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c0afe3592f
Ninth slice of the SAP10 Calculator Session A (ADR-0009). Ships
monthly_heat_requirement_kwh implementing the Table 9c step-10 formula:
L_m = H × (T_i,m − T_e,m) (W)
Q_heat,m = 0.024 × (L_m − η_m × G_m) × n_m (kWh)
with the table's clamp: Q_heat is set to 0 when negative or below 1 kWh
per month (summer months and well-insulated dwellings in shoulder
months).
The orchestrator (S-A6) iterates utilisation factor + mean internal
temperature until they converge before calling this function.
5 AAA cycles cover: typical-winter-month hand-computed worked example,
summer month with gains exceeding losses clamping to 0, gains-scaling
direction check, external-temperature direction check, and the sub-1-kWh
clamp per the Table 9c note.
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| src/domain | ||
| pyproject.toml | ||
| README.md | ||
domna-domain
Shared domain types — Property, Properties, BaselinePerformance, Plan, PlanPhase, Scenario, ScenarioPhase, ScenarioSnapshot, Recommendation, OptimisedPackage, EpcPropertyData, etc.
Boundary: types only. No persistence, no IO, no business logic. Other packages and services depend on domna-domain; this package depends on nothing internal.
Domain definitions live in ../../CONTEXT.md. New types added here must match the glossary terms.
Layout
src/domain/
├── __init__.py
├── property.py # Property, Properties, PropertyIdentity
├── site_notes.py
├── landlord_overrides.py
├── baseline_performance.py # lodged + effective pair (ADR-0004)
├── plan.py # Plan, PlanPhase, OptimisedPackage
├── scenario.py # Scenario, ScenarioPhase, ScenarioSnapshot (ADR-0005)
├── recommendation.py
├── geospatial.py
├── solar.py
├── anomaly_flags.py
└── ml/
├── __init__.py
├── transform.py # EpcMlTransform (versioned per §8.3)
└── schema.py
When datatypes/epc/domain/ folds in, the EPC schema types move under src/domain/epc/.