DIRANA technology from OMICRON - Global Media Publishing Ltd ...

14
GAS ENGINES
Jenbacher biogas engines waste
Increasingly, Jenbacher biogas engines
are using the biogas from anaerobic
fermentation of organic waste from
agriculture, foodstuff or feed industries.
This fuel can substitute for fossil fuels.
The global installed base of almost 1,300
GE Jenbacher gas engines running on
biogas has the capacity to generate more
than 6.8 million MWh of electricity per
year without burning fossil fuel. This is
equivalent to the annual electricity
demands of over 617,000 US households,
over 1.6m European households or over
1.5m urban Chinese households.
A GE Jenbacher JGS 620 gas engine
running at full capacity for 8,000 hours
per year on associated petroleum gas,
when used instead of a comparable diesel
generator, is designed to avoid the
combustion of more than 4.8m litres of
diesel fuel per year while generating
electricity. This could yield an annual
savings of more than US$ 2.5m based on a
diesel price of US$ 0.53 per litre.
Along with natural gas operation,
Jenbacher technology makes it possible to
dispose of environmentally offensive gases
(e.g., from landfills, agriculture, coal
mining, chemical plants, and other
industries). To date, Jenbacher gas engine
cogeneration systems are also used for
CO2 fertilisation in greenhouses and
absolutely nothing
Renewable resources such as grass, corn, and chicken dung can be fermented to produce biogas to
fuel a Jenbacher gas engine, along with waste gases. The generated electricity is then fed into the
public grid and the heat produced is primarily used for heating purposes, WIP reports.
trigeneration
systems. When it
comes to use with
biogas, the
Jenbacher Type 2
engine offers
extremely high
efficiency in the
250 to 350 kW
power range. Its
robust design &
stationary engine
concept results in
excellent
component
durability and a
service life of
60,000 operating
hours before the
first major overhaul.
Optimised
components and a
proven control and
monitoring concept give this engine
outstanding reliability.
In addition to two existing Jenbacher
systems, a J208 GS engine has already
been installed in at least one sewage
treatment plant.
Due to the high efficiency of this new
engine, the annual electricity output
could be increased by more than 20%
while maintaining the
fuel gas consumption
at the same level.
Three cogeneration
systems cover 85% of
the total electricity
requirement and 100%
of the heat requirement
of the sewage
treatment plant.
Renewable resources
such as grass, corn,
JULY 2010 • WORLDWIDE I NDEPENDENT P OWER
Type 2 Jenbacher engine.
GE Jenbacher JGS 620 gas engine.
and chicken dung can also be fermented
to produce biogas to fuel a Jenbacher gas
engine. The generated electricity is
normally fed into the public grid; the heat
produced is used for heating purposes
During summer, the exhaust gas from the
engine can be used to dry grain and wood
chips. The substrate from the biomass
fermentation can even serve as fertiliser.
Gas engines can also run on biogas
produced from materials such as liquid
manure and corn.
Features and benefits for the Jenbacher
biogas engines include: optimised
combustion for maximum efficiency and a
turbocharger bypass which evens out
extreme operating conditions.
Internet link
www.ge.ecomagination.com
WIP