Process Equipment Documentation

This folder contains detailed documentation for all process equipment in NeqSim.

Equipment Categories

Flow Equipment

Equipment File Description
Streams streams.md Material and energy streams
Mixers & Splitters mixers_splitters.md Stream mixing and splitting

Separation Equipment

Equipment File Description
Separators separators.md 2-phase and 3-phase separators, scrubbers
Distillation distillation.md Distillation columns
Absorbers absorbers.md Absorption/stripping columns
Membranes membranes.md Membrane separation units
Filters filters.md Particulate and charcoal filters

Heat Transfer Equipment

Equipment File Description
Heat Exchangers heat_exchangers.md Heaters, coolers, condensers, reboilers

Rotating Equipment

Equipment File Description
Compressors compressors.md Gas compression, mechanical losses, seal gas
Pumps pumps.md Liquid pumping
Expanders expanders.md Power recovery, turboexpanders

Flow Control

Equipment File Description
Valves valves.md Throttling valves, chokes, safety valves

Reactors

Equipment File Description
Reactors reactors.md CSTR, PFR, equilibrium reactors
Electrolyzers electrolyzers.md Water and CO₂ electrolysis

Ejectors

Equipment File Description
Ejectors ejectors.md Steam and gas ejectors

Safety Equipment

Equipment File Description
Flares flares.md Flare systems and combustion

Well/Reservoir

Equipment File Description
Wells wells.md Production wells, chokes
Reservoirs reservoirs.md Material balance reservoir modeling
Subsea Systems subsea_systems.md Subsea wells and flowlines

Pipeline/Network

Equipment File Description
Pipelines pipelines.md Pipe flow, pressure drop
Risers pipelines.md#risers SCR, TTR, Flexible, Lazy-Wave risers
Networks networks.md Pipeline network modeling
Manifolds manifolds.md Multi-stream routing

Flow Measurement

Equipment File Description
Differential Pressure differential_pressure.md Orifice plates, flow measurement

Storage

Equipment File Description
Tanks tanks.md Storage tanks, LNG boil-off

Gas Treatment

Equipment File Description
Adsorbers adsorbers.md CO₂ and gas adsorption

Power Generation

Equipment File Description
Power Equipment power_generation.md Gas turbines, fuel cells, renewables

Utility Equipment

Equipment File Description
Adjusters util/adjusters.md Variable adjustment to meet specs
Recycles util/recycles.md Recycle stream handling
Calculators util/calculators.md Custom calculations and setters

Quick Reference

Creating Equipment

// All equipment follows similar pattern
EquipmentType equipment = new EquipmentType("Name", inletStream);
equipment.setParameter(value);
equipment.run();
Stream outlet = equipment.getOutletStream();

Adding to ProcessSystem

ProcessSystem process = new ProcessSystem();
process.add(stream);
process.add(equipment1);
process.add(equipment2);
process.run();

Getting Equipment by Name

Compressor comp = (Compressor) process.getUnit("K-100");

Common Methods

All equipment inherits from ProcessEquipmentBaseClass:

Method Description
run() Execute calculation
runTransient() Execute transient step
getName() Get equipment name
getInletStream() Get inlet stream
getOutletStream() Get outlet stream
getPressure() Get operating pressure
getTemperature() Get operating temperature
getMechanicalDesign() Get mechanical design object
needRecalculation() Check if recalculation needed

Compressor-Specific Methods

Method Description
initMechanicalLosses(shaftDiameter) Initialize seal gas and bearing loss model
getSealGasConsumption() Get total seal gas consumption (Nm³/hr)
getBearingLoss() Get total bearing power loss (kW)
getMechanicalEfficiency() Get mechanical efficiency (0-1)

Equipment Inheritance

ProcessEquipmentInterface
    │
    └── ProcessEquipmentBaseClass
            │
            ├── TwoPortEquipment (inlet/outlet pattern)
            │       ├── Heater, Cooler
            │       ├── Compressor, Pump, Expander
            │       ├── ThrottlingValve
            │       └── ...
            │
            ├── Separator (multi-outlet)
            │       ├── ThreePhaseSeparator
            │       ├── GasScrubber
            │       └── ...
            │
            ├── Mixer (multi-inlet)
            ├── Splitter (multi-outlet)
            │
            └── DistillationColumn