Active Chilled Beam Technologies

1. ACTIVE CHILLED BEAM
SYSTEMS (ACB)

2. Air vs Water
1” dia water pipe can deliver the same
cooling as duct 300-350 times its size at the
same fluid temperature

3. Induction Process

4. Air Flow Pattern

5. Lower Energy Consumption
(ASHRAE 90.1)
•Lower Airflow i.e. Lower Fan Power
•Higher Chiller COP
100% Outside Air
•i.e. Healthier Indoor Environment (ASHRAE
62.1)
Building Material Saving ( Glazing& RC)
•Smaller Ductwork ; Reduction in Floor-to-
Floor Slab height
•Can ‘avoid’ false ceiling and maintain
aesthetics
Floor Space Saving
•Smaller AHU Room
•Smaller Cavity & Risers
Higher Thermal Comfort (ASHRAE 55.2)
•Room Air-Velocities within band
•Better distribution of temperature
Extremely Low Noise
Reduced Maintenance & Intrusion on
Tenant
Key Benefits

6.  Reduced fan power :32 % from Base VAV
 Reduced cooling energy :38 % from Base VAV
Energy Savings

7. f.f.l.
200mm
600mm
2900mm
3800mm
100mm
3400mm
2900mm
2’6”
Structural Height
Saving

8. ACB SCHEMATIC

9. ACB SCHEMATIC

10. ACB SCHEMATIC

11. ACB SCHEMATIC

12. ACB SCHEMATIC

13. ACB SCHEMATIC

14. ACB SCHEMATIC

15. AHU ROOM

16. Floor Space Saving
• Conventional 4 AHU design : 1596 ft2 per floor
• Chilled Beam 4 AHU design : 560 ft2 per floor
• For 6 floors (Typical Office), total saving
6 x ( 1596 – 560 ft2 ) : 6216 ft2

17. DUCTING
LAYOUT
ACB = 28 NOS
(OFFICE 4)

18. PIPING LAYOUT
ACB = 28 NOS
(OFFICE 4)