ACTIVE CHILLED BEAM SYSTEMS (ACB)

Air vs Water

1” dia water pipe can deliver the same cooling as duct 300-350 times its size at the

same fluid temperature

Induction Process

Air Flow Pattern

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

Reduced fan power :32 % from Base VAV

Reduced cooling energy :38 % from Base VAV

Energy Savings

f.f.l.200mm

600mm

2900mm

3800mm

100mm

3400mm

2900mm

2’6”

Structural Height Saving

ACB SCHEMATIC

ACB SCHEMATIC

ACB SCHEMATIC

ACB SCHEMATIC

ACB SCHEMATIC

ACB SCHEMATIC

ACB SCHEMATIC

AHU ROOM

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

DUCTING LAYOUT

ACB = 28 NOS(OFFICE 4)

PIPING LAYOUT

ACB = 28 NOS(OFFICE 4)