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This commit is contained in:
fraxle
2026-05-15 10:39:09 +01:00
parent 5b0e62d1b5
commit 01d939933a
7 changed files with 605 additions and 176 deletions
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assets/js/utils.js
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@@ -10,6 +10,7 @@
// sunburnMinutes(uv, skinType) minutes to MED
// burnLabel(mins) formats burn time as "12m"/"1.5h"
// VEHICLE_TYPES vehicle presets for cabin heat model
// BUILDING_TYPES building presets for indoor heat model
// cloudCategory(total,low,mid,high) → 'clear'|'wispy'|'scattered'|'overcast'
// confidenceBand(i) day-tab gradient + label
// moonPhaseFraction(date) 0..1 synodic phase
@@ -140,6 +141,36 @@ export const VEHICLE_TYPES = {
caravan: { name: 'Caravan (towed)', albedo: 0.40, glazingArea: 0.4, hCabinLoss: 1.0 },
};
// ═══════════════════════════════════════════════════════════════════
// BUILDING TYPES — presets for the indoor temperature model.
// ───────────────────────────────────────────────────────────────────
// Each preset drives both calcIndoorTempPass and calcManagedIndoorTempPass.
//
// uWall W/m²K Effective envelope U-value. Higher = faster response
// to outdoor swings, less insulation.
// lagHours h Thermal mass time constant. Heavier construction = longer
// lag before indoor temp follows outdoor changes.
// glazingRatio — Fraction of floor area that is window. More glass = more
// solar gain in summer, more heat loss in winter.
// gValue — Solar heat gain coefficient of glazing. 0.63 = standard
// double glazing; 0.3 = modern low-e triple.
// orientFactor — Fraction of windows facing the sun at any given time.
// 0.5 = random orientation; 0.8 = south-facing conservatory.
// curtainBlock — Fraction of solar gain blocked when managed (curtains
// closed). Thick lined curtains ≈ 0.80; blinds ≈ 0.50.
// ventAlpha — Blending weight per hour when smart ventilation is open.
// Higher = more air changes per hour.
// ═══════════════════════════════════════════════════════════════════
export const BUILDING_TYPES = {
brick: { name: 'Brick (typical)', uWall: 0.35, lagHours: 4, glazingRatio: 0.16, gValue: 0.63, orientFactor: 0.50, curtainBlock: 0.80, ventAlpha: 0.25 },
modern: { name: 'Modern / Well insulated', uWall: 0.18, lagHours: 5, glazingRatio: 0.20, gValue: 0.30, orientFactor: 0.50, curtainBlock: 0.70, ventAlpha: 0.20 },
victorian: { name: 'Victorian Terrace', uWall: 0.55, lagHours: 5, glazingRatio: 0.12, gValue: 0.63, orientFactor: 0.50, curtainBlock: 0.80, ventAlpha: 0.30 },
stone: { name: 'Stone / Granite Cottage', uWall: 0.45, lagHours: 7, glazingRatio: 0.10, gValue: 0.63, orientFactor: 0.50, curtainBlock: 0.75, ventAlpha: 0.25 },
timber: { name: 'Timber Frame / New Build', uWall: 0.22, lagHours: 2, glazingRatio: 0.22, gValue: 0.35, orientFactor: 0.50, curtainBlock: 0.70, ventAlpha: 0.35 },
flat: { name: 'Top-floor Flat', uWall: 0.40, lagHours: 3, glazingRatio: 0.18, gValue: 0.63, orientFactor: 0.50, curtainBlock: 0.75, ventAlpha: 0.20 },
conservatory:{ name: 'Conservatory / Sun Room', uWall: 1.20, lagHours: 1, glazingRatio: 0.70, gValue: 0.72, orientFactor: 0.70, curtainBlock: 0.50, ventAlpha: 0.50 },
};
// ═══════════════════════════════════════════════════════════════════
// CLOUD CATEGORY — pick one of 4 icon styles from low/mid/high split.
// ───────────────────────────────────────────────────────────────────