Radiant Cooling Presentation.pdf

Limitations of
E
Conventional All-Air Air HVAC System
• Comfort and IAQ
- uneven space comfort – cost of control zones
- high air velocities - typically > 0.3 m/s (50-100 fpm)
- potentially high noise levels
- portion of contaminated air is mixed and re-circulated
• Cost
- large equipment capacities required
- moving large air volumes ⇒ energy intensive operation
- large space requirements
- higher mechanical equipment and building space cost