No Electricity Refrigerator innovation of India

This is the success story of Gujarat, where a traditional potter named Mansukhbhai Prajapati developed the most useful and ecological invention—a refrigerator that runs without electricity.

The concept was brought to light during the Gujarat earthquake in 2001, when he lost all of his clay stock. Inspired by the natural cooling properties of traditional Indian clay pottery (such as a matka), he started working with traditional craftsmanship and practical design to create an inexpensive refrigerator made entirely of clay after a newspaper published a picture of his broken water filter with the headline "poor man's broken fridge." This headline became a turning point.

Evaporative cooling is the basis of the operation:
The upper area is filled with water.
Water is taken in by the porous clay walls.
Heat disappears from the surface as absorbed water evaporates.
The chamber gently cools as a result of this process.

Fruits, vegetables, and even milk can be kept fresh using this method for around three to five days without the need for electricity. It resulted in the creation of the Mitticool brand, which was specifically designed to address issues with price and power scarcity in rural and semi-urban areas.

The Mitticool refrigerator serves as an example of how standard and basic engineering concepts may be used to find sustainable solutions to real-world issues.
It is an example of grassroots creativity that tackles:

Problems with energy availability
Affordability in rural areas
Sustainability of the environment
Low-carbon cooling options

SOURCE: INSTANT_ENGINEERING

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