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Reference model

Flash separation — a NRTL process flowsheet

An isothermal flash drum at 358 K splitting an ethanol–water feed into ethanol-rich vapor and water-rich liquid products.

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FEED
DRUM
VAP
LIQ
What this showcases
  • Rigorous NRTL thermodynamics, solved by the same engine every simulation runs on.
  • 1 unit operations modeled: DRUM.
  • Focus areas: Flash, VLE, Vapor–liquid split.
  • Verified fast convergence — a real, measured solve time, not an estimate.
Featured in:Water Treatment
Specification
Thermodynamics
NRTL
Components
ethanol, water
Unit operations
DRUM
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Read the step-by-step guide
Python SDK

Reproduce this exact result from Python — the real client.get_example() → run_and_wait() path, not a mockup.

from flowsim.sdk import FlowSimClient

client = FlowSimClient()
example = client.get_example("flash-separation")
sim = client.create_simulation(example["title"], example["flowsheet"])
result = client.run_and_wait(sim["id"])

print(result["status"])              # "converged"
streams = client.streams(sim["id"])

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