Khalim Conn-Kowlessar db4f1b3167 Slice S0380.66: SAP 10.2 Appendix H solar HW pure math module (HW path) ... New module `domain/sap10_calculator/worksheet/appendix_h_solar.py` implements line refs (H10), (H11), (H14)..(H16), (H17)..(H24) for the hot-water solar contribution path. The space-heating path (H25)..(H29) is deferred until a fixture exercises it — cert 000565 lodges solar HW only (worksheet line 414 H29=0 across all months). Algorithm per SAP 10.2 specification §Appendix H pages 74-78 (14-03-2025 revision). The monthly procedure follows EN 15316-4-3:2017: the collector + cylinder + demand parameters feed dimensionless X and Y ratios into Equation H1 with Table H3 (p.78) correlation factors: Q_s,w = (Ca·Y + Cb·X + Cc·Y² + Cd·X² + Ce·Y³ + Cf·X³) × (H17)m clamped to [0, (H17)m] per spec p.76. Cert 000565 worksheet line 415 shows total Q_s,w = 281.3478 kWh/year delivered to HW from a 3 m² flat-plate collector + 53 L dedicated solar storage in a 160 L combined cylinder, W orientation, 30° pitch, Thames Valley region. Helpers implemented: - `overall_heat_loss_coefficient_h10` — 5 + 0.5×(H1) or test-cert - `loop_heat_loss_coefficient_h11` — (H3) + 40·(H4) + (H10)/(H1) - `effective_solar_volume_h14` — separate / combined cylinder - `reference_volume_h15` — 75 × (H1) - `storage_tank_correction_coefficient_h16` — [(H15)/(H14)]^0.25 - `hot_water_demand_monthly_h17_kwh` — (62)m − (63a)m - `proportion_solar_to_hot_water_monthly_h18` — HW-only/SH-only/blend - `hot_water_reference_temperature_h20_c` — 55 + 3.86·Tcold − 1.32·Te - `hot_water_reference_temperature_difference_h21_c` — (H20) − (96) - `hot_water_factor_x_monthly_h22` — clamp [0, 18] - `hot_water_factor_y_monthly_h23` — clamp ≥ 0 - `heat_delivered_to_hot_water_monthly_h24_kwh` — Equation H1 + clamp [0, (H17)m] 18 unit tests cover: - Spec-default vs test-certificate (H10) - Cert 000565 worksheet pinned (H11) ≈ 6.5667 (line 407) - Cert 000565 worksheet pinned (H14) = 85.1 (line 410) - Cert 000565 worksheet pinned (H15) = 225 (line 411) - Cert 000565 worksheet pinned (H16) ≈ 1.2752 (line 412) - Separate-tank vs combined-cylinder branches of (H14) - All three branches of (H18) (HW-only, SH-only, blend formula) - (H20)/(H21) spec formulas verbatim - (H22) zero-demand short-circuit + upper clamp at 18 - (H23) negative-input lower clamp at 0 - (H24) Equation H1 polynomial with Table H3 factors - (H24) demand-cap clamp when Y dominates positive - (H24) zero-floor clamp when X dominates negative Scope EXCLUDES (deferred to follow-on slices): - Appendix U §U3.3 monthly solar radiation lookup for the collector's orientation/tilt → (H7)m → (H9)m - Solar SH path (H25-H29) - Appendix H §H2 primary-loss reduction Table H4 - EpcPropertyData solar collector field schema additions - Elmhurst + API extractor / mapper updates - Cascade integration via `water_heating_from_cert.solar_monthly_kwh` Pyright: 0 errors on both touched files. 275 pass + 9 expected 000565 cascade-gap fails on the handover test suite (unchanged from S0380.65). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>		2026-05-29 09:41:22 +00:00
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addresses	get rid of comments	2026-05-20 13:21:11 +00:00
sap10_calculator	Slice S0380.66: SAP 10.2 Appendix H solar HW pure math module (HW path)	2026-05-29 09:41:22 +00:00
sap10_ml	Slice S0380.26: RdSAP10 §5.8 dry-lining adjustment on alt walls — closes cert 7700 -0.44 → +5e-5	2026-05-28 10:56:11 +00:00
tasks	added postcode splitter rewrite to ddd	2026-05-19 16:35:09 +00:00
postcode.py	get rid of comments	2026-05-20 13:21:11 +00:00