Technical concept and energy management of the Tampere WtE plant in Finland. IRRC-Waste-to Energy Vienna 1

Transcription

1 Technical concept and energy management of the Tampere WtE plant in Finland IRRC-Waste-to Energy Vienna 1

2 Tampere WtE concept Tampere Regional Solid Waste Management Ltd Tampere Power Utility 3 full-trailer trucks/day from Central Finland MSW t trucks/day wasteload/year Landfill Gas CO Investment 111 M - Employees 19 58,5 MW 42 bar / 402 C 470 GWh Electricity 13 MW / GWh District heat 45 MW / GWh Bottom ash (TOC < 0,5 %) Semi dry flue gas cleaning system - Fly ash 3700 t - APC waste 2800 t t metal recover 2300 t separated mineral fractions are utilized as auxiliary material in concrete and street construction 2

3 Tampere region 500,000 residents Jyväskylä region 150,000 residents MSW produced by 650,000 residents = tons/yr JYVÄSKYLÄ 3

4 New waste collection system has increased recycling rate + 5 % since 2015 Recovery 96% / Disposal 4% 4

5 Tampere Power Utility foresight in energy policy since 1888 The first electric light in the Nordic region was switched on in Tampere, at the Finlayson Cotton Factory One of the first municipally owned power utilities in Europe was founded in The first hydroelectric power plant started in District heating began in A gas pipeline was build from Russia to Tampere in The corporation was privatised in District cooling began in Waste incineration began in

6 Tampere district heating system DC customers: 5,700 buildings 230,000 residents 2,200 GWh DH market share 92% Technical data: Supply temperature Summer 82 C Winter 118 C Return C Delivery of district heat from waste is possible all over the year / Summer load 80 MW 6

7 Tampere WtE project - high-speed project s time schedule waste incineration start up in 4 years time EIA Environmental license & Pre-planning , 19 month Tendering, Building permit and Contracting , 6 month Detail design, Contracting and Construction work , 28 month Commissioning & guarantee tests month Waste incineration start up Commercial production EPCM project: Procurement packages 54 units Building costs 26 million Machines & devices 70 million EPCM costs & others 15 million TOTAL INVESTMENT COST 111 million. 7

8 Control room and Key Performance Indicators for energy management KPI for performance monitoring Energy production Availability: Boiler &waste & turbine Heating value of waste (MJ/kg) 12,0 11,8 11,6 11,4 11,2 11,0 10,8 10,6 10,

9 Tampere WtE plant layout Site and Building Land area of the site m 2 Building volume m 3 Total floor area m 2 The high of the boiler house Production capacity CHP operation net Heat only mode net Internal electricity load Heat storage 2300 m3/100 MWh Maximum heat delivery with heat storage 46 m electricity / heat 12,5 MW / 45 MW 0,5 MW / 57 MW 1,6 MW 15 MW 75 MW 1. Discharge hall 2. Waste bunker 3. Crane 4. Grate boiler 5. Steam turbine 7. Flue gas cleaning 6. Bottom ash bunker 9

10 Waste Bunker 9500 m3 6 days storage capacity total height 32 m below the ground 9 m separate medical waste feeder 10

11 Boiler Boiler Number of Units Throughput per unit Total plant Design heating value of the waste Thermal capacity Grate system Steinmüller Babcock Environment GmbH 1 Unit / Grate system, Boiler and Steam Generator 20 Mg/h Mg/y 10,5 MJ/kg 58,5 MW Air cooled forward moving grate / surface 73 m 2 Type of Boiler Production of steam per unit Steam pressure 4-pass horizontal 73,8 t/h 42 bar Steam temperature 402 C Boiler output/mw: Last 30 days 11

12 Turbine Turbine - Generator 16 MVA Type of turbine Steam parameters MAN Energy Solutions SE District heating turbine with one stage DH-exchanger 40 bar(a),400 C, 22,0 kg/s 12

13 Flue gas cleaning Flue Gas Cleaning Procedure Flue gas volume flow Lühr GmbH Semi dry system Scrubber, upper and lower circulation ESP and SNCR Nm 3 /h humid Nox: mg /Nm 3 versus ammonia l/h SO 2 & HCL versus CaO and CaOH 2 kg Parameter Unit Environmental permit 2013 Measured value Realisation New BAT-AEL for existing plants NO x mg/nm % (SNCR) SO 2 mg/nm ,3 0,6 % 5-40 Dust mg/nm ,1 1,0 % < 2-5 CO mg/nm ,0 16 % TOC mg/nm ,1 1,0 % < 3-10 HCl mg/nm ,1 1,0 % < 2-8 HF mg/nm 3 1 0,001 0,1 % < 1 13

14 Tampere WtE business concept and management Tampere Regional Solid Waste Management - Waste transport and collection - Waste acquisition and intermediate storing - Waste classification and weighing services - Operation of the waste pretreatment plant - Bottom ash treatment and recovery of metals - Public relations and consumer advice on waste management issues Customer Energy from garbage backs Employees 19 Tampere WtE business concept is to incinerate waste at cost price gate fee and to produce low-priced energy for energy company Tampere Power Utility - Power plant operation and maintenance - Company s administrative and financial services - Environmental reporting and reports to authorities 14

15 The benefits of Tampere WtE concept The renewable energy increases more than 20 % The usage of gas reduces from Russia 600 GWh The energy production s CO2-emissions reduces 10 % WtE production is 18 % of to total usage of fuels in Tampere energy production Flexible and fast production controlling possibilities in energy production optimization and management The recycling rate has increased 5% since containers for recyclable glass and metal have been distributed free of charge to Tampere region Tampere WtE concept concept provides an annual added value of 30 million euros to Tampere region and the lowest waste fees in Finland 15

16 TAMMERVOIMA Energy from garbage bags 16