c59da5ca98
Previously each curve file stored x in whatever convention the vendor used (per-element Nm³/h for Jäger/GVA, per-element Sm³/h for PIK/PRK, per-m² for Aerostrip). That meant the diffuser physics couldn't read the data uniformly — selecting Aerostrip vs Jäger would feed wildly different axes to the same interpolator. All five curves now use the same canonical X: specific air flux in Nm³/(h·m² membrane). Y stays SSOTR in g O₂/(Nm³·m); coverage % is the parametric key. Per-file conversions: - jaeger-jetflex-td-65-2-g-epdm-1000: x divided by 0.18 m² perforated area (stated on the data sheet). - gva-elastox-r: x divided by 0.18 m² placeholder mirroring Jäger TD-65 (no real GVA sheet exists — see _meta note). - aerostrip-phoenix: native already in Nm³/(h·m²) — no x change. _meta area normalised to 1.0 m² per "element" so users set `elements` = total installed membrane area in m². - pik300, prk300 (Sulzer ABS 300 mm disc): native was Sm³/h/disc on X and g O₂/(Sm³·m) on Y. Converted to canonical Nm³ basis (DIN-1343) by X × 0.9319 / 0.07, Y × 1.0732. Each disc = 0.07 m² membrane. Supplier naming fixed: pikprk → sulzer, aquaconsult → aquaconsult-entec. PIK = perforated EPDM, PRK = perforated PUR. Config schema: new diffuser.membraneAreaPerElement field (nullable, default null) so a node can override the curve's stored area. When null, specificClass reads _meta.membraneArea_m2_per_element from the resolved curve. 246/246 generalFunctions tests still pass. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
30 lines
1.5 KiB
JSON
30 lines
1.5 KiB
JSON
{
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"_meta": {
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"supplier": "GVA",
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"type": "Tube",
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"model": "ELASTOX-R",
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"membraneArea_m2_per_element": 0.18,
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"membraneArea_m2_per_element_source": "placeholder — mirror of Jäger JetFlex TD-65-2-G EPDM 1000 mm (0.18 m²) until a real GVA ELASTOX-R sheet is supplied. Change here when the real value is known; specificClass reads it from this _meta field.",
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"stdAir": { "temp_C": 0, "pressure_mbar": 1013.25, "RH_pct": 0 },
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"coverageBasis": "bottom-coverage-pct",
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"coverageReference": null,
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"dataQuality": "point",
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"xAxisBasis": "per-m2-membrane-Nm3h",
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"yAxisBasis": "ssotr-g-per-Nm3-per-m",
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"waterDepth_m": null,
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"note": "Migrated 2026-05-12 from nodes/diffuser/src/specificClass.js _loadSpecs(); the legacy '2.4 elements/m²' tag was a prior mis-conversion of the % bottom-coverage convention. Single-coverage point estimate (key '0' = unspecified). Native data was per-element Nm³/h; converted to per-m²-membrane Nm³/(h·m²) by dividing by the placeholder 0.18 m² element area — those numbers will shift the moment we get a real GVA sheet."
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},
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"otr_curve": {
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"0": {
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"x": [11.11, 16.67, 22.22, 27.78, 33.33, 38.89, 44.44, 50.00, 55.56],
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"y": [26, 25, 24, 23.5, 23, 22.75, 22.5, 22.25, 22]
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}
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},
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"p_curve": {
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"0": {
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"x": [11.11, 16.67, 22.22, 27.78, 33.33, 38.89, 44.44, 50.00, 55.56, 61.11, 66.67],
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"y": [40, 42.5, 45, 47.5, 50, 51.5, 53, 54.5, 56, 57.5, 59]
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}
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}
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}
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