Acb presentation
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Transcript of Acb presentation
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)