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AWAST WORKSHOP HOMEWORK PRESENTATION MFA CHANNEL 3: THERMAL TREATMENT PROFESSOR K. SANDVIK

AWAST WORKSHOP HOMEWORK PRESENTATION MFA CHANNEL 3: THERMAL TREATMENT PROFESSOR K. SANDVIK. Norwegian University of Science and Technology. GOODS & PROCESSES - DIFFERENCES BETWEEN SUGGESTIONS. MI Municipal solid waste incineration plant FI Fluidized bed incineration plant CK Cement kiln

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AWAST WORKSHOP HOMEWORK PRESENTATION MFA CHANNEL 3: THERMAL TREATMENT PROFESSOR K. SANDVIK

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  1. AWAST WORKSHOP HOMEWORK PRESENTATION MFA CHANNEL 3: THERMAL TREATMENT PROFESSOR K. SANDVIK Norwegian University of Science and Technology

  2. GOODS & PROCESSES - DIFFERENCES BETWEEN SUGGESTIONS MI Municipal solid waste incineration plant FI Fluidized bed incineration plant CK Cement kiln OI Other incineration plant GI Grate incineration FBI Fluidized bed incineration CKI Cement kiln incineration OI Other incineration (Yellow shows original suggestions)

  3. MASS FLOW DATA - INTRODUCTION HEIMDAL HEATING CENTRAL, TRONDHEIM • One of the largest MSW incinerators in Norway • Two lines, each with a capacity of 6.5 tonne/hour • Furnaces: moving grate units, delivered by VonRoll • In 1996, a total of 85 600 tonne of MSW was incine- rated, with a heat prod. equivalent to 222 GWh • Receives waste from 250 000 people DATA • From 1996 • Best match with population

  4. MASS FLOW DATA - INTRODUCTION HEIMDAL HEATING CENTRAL - SKETCH OF THE WASTE INCINERATOR

  5. MASS FLOW DATA - MASS FLOWS (T/YEAR) THROUGH THE SYSTEM HEIMDAL HEATING CENTRAL - 1996 1 138 297.9 Air 1 375 468.4 Cleaned flue gas 350 Ca(OH)2 85 645 COMBUSTION BOTTOM ASH COOLING 1 209 811.5 1 209 177.7 16 854.4 51.4 Waste DRY FILTERING WET SCRUBBING WATER TREATMENT Flue gas Flue gas Waste water Filter cake 4 881.8 Water 19 013.2 Bottom ash 633.8 Filter dust 183 145.1 Water 17 153 Cleaned waste water

  6. MASS FLOW DATA - MASS FLOWS (KG/CAPITA & YEAR) THROUGH THE SYSTEM HEIMDAL HEATING CENTRAL - 1996 4 553.2 Air 5501.9 Cleaned flue gas 1.4 Ca(OH)2 342.6 COMBUSTION BOTTOM ASH COOLING 4839.2 4836.7 67.4 0.2 Waste DRY FILTERING WET SCRUBBING WATER TREATMENT Flue gas Flue gas Waste water Filter cake 19.5 Water 76.1 Bottom ash 2.5 Filter dust 732.6 Water 68.6 Cleaned waste water

  7. MASS FLOW DATA - TRANSFER COEFFICIENTS FOR WASTE 0.8274 Cleaned flue gas Filter cake 0.0002 Input waste HEIMDAL HEATING CENTRAL 1.0 Filter dust 0.0074 Bottom ash Note! 0.165 • Water excluded in bottom ash and filter cake • Filter dust assumed to contain water from waste

  8. MASS FLOW DATA - TRANSFER COEFFICIENTS FOR WATER 0.8931 Cleaned flue gas Filter cake 0.0002 Water HEIMDAL HEATING CENTRAL 1.0 Filter dust 0.0015 Bottom ash Cleaned waste water Note! 0.0233 0.0819 • Assuming a water content of ca. 25, 26, 67, and 50 wt% in waste, bottom ash, filter cake and filter dust, respectively

  9. MASS FLOW DATA - INTRODUCTION ENERGOS AVERØY ENERGY PLANT • Fuel consumption: 30 000 t/year • Fuel: MSW, RDF • Boiler capacity: 10,8 MW • Steam supply: 35 GWh • Electrical power: 8,3 GWh • Fuel from ten municipalities (90 000 people) • Startup: 2000

  10. MASS FLOW DATA - INTRODUCTION ENERGOS AVERØY ENERGY PLANT - SKETCH OF THE WASTE INCINERATOR 1. Silo 2. Fuel magazine 3. Feeder 4. Oven 5. Boiler 6. To energy receptacle 7. Reactor 8. Filter 9. Pipe

  11. MASS FLOW DATA - MASS FLOWS (T/YEAR) THROUGH THE SYSTEM ENERGOS AVERØY ENERGY PLANT - FIRST YEAR (2000) 137 696.7 Air 154 562.2 Flue gas 3.4 18 750 COMBUSTION BOTTOM ASH COOLING 154 909.1 Active C Waste DRY FILTERING Flue gas 575 1 025 Ca(OH)2 Water 2562.6 Bottom ash 925.3 Filter dust HEIMDAL HEATING CENTRAL - 1996

  12. MASS FLOW DATA - MASS FLOWS (KG/CAPITA & YEAR) THROUGH THE SYSTEM ENERGOS AVERØY ENERGY PLANT - FIRST YEAR (2000) 1 530 Air 1 717.4 Flue gas 0.04 208.3 COMBUSTION BOTTOM ASH COOLING 1 721.2 Active C Waste DRY FILTERING Flue gas 6.4 11.4 Ca(OH)2 Water 28.5 Bottom ash 10.3 Filter dust HEIMDAL HEATING CENTRAL - 1996

  13. MASS FLOW DATA - TRANSFER COEFFICIENTS FOR WASTE 0.899 Cleaned flue gas Waste ENERGOS AVERØY ENERGY PLANT Filter dust 1.0 0.019 Bottom ash Note! 0.082 • Water excluded in bottom ash • Filter dust assumed to contain water from waste

  14. MASS FLOW DATA - TRANSFER COEFFICIENTS FOR WATER 0.86 Cleaned flue gas Water ENERGOS AVERØY ENERGY PLANT 1.0 Note! Bottom ash 0.14 • Assuming a water content of ca. 34 and 40 wt% in waste, bottom ash and filter dust, respectively

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