Wasser für die Dritte Welt
Water for the Third World

 


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Scientific analysis of the pedal pump
University of Applied Sciences of Central Switzerland (FHZ)
Lucerne University of Applied Sciences and Arts (HSLU T&A)
Contact: info (AT) w-3-w.ch


Summary of the results


 


 


 

 

 

 

 

 

 


delivery capacity

With an average human energy input of 50 watts at a transportation height of 3 metres, an output of 80 litres of water per minute is reached.

 

 

 

 

 

 

 

Energy efficiency

The maximum energy-efficiency is 65% - an excellent result

 

 

 

 

 

 

 

 

Pressure

With the pressure created, the maximum lifting height can be measured. In practice the water table should not be lower than 7 m. Otherwise efficiency is reduced and water suction can be disrupted.