimate the cost of a piece of equipment that has 75% more capacity than a similar piece of equipment that cost $1,000. The appropriate power sizing exponent for this type of equipment is 0.725. Choose an answer by clicking on one of the letters below, or click on Review topic if needed. A $1,750. B $725. C $750 ...
Equipment Design and Cost Estimation for Small Modular Biomass Systems, Synthesis Gas Cleanup, and Oxygen Separation Equipment . Task 1 Cost Estimates of Small Modular Systems . Nexant Inc. San Francisco, California . Subcontract Report . NREL/SR-510-39943 . May 2006
The Total Installed Cost (TOT) estimate was then obtained by multiplying the appropriate factor by the equipment cost, or TOT Equip * f The overall factor estimate calculated included not only the delivered process equipment cost, but material and labor costs for site improvements, foundations, steel, buildings, piping, electrical, controls ...
Oct 04, 2018 Specifically, cost is a function of size or capacity raised to a scaling exponent or scale factor.5 The applicable equation is as follows The scaling exponent captures the nonlinear relationship that exists and economies of scale where, as a capacity of a facility or piece of ME increases, the incremental cost decreases for each additional ...
Feb 21, 2016 C F * Sum (C_e) C is the total capital cost, F is the installation factor also known as Lang factor, and C_e is the cost of major equipment. Lang factor is 3.1 for solid processing plant and 4.74 for fluids processing plant. Better estimate can be made when the different factors are used for corresponding equipment.
Aug 23, 2013 Capacity Scale-Up Thumb Rules-Suggestions Needed - posted in Industrial Professionals Hi, There is an existing chemical plant with known design. If the plant has to be scaled-up to say 125% or 150% of its current capacity and for want of time, a rough conceptual design has to be made for CAPEX estimation purposes, I wanted to know what are thumb rules, if any, that can be
Factorial Techniques applied in Chemical Plant Cost Estimation A Comparative Study based on Literature and Cases MSc Thesis Work CH3901 Defendant
TABLE 1 Cost Ratios for Increasing the Size of a Plant as a Function of Exponent R Cost Ratios for Size Multiples Process Plants, Costs of Scaledup Units 17 Equation (1) can be modified to take inflation into account This is done by multiplying the capacity ratio by the ratio of cost indexes, as in Eq (3) (3) Here, 11 and 12 are cost
estimation total capital cost based on major, exponent for various types of process equipment the table 1 values have been condensed from a vast comprehensive tabulation of estimating cost data presented in the march 24 1969 issue of chemical
Assuming a linear relationship between power and cost, and assuming also that power is a cost driver of solar array cost, the single-point analogy calculation can be performed as follows Solar Array Cost for System B 3.4/2.3 * $10M $14.8M Complexity or adjustment factors can also be applied to an analogy estimate to make allowances for year
COST ESTIMATION Cost Indexes Present Cost(original cost at time t)* Marshall and Swift. 1. All industry-equipment index. Arithmetic average of 47 equipment types. 2. Process-industry equipment index. Weighted average of 8 of these cement 2% paint 5% chemicals 48% paper 10% clay products 2% petroleum 22% glass 3% rubber 8% MS was 100 in 1926.
Instructions for file EQUIPMENT COSTS accompanying Plant Design and Economics for Chemical Engineers, 5th edition, Peters, Timmerhaus, and West. 1. The opening sheet of the file EQUIPMENT COSTS is called CALCULATION PAGE. The column at the left lists equipment types alphabetically. The names used are the same as those on the cost figures ...
Three tanks will be required, resulting in a cost of 22,200. A V2 horse-power pump cost 1,035 for the demonstration. A pump for each well would cost a total of 3,105. These additional costs amount to about 40,000. The value of the cost exponent, n, used in Equations 7.1 and 72, varies depending on the class of equipment being represented.
The size exponent b is typically between 0 and 1. For a wide variety of equipment types, it is approximately 0.6. (a). For 0b1, show that cost per unit size decreases with increasing size. b ...
Feb 05, 2012 Effect of capacity on cost A equipment cost attribute n C purchased cost Ca Aa n cost exponent Cb Ab typically 0.4-0.8 Often use n 0.6, then refer to eqn as the 6/10ths rule 6/10ths rule can be used to scale up an entire process a unit with required attribute b unit with base attribute Exponents tabulated in ...
the cost required to prepare an estimate, relative to that for preparing a Class 5 estimate. For example, if it costs 0.005 percent of the project cost to develop a Class 5 estimate, then a Class 1 estimate could require as much as 100 times that, or 0.5 percent of the total project cost. Figure 1The capacity-factored relationships
TPC (TEC) X (E.F) (equation 2) Where TPC is total plant cost, TEC is total. equipment cost and EF is a factor that relates. to the process type, the EF values are given in. table 2. In figure 2 ...
diameters and construction materials to be able to use this program 76 purchased equipment cost of, exponent for various types of process equipment the table 1 values have been condensed from a vast comprehensive tabulation of estimating cost data presented in the march 24 1969 issue of chemical engineering magazine this article by k m guthrie ...
industries varies with type of operation, the size of the plant and the ... for 1946 compared to 1954 is indicated by the relative process equipment cost index for two years which were 123 and 182 S. No. Year Cost , $ Cost Index ... a 6/10 or 0.6 (exponent factor)
Aug 03, 2016 Because the cost depends on the size or scale of process equipment, the correlation given by Equation (1), first proposed by Williams, 20 is often used (1) in which C 1 , 2 is the cost of an item at size or scale S 1 , 2 and p is an exponent that varies between 0.3 and 1.2, depending on the type of process/item being scaled.
An equipment factored estimate is produced by taking the cost of individual types of process equipment, and multiplying it by an installation factor to arrive at the total costs. In practice, this has proven to be quite a useful method since a substantial part of