Wind pump at Wicken Fen

 We found this wind pump at Wicken Fen the day after Storm Eunice.

It is to pump water up to keep the fen wet.

The wind was strong so I estimated an average of 15 metres per second and worked out what mass hits the blades every second. The big assumption is that it just disappears as it hits the blades and passes out the other side rather than interfering with incoming wind.

I then stuck it into the equation for kinetic energy to give a figure for the mass delivered per second. I equated this with the potential energy equation and assumed the water was raised a metre. It assumes all wind energy goes to the mechanism which is unrealistic. At that wind speed, the maximum delivery of water per second would be 1.5 cubic metres or 1500 litres.