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Patan Saida’s Mastless windmill |
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| Abstract |
"Palle Srujana, Telugu language partner of the Honey Bee Network and the newsletter and a voluntary organization is pursuing a very active agenda of searching, spreading and spawning innovations
in all walks of life. Brig (Retd.) Pogula Ganesham, his wife and the whole team of volunteers have devoted enormous energy in recognizing, respecting and
rewarding grassroots innovators. Story of one such innovator,
Patan Saids is shared here." |
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"The farmers often face the problem of securing electric connection and a shortage of funds to buy electric motors. Patan Saida, an innovator from the Guntur district in Chilakaluripeta village, has invented a mastless windmill. This windmill works independent of the direction of the wind and just needs a small wind thrust to pump water.
Palle Srujana, conducted “Chinna (mini) Shodha Yatra” in Nellore district and visited Allur Mandal in Gogulapalle village, where the organization’s members met Laxmayya, one of the farmers in the village. He explained to them how he extracts salt from the seawater and uses electricity to pump the brine water out of the sea. He also pointed out that many farmers were similarly using electricity without legal permission to meet their needs. After listening to him, Palle Srujana’s members suggested setting up Saida’s windmill which did not require electricity. Subsequently, Saida, along with a team of Palle Srujana’s volunteers, visited the village and chalked out a design to meet the requirements of farmers like Laxmayya. The volunteers contributed towards the required funds, and this helped in the establishment of Saida’s windmill, which pumps water from a 30-feet depth with the help of a 3-inch pipe.
However, Saida had to make adjustments to his former windmill to meet the farmers’ needs in Laxmayya’s village. Earlier, he had fit four pump sets to the windmill that pumped water continuously. But, as he faced some problems with them, he decided to make a stand-alone pump set to replace them. He tested this newly- made pump set and found that it was not pumping water continuously. Therefore, he had to add one more pump to close the gap. Due to this modification, it can now pump continuously through a 2-inch pipe and works better than the ones available in the market.
Saida had constructed a 7-feet-long pillar and assembled a 2.5-feet windmill on it. Further, he had attached his own pump set to complete it. The overall structure stood at a height of 9.5-feet. Its water discharge was 30-35 LPM, which increased to 50-60 LPM, with an increase in the wind speed. It is also important to note that the discharge by the pumps is around 15-20 LPM only.
As long as there is sufficient wind force, this windmill can run continuously. Farmers can use it in the fields. beside a river, a pond, or a lake. Even a farmer with shallow borewells can utilize this windmill without incurring much maintenance cost. The farmers need to keep in mind the following:
• The speed of the windmill depends on the availability of wind at any given time.
• As Saida’s experiment has shown, this windmill can be used to pump out water from a 30-feet depth.
• Though the windmill is custom- designed, 30-40% of its parts can be standardised.
• The performance of the windmill varies depending upon the wind speed and the depth of water.
• Custom-designed for each location, the windmill’s actual cost depends on the modified design.
• Since it is an innovation in the evolutionary stage, it will take time to live up to the desired expectations.
Translated by Rajesh Nelli from Palle Srujana Magazine, Telugu version of Honey Bee
Palle Srujana Volunteer Team
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| Volume No. |
Honey Bee, 31(3-4) ,5-6, 2020 |
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