outdoor_temp_cnumberdefault: 32-10–50 (step 1)Ambient dry-bulb temperature for the analysis snapshot. Use peak summer or winter design day value.
Indoor operative temperature tracks outdoor temperature minus HVAC cooling offset. A +4°C urban heat island effect on outdoor temperature can push PMV from comfortable to uncomfortably warm.
hvac_typeselectdefault: mixed-modenone | natural | mixed-mode | full-acType of heating/cooling system installed. Determines the indoor temperature offset from outdoor conditions.
Natural ventilation provides ~2°C cooling. Mixed-mode (natural + mechanical assist) achieves ~4°C. Full air conditioning maintains setpoint regardless of outdoor temperature.
occupancy_densitynumberdefault: 102–50 (step 1)Floor area per occupant. Low values (high density) increase internal metabolic gains and CO2 concentration.
A crowded space at 5 m²/person adds ~15-20 W/m² of sensible heat gain, potentially raising operative temperature by 1–2°C above HVAC setpoint.
metabolic_rateselectdefault: seatedseated | standing | light-work | activeActivity level of occupants. Higher metabolic rates increase body heat generation and shift the comfortable temperature range downward.
Moving from seated (1.0 met) to light-work (1.6 met) shifts the optimal operative temperature by ~2°C cooler. Active occupants are comfortable at 18–20°C rather than 22–24°C.
clothing_insulationnumberdefault: 0.50.1–2 (step 0.1)Thermal insulation provided by clothing. Summer office wear: 0.5 clo; winter indoor: 1.0 clo; light summer dress: 0.3 clo.
Increasing clothing insulation by 0.5 clo shifts comfort zone by ~3°C cooler. Adaptive clothing policies can shift acceptable temperature range by ±2–3°C.
Run with default settings (hot summer day, mixed-mode HVAC) to see a baseline PMV comfort map. Then test design scenarios: - Switch hvac_type to 'none' to identify buildings at overheating risk - Reduce outdoor_temp_c to simulate a climate-adapted scenario - Increase clothing_insulation to 1.0 for winter assessment PMV > +2 or < -2 indicates unacceptable discomfort. Buildings shown in red require urgent HVAC upgrades or passive cooling measures.