10.13 schnell 20slides

8/12/2019 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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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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Wangen:

Management and production

SCHNELL Motoren AG


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Serial production of CHP units


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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


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 %



Principles


Properties of biogas:

Relationship between energy content and laminar flame velocity

Energy content Laminar flame velocity

CH4Content % CH4Content %

Natural

Gas

NaturalGas



Principles





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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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




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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Consulting

Planning

Installation and Commissioning

Documentation

Service and Warranty

Schnell-Academy




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



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



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.



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



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.



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

10.13 schnell 20slides

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