Digesters - Metropolitan Water Reclamation District of Greater Chicago

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Heating Energy ConsumptionCurrent• From 2007 – 2009 plant data• Heating Demand: 40 [mmBtu/hr ] (summer)120 [mmBtu/hr] (winter)87 [mmBtu/hr] (average)Adjustments for 2040 Heating Energy Consumption• Additional flow to digesters• Addition of new facilitiesFuture Heating Demand• Summer: 30 (Digesters) + 20 (Buildings) = 50 [mmBtu/hr]• Winter: 48 (Digesters) + 87 (Buildings) = 135 [mmBtu/hr]• Average: 39 (Digesters) + 60 (Buildings) = 99 [mmBtu/hr]
Page 1 and 2: Digester Gas Utilization at SWRPWhe
Page 3: Presentation Outline• Background/
Page 9 and 10: Projected Digester PerformanceVSR
Page 12 and 13: Digester Gas Production - Modeling
Page 15: Energy Consumption at SWRP• Build
Page 25 and 26: Energy Flow Model• Outputs = Annu
Page 27 and 28: Model Components - Gas Production
Page 29 and 30: Model Components - Gas Utilization
Page 31 and 32: Model Components - Natural Gas Inpu
Page 33 and 34: Energy Flow Model - Baseline• 201
Page 35 and 36: 150,000100,000GHG reduction (MT eCO
Page 37 and 38: Selected Scenarios for Further Eval
Page 39 and 40: Steam Turbine Operation Alternative
Page 41 and 42: Advanced Energy Flow Model Results1
Page 44 and 45: Year 2016 ‐2035Capital cost and a
Page 46 and 47: Large WWTP Reference InstallationsO
Page 48 and 49: Calls and Field Visits - Engines•
Page 50 and 51: Recommended Utilization SystemSteam
Page 52 and 53: Questions
Page 54 and 55: Energy Flow Modeling• Different O
Page 56: Model Components- Capital Cost Annu

Digesters - Metropolitan Water Reclamation District of Greater Chicago

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