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Energy
a vast amount of approval work,” he recalled.
He was also impressed by the open and positive
approach adopted by the team from MTU Onsite
Energy. "We always regarded each other as equals
in our discussions and developed our ideas jointly.
That was how the suggestion came about to
replace the two large gensets with six smaller
ones and build a gallery floor to accommodate the
SCR systems for exhaust gas aftertreatment.”
Cleaner, faster, more economical
He reported proudly how cleanly and efficiently
the units run. “With the new engines we have
reduced the particulate emissions to a sixth of
what they were, nitrogen oxides to a quarter
and carbon monoxide to half the previous level
per kilowatt-hour generated, and even lowered
fuel consumption by 10% at the same time,”
he recounted. The reason for those impressive
figures are the modern engines with commonrail
fuel injection and controlled SCR catalytic
converters. The latter clean the exhaust by
injecting urea into it. In the catalytic converter,
the urea reacts with the nitrogen oxides to form
the hamrless substances water and nitrogen.
“These generator sets are inside the air pollution
limits by a long way,” he stated with conviction.
And with the power plant being right in the town
of Fulda, it goes without saying that the emission
levels have to be as low as possible. Because of
that inner city location, ÜWAG also paid particular
attention to reducing noise emission. Special
soundproof walls allow almost no sound at all
to escape to the outside when the engines are
starting up and running.
system installed. It allows the specialists at
MTU Onsite Energy in Friedrichshafen to access
the gensets and other components of the plant
remotely and give advice on how to prevent or
rectify faults.
“Something special”
The first three of six gensets went into operation
in the power plant on December 23, 2011. Sven
Kunkel remembers the period just before then
very well. He and the whole team were under
extreme pressure. Especially because at that
time the plant had to be kept running constantly
at 75%. “We were contractually obliged to
supply electricity, we couldn’t shut down.” It
was not until September 2012, when the local
authorities in Fulda celebrated the inauguration
of the power plant that Kunkel was finally able
to relax. "The flexibility of this power plant meets
the demands of the current market perfectly. It
really is something special for a local authority
supplier to have something like this," recalls
the electrical engineer who is now also a diesel
engine specialist.
North Sea
Netherlands
Belgium
Words: Lucie Maluck
Pictures: Robert Hack
Germany
Fulda
Italy
To find out more, contact:
Dietmar Witzigmann
dietmar.witzigmann@mtu-online.de
Tel. +49 7541 90-4841
Berlin
Austria
Poland
Czech
Republic
Olaf Dempewolf checks the oil level in the engines – though an automatic oil replenishment system and a
maintenance-free filter mean he only rarely has to do so.
That is something that will be happening more
frequently in the coming weeks. It is in the winter
when the weather is cold that the demand for
electricity increases. “In the run-up to Christmas,
everyone is baking,” said Sven Kunkel. “And apart
from that, it’s cold outside, the days are short,
and businesses are working at full tilt to get the
jobs finished before the end of the financial year,”
he added. As at any other time of year, reliable
generators are a must in this period. For that
reason ÜWAG has had a special remote diagnosis
MTU Report 03/12 I 63