Enter inside and outside temperatures, wind speed and film ventilation area to estimate natural-ventilation cooling capacity and advise on vent opening height and timing.
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Vent temperature window | Open when mild & calm | NY/T 610 |
| Wind speed limit | No roll-up ≥10.8 m/s | NY/T 610 |
| Cooling rate control | ΔT ≤ 5 °C/h | ASABE EP406.4 |
大棚卷膜时间建议工具,根据棚内外温差、风速与棚膜面积,给出通风降温建议、建议通风量与卷膜高度参考,帮助设施农业管理者科学调控棚内环境,避免高温胁迫与损膜风险。