Small scale biomass co-generation Danish experience and perspective

Transcription

1 Small scale biomass co-generation Danish experience and perspective IDA workshop October Henrik Flyver Christiansen Danish Energy Agency

2 DK Follow-up programme Started 1993 continued to 2005 on full load. Process-, fuel-, energy-, environment-, waste water-, ash-, chemical- and economy analysis Monthly data collection Continues reporting. Task group

3 Biomass fuel for CHP PJ 25,0 20,0 15,0 10,0 5,0 0, Amager 1 Amager 2 Avedøre 2 Ensted Masnedø Måbjerg Odense Studstup 3 Studstup 4 Sakskøbing Grenaa Slagelse Rudkøbing Haslev Skive Weiss Dalum papir Græsted Randers Herning Assens Hjordkær Østkraft 6 Harboøre Novopan Junckers tot civ. Ing. Henrik Flyver Christiansen

4 Fundamental consideration Saving reduced consumption Efficiency reduced consumption Renewable energy reorganize production Long term - Biomass become only carbon resources.

5 Unique Danish position Consumption <=> Production National power grid partly storable National natural gas grid partly storable Local district heating storable Transport of fuel / product - storable Information transport storable

6 Power loss in grid Low voltage grid High voltage grid Source Miljørapport 2009, Baggrundsrapport, Energinet.dk

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8 Heat demand 600 Average heat dem and Heat demand One engine Two engines Max. heat No. of days

9 100% 90% 80% 70% Heat consumption ,8 MW 5 MW 10 MW 60% 50% 40% basis load 30% 20% 10% 0% januar februar marts april maj juni juli august september oktober november december

10 Running hours Gasification Steam plant ,8 MW 5 MW 10 MW januar februar marts april maj juni juli august september oktober november december

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12 Operation hours in 2005

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14 Power efficiency in 2005

15 Power consumption in 2005

16 Rudkøbing 2,3 MW steam in 2005

17 Steam Plant. Straw Plant Investment Gasification Plant. Wood

18 Key no. and Plant Investment

19 DK Follow-up programme Some results: Combustion: fuel- and ash handling. Plant guarantee. Plant consumption cut down. Gasification: Tar- and dust measurement. Guarantee for engine. Basis research. Common: Standard for fuel. Standard for preforment test.

20 How to make success Secure delivery of homogeneous fuel Step by step don t do every thing at same time Development takes time often more than 10 years for new technology National network of developer and supplier New plant don t work The staff at the plant Long term program and a lot of money

21 Development of Straw Fired CHP Plants Steam temperature ( C) Has lev 67 bar Rudk øbing 60 bar Slagelse 65 bar N-gas s uperheater Måbjerg 67 bar M asnedø 92 bar EV3 Bio 216 bar Y ear of construction W oodchip fired s uperheater BIOAVV2 310 bar M aribo- Sakskøbing 92 bar