Sankey Diagrams

Just a quick casual Friday post. Found this Sankey diagram from a Czech website in my bookmarks.

It shows that in a cogeneration unit with recovery of heat energy from engine water cooling and exhaust gas cooling, an overall efficiency of 85,4% can be achieved, and losses can be reduced to 14,6%.

Don’t ask me what the accompanying text means, I just understand that ‘Kogenerace’ is ‘cogeneration’.

Bucknell University shows how it could reduce its GHG emissions significantly by switching over from a coal fired units to a cogeneration plant in 1998. The line-up is shown in a Sankey diagram.

Apart from the overall energy efficiency of 75% the Sankey diagram doesn’t show any figures. The shadow effects on the flows look funky, and add a spheric touch.