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Time Value Of Money

0 copper 12 ss 20 nickelalloy 25 fmmaterialfactor

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Unformatted text preview: ressure, psia, if 100 psi CM FPR FM 100 Carbon steel 1.0 Copper 1.2 SS 2.0 Nickel alloy 2.5 FM Material Factor Titanium clad 3.0 3 0.25 $160, 000 ChBE 4505/4525 Schork L7 Step 3 4 ChBE 4505/4525 Schork L7 Step 4 Step 5 CTPI = CDPI + ??? CTCI = CTPI + ??? 5 ChBE 4505/4525 Schork L7 Method 2. Study Estimate (Lang) Requires Process design with mass & NRG balances Equipment sizing Materials of construction (incl. HX & pumps) Accuracy +/‐ 35% Need f.o.b. purchase cost of each major piece of equipment See later notes. Step 1 Prepare equipment list Title, label, size, material of construction Design temperature, design pressure Step 2 To data in Step 1, add cost & cost index for each piece of equipment Update costs with cost index (date) 6 ChBE 4505/4525 Schork L7 Sum costs to get CP, total purchase cost Multiply by 1.05 to account for delivery Multiply the result by the appropriate Lang Factor, fL To obtain CTPI (total permanent investment) Or CTCI (total capital investment) (working capital estimated at 15% of TCI Or 17.6% of TPI) Lang Factors do not account for Spares, storage, i...
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