Page 97 - Artificial Intellegence_v2.0_Class_11
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Mitticool
Mitticool, the brainchild of Mansukhlal Raghavjibhai Prajapati, a modest clay craftsman in Rajkot, Gujarat, is a low-cost
clay refrigerator that does not require electricity. Mitticool requires just basic cleaning every two or three days since it
uses water's ability to remove heat through evaporation, the age-old idea of 'Surahi' or 'cooling through evaporation'.
The top of the unit is filled with water, which slowly drips down the sides, evaporating off the porous clay surface and
chilling the interior. This also serves as a water cooler with a tiny faucet tap. It also aids in the reduction of electrical
expenditures, which greatly benefits many rural families.
Tubewell Operated by a Windmill
A grassroots innovation by two brothers from Darrang district in Assam who had just graduated from high school has
proven to be a blessing to the salt producers of Little Rann of Kutch in coastal Gujarat. Windmill-powered pumps have
replaced diesel pump sets, on which they were previously reliant, to pump out seawater for salt production. This has
resulted in a 40% reduction in operational expenses. Their low-cost alternative was constructed from locally available
bamboo, tin sheet, strips of old tyres, and an iron shaft, which was then attached to a hand pump.
Green Skills-III 95

