A simpler (valid –40°C to 50°C) is often sufficient for typical HVAC work:
=0.62198 * (B6 / (B5 - B6))
RH = (Pw / Pws) * 100
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: Calculates the sensible and latent power involved in cooling air to near saturation. Heating/Reheating A simpler (valid –40°C to 50°C) is often