reed canary grass as an energy crop håkan Örberg unit of biomass technology and chemistry
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Reed canary grass as an energy crop Håkan Örberg Unit of biomass technology and chemistry. Reed Canary Grass research at SLU/BTK Establishing crop Crop treatment Harvesting and transport Storage Upgrading to Briquettes and pellets Combustion. - PowerPoint PPT PresentationTRANSCRIPT
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Reed canary grass as an energy crop
Håkan Örberg
Unit of biomass technology and chemistry
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Reed Canary Grass research
at SLU/BTK Establishing crop
Crop treatment
Harvesting and transport
Storage
Upgrading to Briquettes and pellets
Combustion
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Perennial rhizomatous GrassReed Canary Grass
• A high yield crop in humid areas
• Resistant to diseases and damage by insects
• Establishing by seeding
• Agricultural machineries can be used by harvesting and seeding
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Delayed harvest of Reed Canary Grass
• 1. Washing by winter rain gives lower K and Cl contents
• 2. Harvest in early spring time gives dry material . 12-15 % water
• 3.High losses
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Regions in screening trails
Röbäcksdalen
Svalöv
Sotkamo
Ylistaro
Jokioinen
Foulum
Braunschweig
Dundee
Dublin
Aberystwyth
Rothamsted
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Yield of delayed harvested RCG in Northern EuropeYield of delayed harvest in diff. regions
0
2000
4000
6000
8000
10000
12000
14000
16000
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15Populations
kg DM / ha
North
South
West
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Fertilizing kg/ha
• Year 1+2 N P K
• 150 40 150
• Year 3-10/year 80 10 10
• Based on a yield of: 7500 kg/ha
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Harvesting studies
• Harvesting methods
• Combination of machineries
• Capacity measurements
• Defining period length of harvest
• Defining yield and losses
• Defining d.m.values
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Storage studies
• Different cover methods
• Different stacking methods
• Time consumption
• Cost calculating
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Upgrading to pellets or briquettes
• Capacity and quality measurements• Electrical consumption measurements• Optimizing processing parameters:
- Grinding, sieving, steam conditioning
- Die type
System analysis
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Bio fuel pilot plant
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Conveyor and shredder
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Briquette machine
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Pellets press
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Combustion
• Combustion tests
• Emission measurements
• Ash melting characteristics
• Combustion efficiency
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Boiler 150-600 kW
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Thank You for listening