Digesters - Metropolitan Water Reclamation District of Greater Chicago

More documents

Recommendations

Info

Model Components – Gas Cleanings H2S Cleaning H2S + Siloxane CleaningRaw Gas OFF ON21 mmBtu/hr 0 147.5 mmBtu/hrmmBtu/hr• Turn H 2 S and Siloxane cleaning ON/OFF• Capital and O&M cost for cleaning scaled to amount ofdigester gas received• Cleaning affects downstream maintenance costs• Cleaning affects downstream equipment performance
Model Components – Gas Utilization OptionsGas to Alternative Utilization OK148 mmBtu/hr 148 gas to compressors 83% efficientMBMFacilityON DG to MBM Engines Gas Turbines Steam TurbinesAvg load OFF ON OFF OFF150 dtpd 148 Simple 050 mmBtu/hr total mmBtu/hr 0 mmBtu/hr0 mmBtu/hr DIG Gas mmBtu/hrDIGsmmBtu/hr OFF ElectricityHot Water to DIGs 433,681 Electricity Electricity64 mmBtu/hr kW‐hrs/day 0 0kW‐hrs/daykW‐hrs/day• MBM turned ON/OFF at varying solids loads• Cogen systems turned ON/OFF and can receive varying digestergas amounts• Capital and variable O&M cost for cogen are calculated andscaled to amount of digester gas received• Cogen performance parameters determine electrical productionand heat recovery• Heat recovered as either steam or hot waterHighPressure
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 and 16: Energy Consumption at SWRP• Build
Page 24 and 25: Energy Flow Scenarios:Digester Gas?
Page 26 and 27: Energy Flow Modeling Framework26
Page 30 and 31: Model Components - Plant Energy Dem
Page 32 and 33: Projecting Future Energy Prices•
Page 34 and 35: Energy Flow Model - ScenariosScenar
Page 36 and 37: Energy Flow Model - Results$2,000,0
Page 38 and 39: Engine Operation Alternatives• Ba
Page 40 and 41: Updated Model Parameters• New Per
Page 42: Sensitivity Analysis - Electricity
Page 45 and 46: Triple Bottom Line Analysis• Econ
Page 47 and 48: Other Reference InstallationsMetrop
Page 49 and 50: Calls and Field Visits - Steam Turb
Page 51 and 52: Conclusions/Discussion• A Combine
Page 53 and 54: Sizing of Cogeneration SystemsCogen
Page 55 and 56: Triple Bottom Line ScoringScenario

Digesters - Metropolitan Water Reclamation District of Greater Chicago

Create successful ePaper yourself

Delete template?

Save as template?