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2026-07-17 22:46:46 +02:00

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ScrewEconomizerCompressor / ScrewCompressor

Config types: "ScrewEconomizerCompressor", "ScrewCompressor"
Source: crates/components/src/screw_economizer_compressor.rs
Polynomials: Polynomial2D bilinear SST/SDT


EN

Purpose

Twin-screw compressor with economizer injection port. Manufacturer performance as bi-quadratic (bilinear) maps of SST and SDT.

Performance maps

ṁ_suction = z_flow · (a00 + a10·SST + a01·SDT + a11·SST·SDT)
Ẇ_shaft   = z_power · (b00 + b10·SST + b01·SDT + b11·SST·SDT)
ṁ_eco     ≈ eco_fraction · ṁ_suction   (or eco poly)

JSON coefficient names (CLI):

Mass flow Power
mf_a00, mf_a10, mf_a01, mf_a11 pw_b00, pw_b10, pw_b01, pw_b11

Built-in presets

preset Meaning
bitzer_generic_200kw Bitzer-like ~200 kW R134a map
grasso_generic_200kw Grasso-like ~200 kW map
(empty) generic defaults

Explicit mf_* / pw_* override preset values.

Ports

Port Role
suction / inlet main suction
discharge / outlet discharge
economizer / eco intermediate injection

Other parameters

Key Meaning Default
frequency_hz drive frequency 50
nominal_frequency_hz rated f 50
mechanical_efficiency η_mech 0.92
economizer_fraction eco flow share from preset

Calibration Z

Factor Default
z_flow 1.0
z_flow_eco 1.0
z_power 1.0
z_etav 1.0

UI

  • Tab General: frequency, efficiency, preset
  • Tab Map (polynomials): mf_a** / pw_b** with defaults filled from preset
  • Help documents the bilinear formula

FR

But

Compresseur à vis 3 ports + injection économiseur.

Carte

Polynôme bilinéaire SST/SDT pour ṁ et puissance. Presets Bitzer / Grasso.

Coeffs JSON

mf_a00…a11 (débit), pw_b00…b11 (puissance).

Calibration

Z = 1 par défaut.

Ports

Aspiration, refoulement, économiseur.