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>
3.4 KiB
Compressor (AHRI 540 + maps)
Config type: "Compressor"
Source: crates/components/src/compressor.rs
Related: polynomials.rs (Polynomial2D), registry SstSdt model variant
EN
Purpose
Positive-displacement compressor performance from published coefficient maps:
- AHRI 540 (CLI default for
"Compressor") — 10 coefficients M1–M10 - SST/SDT polynomial (API / registry) — 2D polynomials ṁ(SST,SDT), Ẇ(SST,SDT)
Model A — AHRI 540
Mass flow [kg/s]:
ṁ = M1 · (1 − (P_suc / P_dis)^(1/M2)) · ρ_suc · V_disp · N/60
Power cooling [W]:
Ẇ = M3 + M4 · (P_dis/P_suc) + M5 · T_suc + M6 · T_dis
Power heating [W]:
Ẇ = M7 + M8 · (P_dis/P_suc) + M9 · T_suc + M10 · T_dis
| Coeff | Role | Typical CLI default |
|---|---|---|
| M1 | flow scale | 0.85 |
| M2 | PR exponent (>0) | 2.5 |
| M3–M6 | cooling power poly | 500, 1500, −2.5, 1.8 |
| M7–M10 | heating power poly | 600, 1600, −3.0, 2.0 |
Also required: speed_rpm, displacement_m3, efficiency (isentropic / overall as used by the arm).
Model B — SST/SDT polynomial (same Compressor type)
Select with JSON / UI: "model_type": "SstSdt" (aliases: SstSdtPolynomial, sst_sdt).
ṁ = Σ a_ij · SST^i · SDT^j [kg/s] (SST, SDT in Kelvin)
Ẇ = Σ b_ij · SST^i · SDT^j [W]
Bilinear form (CLI / UI coefficients):
ṁ = a00 + a10·SST + a01·SDT + a11·SST·SDT
Ẇ = b00 + b10·SST + b01·SDT + b11·SST·SDT
| JSON key | Role | Default (example) |
|---|---|---|
mf_a00 … mf_a11 |
mass-flow bilinear | 0.05, 0.001, 0.0005, 1e−5 |
pw_b00 … pw_b11 |
power bilinear | 1000, 50, 30, 0.5 |
Also used by ScrewEconomizerCompressor (same bilinear form + eco fraction + presets Bitzer/Grasso).
Residuals / ports
Two-port suction/discharge. Residual count depends on same-branch mass and model wiring (typically flow + energy).
Calibration
| Factor | Default | Effect |
|---|---|---|
z_flow |
1.0 | scales ṁ |
z_power |
1.0 | scales Ẇ |
JSON (CLI "Compressor")
| Key | Meaning | Default |
|---|---|---|
model_type |
Ahri540 | SstSdt |
Ahri540 |
speed_rpm |
speed | required |
displacement_m3 |
displacement | required |
efficiency |
efficiency | 0.85 |
fluid |
refrigerant | required |
m1 … m10 |
AHRI coeffs (if Ahri540) | see table |
mf_a00…mf_a11, pw_b00…pw_b11 |
SST/SDT bilinear (if SstSdt) | see table |
p_suction_bar / h_suction_kj_kg |
init ports | 3.5 / 400 |
p_discharge_bar / h_discharge_kj_kg |
init ports | 12 / 440 |
UI guidance
- Modèle de carte : bascule Ahri540 ↔ SstSdt
- Sections AHRI 540 ou Map SST/SDT selon le choix
- Section Machine : speed, displacement, efficiency
- L’IsentropicCompressor est un modèle physique différent (η_is + cylindrée)
FR
But
Compresseur à cartes de performance constructeur.
AHRI 540
ṁ = M1 · (1 − (P_s/P_d)^{1/M2}) · ρ · V · N/60
Ẇ = M3 + M4·PR + M5·T_s + M6·T_d (froid)
Polynôme SST/SDT
ṁ, Ẇ = polynôme 2D en SST et SDT
(Utilisé surtout sur le vis ; presets Bitzer/Grasso.)
Calibration
z_flow, z_power = 1.0 par défaut.
JSON
Voir tableau EN (m1…m10, speed_rpm, displacement_m3).