IIT Mandi students develop an all-weather jacket that can be used in summers as well as winters

Suitable to battle the extreme climatic conditions in of Rajasthan, hometown of one of the BTech students at IIT Mandi, this making of this jacket costed Rs 3900. It serves dual purpose as it keeps the body cool in summers and warm in winters.

Based on the basic principles of Peltier effect and electrical conduction, the jacket has Lithium batteries connected to a pair of metallic strips to maintain voltage difference. This helps in increasing upto 6 degree Celsius in winters and reduce 6 degree Celsius in summers.

The process of cooling or warming the jacket is slower due to two metallic strips, and adding more number of strips could make the jacket heavy and uncomfortable at the back. Therefore, water is circulated across the surface of the jacket through narrow pipes. The water flow changes the temperature inside the jacket and keeps one’s body warm or cool.

“We are habitual of using air conditioners in summers and heaters in winters, because we are more concerned about keeping the rooms warm or cool, but the focus should be on keeping the body at a comfortable temperature. This jacket works on the same idea,” said Shubhajit Roy Chowdhury, assistant professor, School of Computing and Electrical Engineering, IIT Mandi.

“Installation of more ACs and heaters is increasing the average temperature of cities, which is not an eco-friendly use of technology. All-weather jacket can be helpful in reducing cities’ contribution towards . After improvisations, the jacket can be used by Army personnel, police, people residing in extreme climatic conditions,” said Gaurav Meena, second year student, BTech in Civil Engineering, IIT Mandi.

Five BTech students from IIT Mandi – Rohan Agarwal, Manish Sharma, Shubham Tiwari from Electrical Engineering, Akul Gupta from Computer Sciences and from are also part of the team. The project is a part of Design Practicum, a part of flagship course at IIT Mandi where students work on interdisciplinary projects to build working prototypes for solving socially relevant problems and as per the needs of local communities.
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