10.13 Schnell 20slides
Transcript of 10.13 Schnell 20slides
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Index
Schnell, the company
Principles of biogas and dual fuel technology
Schnell dual fuel technology
Schnell services and products
Schnell product portfolio / service data
Standardisation and series production
Benefits of dual fuel technology
Innovation
Conclusion
SCHNELL Motoren AG 2
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SCHNELL Motoren AG 3
Schnell, the company
Founded in 1992 by Hans Jrgen Schnell
Planning and construction of some 60 completebiogas plants.
Currently > 285 employees
14,000 m covered production facilitiesAt present, some 2,300 machines operating in20 countries on 4 continents
Production capacity of up to 1,000 modules per
annumMarket leader in the production of dual fuel units
Of the round about 6,000 Biogasplants in Germany,approx. 2,100 are powered by SCHNELL
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Schnell, the company
Wangen:
Management and production
SCHNELL Motoren AG
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SCHNELL Motoren AG 5
Schnell, the company
Serial production of CHP units
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SCHNELL Motoren AG 6
Principles
Biogas and dual fuel technology
Basics:
Higher efficiency due to higher compression ratio
Efficiency
Constant volume cycle
Compression ratio
5% higher efficiency
with dual fuel engine
Schnelldualfuelengine
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Principles
Biogas and dual fuel technology
Properties of biogas:
Relationship between energy content and anti-knocking quality
Energy content Knocking resistance
CH4Content %
Methanenumber
Natural
Gas
Natural
Gas
Natural
Gas
CIS
North Sea
CH4Content %
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Principles
Biogas and dual fuel technology
Properties of biogas:
Relationship between energy content and laminar flame velocity
Energy content Laminar flame velocity
CH4Content % CH4Content %
Natural
Gas
NaturalGas
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Principles
Biogas and dual fuel technology
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Schnell dual fuel technology
premature
or delayed
ignitioncombustion
knock
electronic ignition system conventional dual fuel engine
HJS's new electronic ignition system
regulated ignition timing, C always constant non-regulated ignition timing, 10002000 C
The variation in the combustion properties of biogas is five times more than the difference between standard and premium petrol.
The revolutionary electronic ignition system regulates the ignition timing according to the biogas quality. This means that
efficiency is always ideal and there is no knock damage to the engine. The injector needle movement sensormakes ignition
oil percentages of 2-5% and longer injector service lives possible.
piston toohot
C sensor
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Schnell dual fuel technology
Benefits of regulating the ignition timing and
combustion temperature individually for each cylinder:
reduces faults and downtimes
improves engine service lifestabilises and increases efficiency
improves emissions values
can be converted to 100 % vegetable oil operationreduces ignition oil volumes
economic use of biogenic ignition oils
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Schnell services and products
Schnell, a system supplier for the complete CHP
system:
CHP plant including instrumentation and control
technology
gas conditioning / gas blower
ignition oil tank system
exhaust gas heat exchanger
emergency cooler
heat distribution
sound absorber/noise insulation
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Schnell services and products
Consulting
Planning
Installation and Commissioning
Documentation
Service and Warranty
Schnell-Academy
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Schnell product portfolio/
service data
el. output output efficiency biodiesel ignition oilin accordance with DIN 3046
consumption/ hour
40 kW 37.0 % 0.8 litres
60 kW 39.0 % 0.8 litres
75 kW 40.0 % 1.0 litres150 kW 41.0 % 1.4 litres
170 kW 41.5 % 1.4 litres
180 kW 42.0 % 2.3 litres
250 kW 43.0 % 2.3 litres265 kW 47.0 % 2.3 litres
340 kW 44.0 % 3.1 litres
300 kW up to 1.6 MW units under development and testing
Electrical efficiencies of Schnell dual fuel engines
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Benefits of dual fuel technics
heating up phase/run-up operation without external
heatingrecommissioning/start-stop
not sensitive to fluctuations in methane gas which can be
caused by:
irregular supplies of coproducts
throughput of large volumes of slurry
starting and operation possible, even with poor gas quality
dual fuel engine starting is assured down to less than 30 % CH4
whereas below 40 % CH4most gas engines will no longer starthigh reliability of supply for heat supply contracts
economic advantage of high electrical efficiency
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Benefits of dual fuel technology
Efficiency benefit of the Schnell dual fuel
engine:
enhanced electrical efficiency of the electrical
CHP unit means increased power production for
the same energy use/biogas
A comparison:
The volume of gas required to operate a 200 kWspark-ignition CHP unit can run a 250 kWelectrical output dualfuel motor CHP unit.
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Innovation
'Turbine generator'
downstream turbine assupplementary module (30 kWelectrical possible):
additional exploitation of
exhaustincrease of electrical efficiencyup to 48.3%
possible technology bonus forturbine generator power (acc. to
German legislation)enhance economic efficiency ofbiogas plant
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Conclusion
In order to operate biogas plants, of whatever size,
as efficiently as possible, the modern Schnell dual
fuel unit is more interesting than ever because ofits high electrical efficiency, high reliability and
potential for innovation.
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P.S. One who goes for an inefficient unit will later have
to find more substrate.
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Many thanks for your attention.
www.schnellmotor.de