sepehr
3358b74342
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>
1.3 KiB
HeatExchanger (generic)
Config type: "HeatExchanger"
Source: crates/components/src/heat_exchanger/exchanger.rs + ε-NTU / LMTD models
EN
Purpose & model
Generic two-stream HX with selectable model:
- ε-NTU effectiveness
- LMTD / counterflow forms
Ports: hot_in/out, cold_in/out (Modelica-style 4-port).
NTU = UA / C_min
ε = f(NTU, C_r, flow arrangement)
Q = ε · C_min · (T_hot,in − T_cold,in)
Requires live four-port edge state for residual evaluation on the generic path — inlet-only scalar BCs do not invent outlet states.
Residuals & n_equations()
Inner model residual count (often 2–3 per side balance depending on configuration).
Ports
| Port | Role |
|---|---|
hot_inlet / hot_outlet |
hot stream |
cold_inlet / cold_outlet |
cold stream |
Calibration
z_ua on UA (default 1.0).
When not to use
For refrigeration condensers/evaporators prefer specialized Condenser / Evaporator / FloodedEvaporator / BPHX which know phase-change ε-NTU and secondary dual modes.
FR
But
Échangeur générique 4 ports (ε-NTU / LMTD).
Attention
Exige un état 4 ports live. Pour frigo, préférer Condenser / Evaporator / Flooded / BPHX.
Calibration
Z_UA = 1 par défaut.