Wsyzxxn
Mechanical
- Nov 11, 2020
- 4
Hi all, I currently have a project where supply air grilles in several rooms are experiencing condensation. The design is such that outdoor air goes through a 100% fresh air AHU(PAHU) before going through localized FCUs in each room. From my understanding, condensation can be reduced by either reducing the dew point of the air at room condition or raising the surface’s temperature. Would the following methods help to reduce the condensation?
-Increase FCU off-coil temperature (thereby raising the temperature of the supply air grille)
-Reduce PAHU off-coil temperature (to cool and dehumidify outdoor humid air and reduce absolute humidity of the air before it passes through the FCU)
-Reduce the temperature set-point for the room condition (at same RH, the dew point is reduced)
I’m still relatively inexperienced in this, hope more experienced engineers will be able to provide insight as to whether my line of thinking is right.
Thanks all!
-Increase FCU off-coil temperature (thereby raising the temperature of the supply air grille)
-Reduce PAHU off-coil temperature (to cool and dehumidify outdoor humid air and reduce absolute humidity of the air before it passes through the FCU)
-Reduce the temperature set-point for the room condition (at same RH, the dew point is reduced)
I’m still relatively inexperienced in this, hope more experienced engineers will be able to provide insight as to whether my line of thinking is right.
Thanks all!