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Jens Dall Bentzen
Dall Energy biomass furnace- Fuel flexible & low emission
Jens Dall BentzenManaging director
Jens Dall Bentzen
Challenges with standard technology
2
Narrow specification of biomass -> High fuel cost
Emission standards -> expensive filters
50-100% load -> Summer boiler + winter boiler
Standard technologyanno 2015
With new emission standards must Multicyclone be replacedwith Electrostaticfilter
Jens Dall Bentzen
Dall Energy solution Multifuel – low emission – high efficient - biomass system
3
Costumer benefits
1.Furnace - Low cost fuel
(20-50% cheaper biomass)
- 95% less dust - 10-100% load adjustment - Low NOx & CO - Low maintenance- Low power consumption
2.Energy recovery10-20% extra efficiency
Developed with support from EUDP & the Danish Agency for Science Technology and Innovation
1
2
Same CAPEX ….but 20-40% reduction in OPEX!
DallEnergy Furnace
Standard boiler
DallEnergy
Scrubber System
Jens Dall Bentzen
Dall Energy multi fuel furnace
4
Biomass
Biomass converted to gas and ash In the updraft gasifier is the gas produced. Due to low gas velocity through the biomass layer most particles are kept in the bed and few are transported to the combustion zone.
The temperature in the ash layer is kept at 100oC, hence low maintenance and long lifetime of screws
Hot flue gas with ultra low particle content
700oC
800oC
Gas is burned Gascombustion chamber designed for low NOx, CO and dust emissions.The radiation from the gas combustion transfers heat to the top of the biomass layer resulting in bed height of only 2 m.
25oC
950oC
100oC
Jens Dall Bentzen
European Patent award 2011
Jens Dall Bentzen
Dall Energy in CNN internationalhttp://edition.cnn.com/videos/business/2013/10/24/spc-make-create-innovate-biomass-power.cnn
6
Jens Dall Bentzen
Dall Energy Technology Timeline
7
2009/10 2011/13
Process verification
1. Gen.8 MW
2014/15
3. Gen.2. Gen.
2 MW USA 9 MW-DK
2016 ->
Furnace at Bogense heating
Marcel & CharlieWarwick Mills
Heat only plants in Denmark + other
countries
2 MW pilot plantSønderborg
Plant
CHP plant in DK:10 MW heat
+ 2 MW power
Jens Dall Bentzen
Sønderborg plant
8
Jens Dall Bentzen
EmissionsNo cyclone / ESP / bag filter
0
100
200
300
400
500
600
700
NOx CO Dust
mg/
Nm
3
Emissions from Dall Energy plants
Danish Limits
Bogense
Sønderborg
Warwick
Jens Dall Bentzen
Fuel flexibility
Fuel , Sønderborg 2015
Fuel samples, Bogense 2013
Jens Dall Bentzen
Dall Energy business model for Germany
Turn key partner
Sales
Project Management
Installation Services
After Sales Service
Customer
Contract
Dall Energy
Engineering
Sales feeEngineering fee
Furnace Control
Scrubber system
Hardware
• Feeder• Furncace• Ash system• Flue scrubber• Condensate filter• Insulation• Controll
• Jens Dall• Anders Brendstrup•Gert Bjørn• Paul Rietveld• Jørgen Beck• Bjørn Teislev• Claus Geest• FORCE technology
Suppliers
Ingeneering
Hardware
Jens Dall Bentzen
Thank you – any questions
Charlie Howland og Bolette DallApril 2015