MAN Diesel, a renown producer of marine and power plant diesel engines, has been working on improving fuel efficiency of its engines. Today, the fuel energy efficiency is about 50%. The MAN Turbo Efficiency System (TES) allows to recover of heat from the exhaust gas, which is responsible for about 50% of the energy losses.

Here is a Sankey diagram that shows the recovery of energy from exhaust gas.


Download a description of the TES here (PDF, 291 KB)
or view a high resolution version of the above Sankey diagram from their press picture gallery.

One Response to “Efficiency Diagram for Ship Engines”

  1. Sankey Diagrams » Blog Archive » What goes up, must come down! Says:

    [...] For most Sankey diagrams I find when browsing the web, a ‘left-to-right’ or ‘bottom-to-top’ orientation prevails. ‘Top-to-bottom’ is less common, but there are also examples like this one. [...]