After the six years of R&D works a powerful innovative wind pump design has started to work on the field. Multi blade mechanical wind pump which is called "American Type Windmill" is well known traditional technology, but also it has well known fundamental efficiency problem because of fixed stroke. The problem seems like the fixed speed wind generators efficiency problem. Wind rotors need speed control with the hands of generator or pump. It is also possible to utilize wind energy to pump water by using wind-electric pumps. The wind-electric pumping systems convert mechanical power to electrical power and then electrical power is converted back to mechanical power. Total system efficiency (water power/wind power) of the wind-electric systems is between 5,5% and 7,5%.
The windmill has vertical axis two bucket Savonius rotor. Sweeping area of the rotor is 30 m2. The rotor drives a piston pump and it is connected to pump mechanically with piston rods. Pump is located in a well below water level and the rotor is located on a lattice tower. There is a control mechanism called Opti-Stroke System between the rotor and the pump. Opti-Stroke System converts rotational movement into linear movement and also changes the length of linear movement (or stroke of the piston) according to wind speed. The electronic control unit has a wind speed sensor. There is a small solar panel and battery charge unit to supply electricity for control system. Opti-Stroke System is a hybrid system that enables using solar or grid electricity with wind rotor together. The whole system can be used for drinking water pumping. It is necessary to use a reservoir as energy storage. The system stores wind energy in the form of potential energy of water and it is possible to pump surface waters from rivers or lakes up to the hill or to pump the water from drilled well by using hybrid water pumping windmill. Pump of the windmill has multi-piston on a single pile. The innovative multi-piston pump technology enables to use bigger piston area in narrow drilled wells. The company is looking potential partners for licensing agreement and commercial agreement with technical support for this technology.
Innovative Aspects:
- The Opti-Stroke system changes the stroke of the piston according to wind speed.
-The counterweight technology provides smooth loading conditions for wind rotor.
- The innovative piston pump design provides bigger piston area for narrow drilled wells.
- 20% more water pumping capacity with Savonius rotor than traditional wind-electric pumping systems.
- 60% more water pumping capacity with Darrieus rotor than traditional wind-electric pumping systems.
- Hybrid design provides energy security for the pump station.
- Ideal use for village drinking water pump stations.
- Larger pumping capacity than traditional wind pumps.
