• Case Study Icons-10

    Facility Bio

    • Cookeville, TN
    • Central CHW plant serves 44 buildings
    • Three (3) Trane constant speed chillers, 1 with integral HEX bundle
    • 4,500 tons cooling capacity
    • Unmanned operation during warmer months, cooling ~ 8 months/year

     

  • Case Study Icons-08

    Situation

    • Traditional Primary-Secondary hydronic system
    • Low CHW ΔT, high kW/ton
    • Andover control system, no optimization sequence
    • No coordination between buildings and central plant
  • Solution

    • Convert to full variable flow using Integrated Primary- Secondary® system design
    • Implement tekWorx PLC-based adaptive Control Engine Optimization® solution
    • Integrate with campus BAS to coordinate building and CUP pumping operation

Results That Exceed Client Expectations

  • Financial Results

    • $75,000 in annual energy savings
    • 2-year project payback
  • Energy Impact

    • 1,000,000 kWh saved annually
    • .25 kW/ton efficiency improvement
  • Operational Benefits

    • Improved CHW flow enabled higher building space temperatures
    • Pumps running in most efficient range, reduced wear and maintenance
    • Remote monitoring makes troubleshooting faster and less expensive

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