Humidity: is the concentration of water vapour present in the air, and it can be expressed in different parameters such as:
•Humidity Ratio (W)
•Specific Humidity (γ)
•Absolute Humidity (AW or dv)
•Saturated Humidity Ratio (Ws)
•Dew Point (DP)
•Wet Bulb Temperature (WB)
•Relative Humidity (ɸ) or (RH%)
*Refer to 2017 ASHRAE Handbook Fundamentals, Chapter 1 for more details
Humidity control is applying one or more psychrometric process to increase or decrease the moisture content in the air to achieve desired relative humidity at a specified design temperature.
To learn more about Psychrometric processes, feel free to download the below training course
Why Humidity Control is essential in HVAC Design?
Achieve people comfort and improve health
Reduce Bacteria and fungi growth
Prevent unwanted condensation
Prevent material damage
Protect Building structure integrity and save renovation cost.
Control static electricity
Ensure Correct operation of machinery
Enable certain industrial processes
Enable complicated operations and surgeries
Increase productivity
Save Energy and money
Reduce water consumption