The wind Rope pump combines the hand Rope pump with a windmill, partly based on the modern Dutch CWD 2000*** wind pump model. There are 2 types of Wind Rope pumps.
The 270 model - functions with winds changing within 270 degrees (seasonal winds).
The 360 model - functions in all wind directions, this model is still being improved.
Model 12-270 in Santa Rita (Nicaragua) used for irrigation.
Tower of 10 meter, rotor diameter 3.6 meter. Storage tank 50 m3.
In Nicaragua there are now 240 wind Rope
pumps of the 270 model, operated and maintained by the users. They are used for cattle watering,
domestic water supply, but mainly for irrigation. In Nicaragua several farmers generated additional net
incomes over US$ 1500 per annum with this wind pump. In 1999, the wind Rope pump was evaluated by Renewable
Energy Development (RED) from Holland. Evaluation report, (Ingles and Spanish) includes history and
technical aspects. See www.arrakis.nl
Features of the Wind Rope pump:
Low starting wind speed 3 - 3.5 m/s (no initial water column).
Simple rotor, head and tower construction.
Can be produced with basic skills and standard materials.
Total weight 80-160 kg (1/3 of that of a traditional wind pump).
Option to mount a US$ 50 charger for battery charging.
Back up system by hand or a motor (in case there is no wind).
The user can do maintenance and most repairs (proven in Nicaragua).
Costs 3 to 4 times less than traditional wind pumps.
Model 8-360 With a tower of 4 meter (wood).
Transport of a Wind Rope pump.
Model Rotor diameter Tower height Max. pump depth Lift (above ground level) Output (V5m/s, well 10 m.) Cost (ex-factory Amec)