77 calculators for compressor design, equipment sizing, and facility engineering
Calculate compressor horsepower with isentropic and polytropic efficiency, staging, and discharge temperature.
Size compressors per GPSA and API standards. Calculate head, power, and efficiency for recip or centrifugal.
Determine whether centrifugal or reciprocating compressor is better suited based on flow, pressure, and MW.
Convert between ACFM, SCFM, ICFM, MMSCFD, and mass flow using Z-factor and operating conditions.
Calculate fuel gas consumption for gas engine and turbine drivers with altitude derating and annual cost.
Calculate Z-factor, k-value, density, and molecular weight at compressor suction and discharge conditions.
Calculate capacity control steps and power savings. Compare unloaders, clearance pockets, speed control, and bypass.
Calculate centrifugal compressor discharge temperature from suction conditions and pressure ratio per GPSA.
Calculate and convert between polytropic and isentropic efficiency for centrifugal compressors.
Interactive performance map with head-flow curves, speed lines, surge limit, and efficiency contours.
Calculate centrifugal compressor polytropic head from pressure ratio, gas properties, and compressibility.
Calculate surge margin, control line positioning, and minimum stable flow per API 617 guidelines.
Size centrifugal tuyere separators with 99% efficiency for liquids at 10 microns and solids at 15 microns.
Size oil-flooded and dry screw compressors. Calculate BHP, discharge temp, volumetric efficiency, and oil flow.
Estimate stages, horsepower, interstage pressures, and cylinder bore sizing using industry methodology.
Optimize multi-stage compression ratios for balanced power distribution and temperature control.
Calculate reciprocating compressor discharge temperature using adiabatic and polytropic methods.
Quick HP per MMscfd estimation based on compression ratio and gas gravity for budgetary sizing.
Calculate rod loads, compression/tension forces, reversal verification, and frame load limit checks.
Analyze P-V diagrams to calculate work, volumetric efficiency, and identify performance issues.
Calculate volumetric efficiency from clearance volume, compression ratio, and predict capacity with unloaders.
Calculate pulsation frequencies, acoustic velocity, resonant pipe lengths, and pulsation bottle sizing.
Design pulsation filter bottles: Helmholtz frequency, choke tube sizing, orifice plates, and HP loss estimation.
Evaluate vibration severity zones, allowable limits, balance grades, and bearing defect frequencies.
Size anchor bolts for compressor foundation mounting: embedment depth, spacing, edge distance, and tensioning.
Size concrete foundation blocks based on machine footprint, mass ratio requirements, and soil bearing limits.
Estimate foundation depth based on frost penetration, soil stratum depth, mass ratio, and anchor embedment.
Calculate epoxy grout volume for skid-to-foundation mounting with depth, area, and material estimates.
Verify compressor foundation mass ratio meets industry 3:1 to 5:1 guidelines with soil mass contribution.
Calculate natural frequencies and check resonance avoidance with operating speed and harmonics.
Calculate soil bearing pressure under static and dynamic loads with 1,500 psf target / 2,000 psf maximum.
Calculate vibration amplitude from unbalanced forces and verify levels meet GMRC and API limits.
Calculate stoichiometric and actual air-fuel ratios for engine-driven compressors. Rich/lean analysis and emissions tuning.
Predict compressor flow at varying suction and discharge conditions using performance curve corrections and off-design factors.
Design 2-phase and 3-phase vessels per API 12J with retention time analysis and Souders-Brown sizing.
Size three-phase separators for oil, water, and gas separation with retention time and settling calculations.
Compare horizontal, vertical, filter, cyclone, and three-phase separators for optimal type selection.
Interactive wizard to select the optimal separator type based on your operating conditions.
Design wire mesh pads, vane packs, inlet devices, and coalescers using GPSA methodology.
Size coalescing filter separators for fuel gas conditioning and custody transfer with two-stage design.
Size cyclone and multi-cyclone separators for high-efficiency particulate and liquid removal.
Size cyclosep separators with 98% efficiency, liquid slug handling, and 3:1 turndown ratio.
Size gas scrubbers and knockout drums for compressor suction, fuel gas, and equipment protection.
Size vertical fuel gas filter/separators with tuyere inlet and coalescing elements.
Size horizontal separators, scrubbers, and knockout drums using Souders-Brown with K-factor corrections.
Calculate Cv for gas and liquid service with choked flow, cavitation, and velocity checks.
Predict aerodynamic noise, SPL at distance, OSHA compliance, and pipe wall transmission loss.
Calculate heat exchanger duty, surface area, and LMTD for shell-and-tube design.
Calculate heat transfer rates using conduction, convection, and radiation with overall U-values.
Calculate kW heater requirements for heating liquids including start-up, operating, and flow-through.
Size kettle, thermosiphon, and forced-circulation reboilers with duty, LMTD, and heat flux.
Calculate LMTD, bare tube area, face area, bay dimensions, and fan HP for fin-fan heat exchangers.
Determine evaporation rate, blowdown, makeup water, L/G ratio, tower characteristic, and fan HP.
Design vapor-compression refrigeration for NGL recovery. Calculate COP, compressor power, and sizing.
Size fired heaters: radiant/convection sections, tube wall temperature, fuel consumption, and efficiency.
Calculate flooding, weir loading, downcomer backup, pressure drop, weeping, and entrainment.
Design steam jet ejectors: entrainment ratios, nozzle sizing, staging, and performance metrics.
Calculate power recovery, outlet temperature, refrigeration duty, and JT valve comparison.
Calculate TDH from pipe lengths, elevations, and fitting losses. Verify NPSH margin and motor power.
Size motors per NEMA with NEC wire/breaker sizing, FLA, starting current, and energy cost analysis.
Size gas turbines with altitude/temperature derating, heat rate, fuel consumption, and CO2 emissions.
Evaluate bolt load, gasket seating stress, target torque, and leakage risk for bolted flange joints.
Calculate partial fill volume, total capacity, and strapping tables for horizontal and vertical tanks.
1-Foot and Variable-Design-Point methods with hydrostatic test, shell weight, and wind girder analysis.
Calculate N2 or natural gas padding, breathing rates, emergency venting, and regulator Cv per API 2000.
Analyze uniform and differential settlement, planar tilt, edge settlement, and out-of-plane index.
Design NGL meter stations: components, back pressure requirements, and straight pipe runs.
Calculate minimum spacing distances for compressor stations, tanks, and process equipment.
Ampacity derating, voltage drop analysis, conduit sizing, and breaker selection for hazardous areas.
Calculate Division 1 and Division 2 hazardous area extents for gas facility electrical design.
Calculate dead, wind, seismic loads, column forces, and foundation reactions for pipe rack design.
Darcy-Weisbach with Colebrook-White friction, Crane K-factors, elevation head, and gas corrections.
Calculate branch connection reinforcement area, pad sizing, and code compliance per ASME B31.
Calculate test pressure with location class factors, test duration, and 90% SMYS verification.
Calculate launcher and receiver dimensions, barrel sizing, and valve requirements per design guidelines.
Ziegler-Nichols, Cohen-Coon, IMC/Lambda, and Tyreus-Luyben methods with controllability assessment.
Calculate sound level at distance for FERC noise compliance. Determine Ldn at property line.
Calculate PTE for engines, turbines, and heaters. Determine NOx, CO, VOC, and HAP emissions.
Determine Title V and PSD major source status by checking emissions against EPA thresholds.
Best for: >5,000 ACFM, low ratio (<3:1 per stage), continuous duty
Best for: <5,000 ACFM, high ratio (>3:1), variable conditions
Best for: 500–20,000 ACFM, moderate ratio, low-maintenance
Isentropic and polytropic methods, staging theory, efficiency definitions, and discharge temperature.
Head-flow characteristics, surge and stonewall, speed lines, efficiency islands, and off-design operation.
Positive displacement principles, P-V diagrams, clearance effects, volumetric efficiency, and valve losses.
ISO 10816 severity zones, API vibration limits, balance grades, and bearing defect frequency analysis.
Souders-Brown equation, retention time, liquid loading, inlet devices, and API 12J design methodology.
LMTD method, effectiveness-NTU, fouling factors, TEMA types, and shell-and-tube design principles.
ISA 75.01 Cv equations, choked flow, cavitation, flashing, valve characteristics, and rangeability.
DOT 49 CFR 192 setback distances, API 2510, NFPA 59A, and compressor station layout principles.
Station configuration, building setbacks, piping arrangement, noise barriers, and emergency access.