Radiant Cooling Presentation.pdf

E
Displacement Ventilation
• Continuously purges air pollutants from the occupied space by
supplying 100% fresh air to the space, and exhausting 100 % of the
contaminated air out of the space
• Typical features:
- provides exclusively ventilation function (1-1.5 ach/hr)
- supply air temperature is near space temperature (∆T≤ 3°C/5.5° F)
- air movement is generated by natural buoyancy around heat
sources in the space
- absence of noise and draft due to low air velocities
(≤ 0.2 m/s) (≤ 40 fpm)
- air supply at low level, exhaust at high level
- pollutants are removed from the source and carried straight up
and exhausted at ceiling level
- occupants breath air with minimum contaminant load