The City of Atlanta Energy Conservation Program

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The City of AtlantaEnergy Conservation Program
Energy-efficient Chiller RetrofitAtlanta Civic
Center
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Overview

• The Atlanta Civic Center, built in 1967, uses
  two (2) 350-ton chillers to cool the building,
  including the 4,600 seat performing arts
  auditorium.
• An average sized home in Georgia would require
  2-4 tons of cooling.

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Atlanta Civic Center
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The Challenge

• Chillers have an expected life of about twenty
  (20) years.
• The Civic Center chillers were thirty- seven
  (37) years old!
• It was time for a replacement.

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Original Chiller
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Energy Conservation Program

• In 2004, the Energy Conservation Program
  conducted an energy audit of the Atlanta Civic
  Center, one of the City of Atlantas largest
  facilities.
• The ECP helped the Civic Center select an energy
  efficient, environmentally-friendly chiller.

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Chiller Retrofit

• Original Chiller
• Energy hog
• Single speed motor
• Manual controls
• CFC-based refrigerant

• New Chiller
• Uses 40 less energy
• Variable speed drive
• Automated controls
• Ozone friendly refrigerant

Total Expected Savings 15,000/year
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New Chiller
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A Happy Facility Manager
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Cooling Tower

• The cooling towers were also replaced during the
  retrofit.
• New features included
• Variable speed drives
• Sand filter
• Efficient fan blades

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New Cooling Towers
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Efficient Fan Motors
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Sand Filter and VFD
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Efficient Fan Blades
based on blades designed for submarines!
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Energy Stars!

• Ann Marie Moraitakis, Director Civic Center
• Rob Lung,
• Facility Supervisor

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For More Information

• Environmental Manager
• Benjamin Taube
• 404.330.6752
• btaube_at_atlantaga.gov

• Energy Conservation Program Manager
• Cyrus Bhedwar
• 404.330.6834
• chbhedwar_at_atlantaga.gov