That mhhe.com website gives way too low compressor cost.
In that url the word peters is included so I assume that it is based on the book by Peters & Timmerhaus, published by McGrawHill.
For example: for a 3000 kW centrifugal compressor the website calculates 1.67 million US $, which corresponds with Figure 12-28 for Jan 2002. Figure B-5 for Jan 2002 in the Peters book gives 2.2 million US $.
Those costs you have to increase considerably to get 2020 cost.
Towler & Sinnott's book gives a formula in the form: Ce = a + b*Sn
where:
Ce = purchased equipment cost on a U.S. Gulf Coast basis, Jan. 2010 (CEPCI = 532.9, NF refinery inflation index = 2281.6)
a, b = cost constants
S = size parameter, for compressor KW
n = exponent for that type of equipment
For a centrifugal compressor they give:
a = 580,000
b = 20,000
n = 0.6
For example: for compressor S = 3000 kW that would give 3.02 million US $ (Jan 2010) which you have to increase to get 2020 cost.
If the compressor is to be driven by a gas turbine or steam turbine you need to include the purchased equipment cost for that too.
If the compressor is made of some alloy that also increases purchased cost.
Also the compressor design pressure has an impact on purchased equipment cost.
Note also that the installed cost of a compressor (or any other piece of equipment) is always much higher than the purchased equipment cost.
For an estimate of the purchased compressor cost you best contact a vendor.
To determine the installed cost you best contact an experienced cost estimator in your company.
If you would estimate it yourself it would only be a wild guess and probably too low.
Edited by PingPong, 24 November 2019 - 05:24 AM.