Thursday, 10 July 2014

Giving Final shape to irrigation facilities

Store the water at a Height
to create pressure
Wind pump has no brakes. The water will be pumped so far as there is wind, all the time. But the speed is lesser and equal to a half HP motor or even less. Therefore it is important to store every drop of water for reuse.


In the absence of any other energy sources to pump the water again, it is also important that water be stored at a height so that the kinetic energy (gravity) of water can be used to create water pressure.

With this in mind, I have designed the following.  The water tank shown in the picture (Drawn by me using Google sketchup)  is of 1000 liters and kept at a height of 13 feet from ground. overflow water is to be stored in a large tank of 25 feet x 10 feet x 5 feet.

Excess overflow water to a large fish tank
Such an arrangement will allow excess water to be stored in the large tank, which will be above ground level. (one feet below ground and 4 feet above). Water from this tank can be  opened at the bottom or occasionally pumped back into plastic tank using small 1/2 HP solar pump (a future project. idea courtesy Shri D V Sridharan of Point Return).

Today the water tank costing Rs. 4500/- was mounted atop an iron stand of 150 Kg weight costing Rs.14000/-  (Iron costs Rs. 80/- per KG including design and finishing. Raw iron is costing Rs. 56/Kg).  Subbu had designed the stand as per my oral approval. The stand also i believe includes an iron ladder and a protective ring for the water tank. The surface area over the stand to keep the tank is 4.5 feet x 4.5 feet, with enough free space.

The cement tank shown in the picture is not done yet. It will be 25 x 10 x 5 feet and might cost upto Rs. 45000/-.  This tank however is very crucial to pass over windless days by storing and using the water.  The water tank may be used to grow fish which may provide organic manure.

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