Sankey Diagrams » building http://www.sankey-diagrams.com A Sankey diagram says more than 1000 pie charts Wed, 11 Aug 2010 14:42:29 +0000 en hourly 1 http://wordpress.org/?v=3.0 Energy optimized heating system http://www.sankey-diagrams.com/energy-optimized-heating-system/ http://www.sankey-diagrams.com/energy-optimized-heating-system/#comments Tue, 24 Nov 2009 12:16:37 +0000 phineas http://www.sankey-diagrams.com/?p=985 This website on energy optimized building features a case study of a students dorm building at Wuppertal, Germany. [On a side note: it is quite striking that when I browse for new Sankey diagrams on the web, I come across them on German websites. Herr Sankey could well have been a German...]

The two Sankey diagrams shown along with the article visualize the heat energy flows before and after the optimization measures taken.

Sankey diagram showing heat flows in a students dorm building before energetic optimization (taken from: http://www.enob.info/de/sanierung/projekt/details/studentenwohnheim-neue-burse-wuppertal/)Sankey diagram showing heat flows in a students dorm building after energetic optimization (taken from: http://www.enob.info/de/sanierung/projekt/details/studentenwohnheim-neue-burse-wuppertal/)

Flows are in kWh per square metre per year. The first diagram breaks down heat consumption into heat used for room heating and for warm water preparation. In the second a new heating system has been installed providing heat mostly over the air circulation system. Only some static radiators remain. [Thanks Thomas for helping me with the translation/explanation].

Apart from the use of a fancy color, the Sankey diagrams are well done and comprehensible. Flows are to scale.

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