20 GAS ENGINES


Holger Herzberg, Project Manager at Vereinigte Stadtwerke Bad Oldesloe/Germany


State-of-the-art gas engine technology leaves room for customer-specific innovation


Though you can't see it from the outside, the indoor swimming pool in the picturesque town of Bad Oldesloe in Schleswig-Holstein is supplied by cutting-edge energy technology. The plant is operated by Vereinigte Stadtwerke, a municipal operator which runs five district heat networks in the region. Today, the technology now benefits a youth hostel, a hospital, schools in the city center, and private & commercial customers.


S


ince late 2016, the new-generation gas engine MWM TCG 3016 of


Caterpillar Energy Solutions (CES) from Mannheim has been running in the cogeneration power plant at the Bad Oldesloe swimming pool, providing power & heat energy. "The new TCG 3016 is still


something like a 'mule' among the gas engines," reports Holger Herzberg, responsible for heat at Vereinigte Stadtwerke. According to Herzberg, the new genset boasts a number of improve- ments over its predecessors. "The gas engine is extremely


robust, which translates to longer service life. Moreover, the new TCG 3016 is maintenance-friendly, and the lubricant consumption has


“The new TCG 3016 is still something like a 'mule' among the gas engines.” - Holger Herzberg, responsible for heat at Vereinigte Stadtwerke


been reduced significantly, making the genset even more efficient," he reports. The TPEM (Total Plant &


Energy Management) – the new control software for the TCG 3016 – also comes directly from Caterpillar Energy Solutions and fully controls the generator switch as well as the dry coolers, pumps, and other auxiliary drives. With the engine and control software originating from one source, the communication for the integrated power plant control with all its components works


Worldwide Independent Power November 2017


even better. "Our project presented a


challenge for the MWM engineers, as the genset had to be installed in an existing co- generation plant. That is more complicated than installing an entirely new plant," says Herzberg, commenting on the planning and construction phase.


The conversion had to take


place while the heat supply went on. The conversion phase in late 2016 took about eight weeks from the removal of the old genset to the connection of the new one. Running smoothly since


November 2016, the TCG 3016 has been upgraded by Herzberg with a number of additional features, such as highly efficient, speed- controlled pumps for hot water, engine cooling water,


and mixed cooling water circuits. Herzberg proudly explains:


"In this way, we save about 25,000 kWh of pump energy a year."


MWM plants excel in terms of their adaptability to specific customer needs, by means of which the plants can be made even more efficient. This is a key reason why Herzberg appreciates the new TCG 3016. The reduced lubricant consumption of less than 0.1 g/kWh is another positive aspect.


"Compared to the


previous oil change interval of about 2,000 to 3,000 operating hours, the TCG 3016 only needs an oil change once every 5,000 operating hours, i.e. about once a year,” Herzberg concludes.


www.mwm.net www.gmp.uk.com


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