Moisture balance
Ongoing vapour generation and an estimate of dehumidification demand.
Inputs
- Required water removal
- 3.09 l/h
- Required removal over 24 h
- 74.18 l
- Water removed by ventilation
- 1.91 l/h
- Indoor humidity ratio
- 12.9 g/kg
- Outdoor humidity ratio
- 7.41 g/kg
Ventilation does not add moisture in these conditions.
Sent only with your enquiry. The original CSV is not attached.
Steady-state balance with constant conditions for 24 hours. Enter ongoing vapour generation, not water already in the air. Flow is actual exhaust at indoor conditions. We use humidity ratio and dry-air mass; 1 kg water ≈ 1 litre. Leakage, storage and equipment margins are excluded.
How we calculate
w = 0.621945 × e / (p − e); ṁdry = Q × (p − eᵢ) / (Rdry × Tᵢ[K]); removal = max(0, vapour − ṁdry × (wᵢ − wₒ))Method source ↗