Sankey Diagrams. Why are they called Sankey Diagrams? Captain Henry Sankey (1853 – 1925) Captain...

5
Sankey Diagrams

Transcript of Sankey Diagrams. Why are they called Sankey Diagrams? Captain Henry Sankey (1853 – 1925) Captain...

Page 1: Sankey Diagrams. Why are they called Sankey Diagrams? Captain Henry Sankey (1853 – 1925) Captain Matthew Henry Phineas Riall Sankey was an engineer. In.

Sankey Diagrams

Page 2: Sankey Diagrams. Why are they called Sankey Diagrams? Captain Henry Sankey (1853 – 1925) Captain Matthew Henry Phineas Riall Sankey was an engineer. In.

Why are they called Sankey Diagrams?

Captain Henry Sankey (1853 – 1925)

Captain Matthew Henry Phineas Riall Sankey was an engineer.

In 1898 he was the first person to publish a diagram that used the width of an arrow to show the size of the energy flow.

The first ever Sankey diagram shows the energy flow in a real steam engine compared with a ‘perfect’ engine.

Page 3: Sankey Diagrams. Why are they called Sankey Diagrams? Captain Henry Sankey (1853 – 1925) Captain Matthew Henry Phineas Riall Sankey was an engineer. In.
Page 4: Sankey Diagrams. Why are they called Sankey Diagrams? Captain Henry Sankey (1853 – 1925) Captain Matthew Henry Phineas Riall Sankey was an engineer. In.

10 J energy in

1 J

useful

energy

out

9 J

wasted

energy

out

Sankey Diagram for a filament bulb

Page 5: Sankey Diagrams. Why are they called Sankey Diagrams? Captain Henry Sankey (1853 – 1925) Captain Matthew Henry Phineas Riall Sankey was an engineer. In.

10 J energy in

1 J

useful

energy

out

9 J

wasted

energy

out

10 J energy in

4 J

useful

energy

out

Sankey Diagram for a filament bulb

Sankey Diagram for an energy efficient bulb

6 J

wasted

energy

out