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Technical calculations
for energy engineers.

Four integrated modules — Convert, Flow, Equipment, and Logistics — covering every conceptual calculation you need for LNG and gas projects.

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Unit Conversions
LNG & gas unit conversion engine
Active
Sample calculations
Mass → Volume
1.0 MTPA
142.47 MMSCFD
Volume → Mass
500 MMSCFD
3.513 MTPA
Energy content
1,000 BTU/scf
37.26 MJ/Nm³
MTPA ↔ MMSCFD ↔ MMBTUD
HHV / LHV heating value basis
Custom base T & P conditions
Density and GHV control
50+ unit type conversions
Modules

Four tools. One suite.

Each module is purpose-built for a specific engineering discipline.

Unit Conversions
Convert

Convert between mass flow, volumetric flow, energy content and more — with HHV/LHV selection, density control, and configurable base conditions. 50+ unit types built for LNG and natural gas projects.

MTPA ↔ MMSCFD ↔ MMBTUDHHV / LHV heating value basisCustom base T & P conditionsDensity and GHV control50+ unit type conversions
Line Sizing & Hydraulics
Flow

Size pipelines using Darcy-Weisbach for liquids and gases, with pipe schedule presets, material roughness database, and elevation correction. Outputs velocity, pressure drop per km, and Reynolds number.

Darcy-Weisbach & Hazen-WilliamsLiquid & gas phase supportSCH 40/80/160 pipe presetsMaterial roughness databaseVelocity + ΔP/km output
Equipment Screening
Equipment

Screen and size centrifugal pumps, compressors, LNG storage tanks, and vaporizers at the conceptual stage. Get shaft power, duty, and approximate dimensions for prefeasibility studies.

Centrifugal pump sizingCompressor shaft powerLNG storage tank volumesVaporizer duty calculationsPrefeasibility dimensions
Supply Logistics (TC/IS)
Logistics

Calculate the number of ISO containers in circulation, dispatch frequency, safety stock and storage autonomy using the TC/IS transport cycle methodology — tailored for small-scale LNG distribution.

TC/IS transport cycle methodContainers in circulationDispatch interval & frequencySafety stock calculationStorage autonomy days
In practice

Real inputs.
Instant results.

Each module transforms engineering parameters into actionable numbers — no spreadsheets, no manual formulas.

Convert
LNG & gas unit conversion
Input
1.0 MTPA
Mass → Volume flow
Output
142.47 MMSCFD
Input
500 MMSCFD
Volume → Mass flow
Output
3.513 MTPA
Input
1,000 BTU/scf
Energy content
Output
37.26 MJ/Nm³
Flow
Line sizing & hydraulics
Pipe · flow
6" SCH40 · 100 m³/h
Liquid · water
Velocity · ΔP
2.8 m/s · 0.42 bar/km
Pipe · flow
4" SCH80 · 5 MMSCFD
Gas · natural gas
Velocity · ΔP
8.1 m/s · 1.24 bar/km
Pipe · flow
12" SCH40 · 500 m³/h
Liquid · LNG
Velocity · ΔP
1.9 m/s · 0.09 bar/km
Equipment
Conceptual sizing
Pump
50 m head
100 m³/h
18.4 kW
shaft power
Compressor
5 MMSCFD
70 bar outlet
1,240 kW
shaft power
LNG Tank
3,000 m³
capacity
Ø18 × 12m
dimensions
Logistics
TC/IS fleet sizing
Scenario: 8 MMSCFD · 11 loads/day · 4h round trip
55
ISO containers
Fleet in circulation
2.2 h
interval
Dispatch frequency
120 t
safety stock
3-day autonomy buffer
4.4 h
cycle time
Full round-trip TC
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