Engineering Library
Scripts & Utilities
Browser-based engineering utilities. Paste or upload CSV data and get results in the browser — no install, no server.
- Amine Circulation SizerAcid-gas removed, amine circulation, rich loading, and reboiler duty per GPSA Sec. 21.
- Antoine Vapor PressureVapor pressure lookups from Antoine coefficients for 20 common hydrocarbons and fluids.
- Cable Schedule ValidatorNEC 310-based ampacity, continuous-load derate, and voltage drop checks on cable schedules.
- CoolProp Batch Property LookupThermodynamic property lookups across a batch of fluid state points.
- Crude Assay Cut YieldTBP-interpolated cut yields and volume-weighted cut density from an assay.
- Distillation Curve FitterD86 / D2887 to TBP conversion via Riazi–Daubert with linear interpolation at standard cut points.
- eFuel Carbon IntensityBatch well-to-wake CI calculator with LCFS, EU RED III, and US IRA 40B compliance flags.
- Electrical Load BalancerGreedy 3-phase load balancing across MCC panels with NEMA MG-1 unbalance check.
- Equipment Datasheet GeneratorGenerates formatted equipment datasheets from CSV input.
- Equipment Tag ValidatorValidates equipment tags against an ISA-5.1 format, checks duplicates and parallel-train suffixes.
- Factored CAPEX EstimatorCapital cost estimation using Lang and Hand factor methodology.
- Flange Rating LookupASME B16.5 pressure–temperature lookup for Group 1.1 and 2.3 across Class 150–2500.
- Heat Loss / InsulationCylindrical and flat-wall heat loss per ASTM C680 with outer surface temperature check.
- Instrument Range CheckerSpan position, alarm bound, and turndown checks for process transmitters and SIL-rated loops.
- LCO2 Boiloff EstimatorTank heat-leak and boiloff rate (lb/hr, %/day) for liquid CO2 storage.
- Line List ValidatorChecks line lists for duplicate line numbers, pressure/temperature mismatches, and class-rating conflicts.
- Mass Balance CheckerValidates mass balance across process streams and flags closure errors.
- P&ID Tag ExtractorRegex-based extraction of equipment, line, and ISA instrument tags from raw P&ID text.
- PDF Table ExtractorExtracts tabular data from uploaded PDF files.
- Pipe Spec GeneratorGenerates pipe specifications from service and class inputs.
- Power Factor CorrectionCapacitor-bank kVAR sizing, μF per phase, and feeder I²R energy savings per IEEE 1036.
- PSV Relief Load SummarizerGoverning-case rollup of PSV scenarios with per-header load aggregation.
- Psychrometric BatchMoist-air properties (W, h, Tdp, Twb) per ASHRAE 2021 Fundamentals Ch. 1.
- Reactor Conversion EstimatorClosed-form conversion for CSTR / PFR reactors with 1st or 2nd order Arrhenius kinetics.
- Relief Scenario MatrixBuilds a structured relief-device scenario matrix per API 521.
- Relief Valve Capacity VerifierCompares nameplate vs API 520/526 required orifice area with PASS/FAIL margin.
- Renewable Diesel Economics$/gal stack: feedstock + H2 + opex + capex vs RIN, LCFS, BTC credits.
- Solar Array String SizerNEC 690.7 cold-Voc max and MPPT-bounded string length and parallel count.
- Steam Trap Loss EstimatorNapier orifice flow per failed/leaking trap with annual lb/yr and $/yr loss summary.
- Utility Cost ModelCalculates utility costs for process plants from consumption and tariff data.
- Voltage Drop CalculatorNEC Chapter 9 Table 9 voltage drop for AWG 14 through 500 kcmil in Cu / Al, PVC / steel conduit.
- Wind Energy EstimatorRayleigh-based AEP and capacity factor estimator for wind turbines per IEC 61400-12-1.
© 2026 Inflection Point Engineering, LLC. All rights reserved. The content of this page — including calculation methods, reference data, written analysis, interactive tools, and source code — is the intellectual property of Inflection Point Engineering, LLC and is protected under applicable copyright, trademark, and trade secret laws. Unauthorized reproduction, redistribution, modification, or derivative use in whole or in part is prohibited without prior written consent.
Disclaimer. This material is provided for informational and educational purposes only and does not constitute professional engineering advice. Calculations, reference data, and methodologies are based on published standards and accepted engineering practice but are not a substitute for engineering judgment, site-specific analysis, or review by a licensed Professional Engineer. Inflection Point Engineering, LLC makes no warranties, express or implied, regarding the accuracy, completeness, or fitness for a particular purpose of any content presented here, and shall not be liable for any direct, indirect, incidental, or consequential damages arising from its use. Users assume all risk associated with applying this content to real-world design, operations, or decisions.
© 2026 Inflection Point Engineering, LLC. All rights reserved.