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Ship the Next.js cycle editor with CAD chrome, technical HX symbols, Fixed/Free boundary guidance, and secondary water/air pressure drop support in the solver stack. Co-authored-by: Cursor <cursoragent@cursor.com>
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Drum (separator / recirculation drum)
Config type: "Drum"
Source: crates/components/src/drum.rs
EN
Purpose & model
Liquid/vapor separator used in flooded recirculation architectures. Splits a two-phase feed into liquid and vapor outlets; may accept an evaporator return.
Thermodynamics: equilibrium separation at drum pressure (quality split toward x≈0 liquid / x≈1 vapor legs), mass and energy balances across ports.
Residuals & n_equations()
Multi-port balance residuals (mass + energy + pressure consistency). Exact count depends on active ports and edge wiring; treat as a multi-equation node — see unit tests and n_equations() in source.
Ports (4-port naming)
| Port | Role |
|---|---|
feed_inlet |
two-phase feed |
evaporator_return |
return from flooded evaporator |
liquid_outlet |
liquid to pump / recirculation |
vapor_outlet |
vapor to compressor suction |
Calibration
No primary Z-factor set; geometry/level control may be added in specialized builds.
JSON (main)
| Key | Meaning | Default |
|---|---|---|
fluid / refrigerant |
working fluid | primary |
| level / volume options | if exposed | – |
System note
A flooded plate topology is often Drum + recirculation + DX exchanger — not a mode of BPHX alone. Shell-and-tube flooded use FloodedEvaporator.
FR
But & modèle
Ballon séparateur liquide/vapeur pour architectures noyées / recirculation.
Ports
Alimentation, retour évap, sortie liquide, sortie vapeur.
DoF
Nœud multi-équations ; équilibrer avec le reste du circuit.
JSON
Voir EN.