Teach village mechanics and entrepreneurs how to build an optimized small wind turbine design for wind-electric waterpumping. The solution is simple and can be locally built with common materials. The system can double as a battery-charging unit when excess power is available. A portable system is realizable with proper tower design.
Hi Minvayu: Neat project and well described. In areas with enough wind it would run our dc pumps. Eric Jensen, www.sunmotor.ca
Definitely interested in testing your design motorpump. Hybrid Wind/PV would be a nice option. A proper hybrid controller would need to be developed.
This is not a solution for all of Bihar, rather it is for those locations that do have sufficient resource. This process is called micro-siting. 1/4 of Bihar has locations that may be of interest for small wind turbines. There is a huge difference between wind resource needed for large wind turbines and small wind turbines. Currently we are installing systems in Auroville, Tamil Nadu, where wind resource is similar to Bihar with very good results.
Bihar is not in Wind zone. Also generating electricity and then pumping water is not good idea, instead direct pumping wind mills are available. No portability.
Mechanical windmills are great, but they require constant maintenance and are more expensive, plus as you mentioned before they are not portable. Even in Bihar they would do well. In Auroville we have dozens of these and they do very well. The only recent problem we have is we have reforested so much that the trees have grown to the size of the windmill. Auroville is also not in a wind zone.
Very good project, my only concern is portability which is not the best, even with post optimisation. Low wind should not be such an issue. For example, Motor Wave Group in Hong Kong commercializes wind turbines working at 1m/s. However, may be direct pumping wind turbines should be contemplated.
A prime example of portability for small wind systems is in Mongolia and north-west China. The design and sizing is quite similar, the local conditions could be comparable in certain areas of India. What makes our project more complex is the sizing of the system. In Mongolia most turbines used by nomadic tribesmen are 200-300W, ours is 1kw. I believe it is achievable challenge.
Motorwave group in Hong Kong has wind turbines working at very low wind speed.
Motorwave group in Hong Kong has wind turbines working at very low wind speed.
I am sure motorwave group in hong kong wind turbines works at very low speed, but r they powerful enough generate electricity to pump water 5 meters below earth surface at flow rate of 10liters/sec...??
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