Views in the last 30 days: 22
Estimated read time: 2 minute(s)
🌡️ Psychrometric Calculator Suite
DB + WB + Altitude • Mini Chart • RH & Dew Point Tools
Inputs
Results (basis: dry air)
📈 Mini Psychrometric Chart
Axes: Dry-bulb (°C) vs Humidity Ratio (kgw/kgda). Curves: 20–100% RH + saturation at local pressure.
Relative Humidity from pw & pws
Tip
You can get pws at the dry‑bulb using the built‑in saturation routine on Panel 1. Then paste it here to sanity‑check RH from sensor data.
Inputs
Heads‑Up
Wet‑bulb here uses a well‑known approximation that’s typically within ~±0.3 °C for comfort ranges. For critical work, use the DB+WB panel with measured WB.
🌡️ Relative Humidity Calculator
Two quick methods — from Dew Point, or from Wet‑Bulb & Pressure
Inputs
We use saturation vapor pressure at dew point as actual vapor pressure: RH = pw(Td) / pws(T).
Inputs
We use the standard approximate psychrometric relation: pw ≈ pws(Tw) − 0.00066·p·(1+0.00115·Tw)·(T−Tw).
