Application instructions
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Hydromette BL Compact TF 3
4.2.1
Dew point
The dew point is the temperature at which the air is saturated with
water vapour. Condensation occurs below this temperature. The
dew point generally lies below the air temperature, except with
100% r.h, where both temperatures are the same.
The dew point is dependent on the air temperature and water
vapour partial pressure and equal to the temperature whose
saturation pressure is equal to the water vapour partial pressure
present. The water vapour partial pressure is calculated as follows:
𝑊𝑎𝑡𝑒𝑟 𝑣𝑎𝑝𝑜𝑟𝑒 𝑝𝑟𝑒𝑠𝑠𝑢𝑟𝑒 =
𝑟𝑒𝑙. ℎ𝑢𝑚𝑖𝑑𝑖𝑡𝑦 𝑥 𝑠𝑎𝑡. 𝑤𝑎𝑡𝑒𝑟 𝑣𝑎𝑝𝑜𝑢𝑟 𝑝𝑟𝑒𝑠𝑠.
100
Further information can be found in the Internet.