Augsburg, 20th July 2006. As part of its programme of continuous product development, the Augsburg-based turbocharger business of MAN B&W has launched the new TCA88-25, an uprated version of the established TCA88-20 turbocharger. A new compressor design with new wheel geometry has made it possible to extend the application range of the TCA 88 turbocharger by some 16%, based on an increase in volume flow per turbocharger from 50.4 m³/s in the TCA88-20 to more than 58.6 m³/s in the TCA88-25. Accordingly, the maximum supercharged engine output per turbocharger has risen from 23,400 kW for the TCA88-20 to 27,300 kW for the new TCA88-25.
As a result, it is now possible to supercharge larger engines with fewer turbochargers than previously. For example, only three TCA88-25 turbochargers are now required to supercharge the MAN B&W 12K98ME-C two stroke engine - the most powerful engine on the market.
In spite of this increase in power density, the dimensional envelope and weight of the TCA88-25 remain very close to those of the current TCA88-20, since the revised rotor geometry of the new model can be readily accommodated in the existing TCA88-20 casing. Similarly, the new TCA88-25 retains all the well-proven benefits of the TCA88-20 model, including efficiencies above 72%, low noise emissions, ease of maintenance and long times between overhauls.
Since its launch in 2002 the TCA88 has already logged a total of more than 100 units sold or giving reliable service around the world on a range of two and four-stroke-engines installed in vessels or operating in stationary applications.
see pictures