A Boost At A Bank

23 May 2017

MAN Diesel & Turbo has upgraded the automation system on a 19-year old 6L 32/40DF engine operated by Deutsche Bundesbank in Frankfurt, Germany.

The upgrade was handled by MAN PrimeServ, the company’s global after sales brand. It re-established safe and reliable operation and long-term availability of spare parts and service for Deutsche Bundesbank’s plant.

Since 1998, Deutsche Bundesbank is operating a combined heat and power plant (CHP) in Frankfurt, driven by an MAN 6L 32/40DF engine. The heat generated by this CHP plant is used for heating and to produce hot water. During summer, the heat can be used for cooling by utilizing absorption refrigeration machines.

Deutsche Bundesbank is the central bank of the Federal Republic of Germany and part of the European System of Central Banks. It is one of the largest central banks in the world.

“While the 19-year old engine was still mechanically flawless, the old electronic engine automation system was causing problems” said Dr. Thomas Spindler, head of PrimeServ Augsburg Upgrade & Retrofit department, the initial situation. “Compare it to your smart phone: even though the old hardware itself might still be fine, newer generation software will achieve better performance and offer more user-friendliness. At some point you need to upgrade your phone to the recent operation system to keep it running.”

MAN PrimeServ Engineering updated the engine with the company’s own Safety and Control System on engine, the SaCoSone. Since 2008, the system has been used on hundreds of diesel and dual-fuel engines both in marine and stationary plants.

“It was the first conversion of an old dual-fuel engine automation system into a full SaCoSone system,” said Thomas Pollak, Development Engineer at PrimeServ Engineering. “We used the system for the 51/60 DF engine as a base, which is the 32/40 DF’s big brother, so to speak. That way we did not have to program a new product for an old engine from scratch.”

The upgrade required extended application engineering including design of the hardware and software scope. The existing released software was adapted to the old engine according to new specifications.

Finally, many components, such as injection unit and gas valves, were replaced. Retrofit and testing were executed on site.

The upgrade was implemented successfully and enables Deutsche Bundesbank to easily operate the new automation system. The application of the state-of-the-art automation system for large-bore dual-fuel engines ensures safe and reliable operation of the engine again – and long-term availability of spare parts and service, MAN said.

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