Factored CAPEX Estimator

Class 4/5 capital cost estimate using Lang, Hand, and Guthrie factored methods. CEPCI-scaled. Accuracy: -30% / +50%. For proposal-grade / pre-FEED work only — not sanctioned FID estimates.

CSV Input

References: Peters, Timmerhaus & West (5th ed., 2003); Guthrie (Chem. Eng., 1969); Turton et al. (5th ed., 2018); AACE 18R-97. Categories: pump, heat_exchanger, pressure_vessel, tower, reactor, compressor, fired_heater, tank, instrument, package, other. Materials: carbon_steel, ss304, ss316, duplex, nickel_alloy.

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