neqsim-separator-modelling

Separator Modelling Screening

Use this skill for public, educational gas/liquid separator screening examples. It provides simple indicators that help agents structure early questions before moving to validated process simulation or detailed design.

When to Use

• When a user asks for a simple separator capacity screening example.
• When an agent needs a public placeholder model for gas load and liquid residence time.
• When examples must run without confidential separator geometry, project data, or company design rules.

Inputs

• gas_flow: gas volumetric flow rate in a consistent public unit, default examples use m3/h.
• liquid_flow: liquid volumetric flow rate in the same time basis, default examples use m3/h.
• pressure: operating pressure in bar.
• temperature: operating temperature in C.
• gas_density: gas density in kg/m3.
• liquid_density: liquid density in kg/m3.

Outputs

• gas_load_indicator: dimensionless screening load where values above 1.0 indicate high gas load for the placeholder basis.
• residence_time_indicator: dimensionless screening residence indicator where values below 1.0 indicate low liquid residence time for the placeholder basis.
• capacity_warning: ok, watch, or high.
• assumptions: public assumptions used by the placeholder model.

Engineering Method

The Python class SeparatorModel uses open placeholder calculations only:

• gas load indicator increases with gas flow and gas-density square root
• liquid residence time is estimated from a configurable public holdup volume and liquid flow
• warnings are rule-based thresholds on the two indicators

This is educational and screening-only logic. It is not a design standard, separator sizing method, vendor method, or replacement for a validated NeqSim process model.

Python Usage Pattern

from separator_modelling import SeparatorModel

model = SeparatorModel()
result = model.evaluate(
    gas_flow=18_000.0,
    liquid_flow=120.0,
    pressure=55.0,
    temperature=35.0,
    gas_density=18.0,
    liquid_density=720.0,
)

print(result.capacity_warning)
print(result.gas_load_indicator)
print(result.residence_time_indicator)