Automation of Refrigeration Systems for Extending Shelf life of Fruits and Vegetables in Remote Areas for Economically Weaker Section
Keywords:automation system, refrigeration, remote areas, shelf life, microcontroller.
India is an agricultural country. During lockdown, there had been a big problem transporting the production
to cold storages. Considering the problem of villagers, a low cost and affordable refrigeration system is proposed
here. The time and cost of transportation through the cold chain and the storage are thus saved. This cold storage
is automated to control the environmental conditions suitable for extending life of fruits and vegetables. It uses a
microcontroller to control humidity, temperature and CO2 level which is appropriate for the commodity to be
stored by the farmer. It alerts the farmer before the expiry date of the stored commodity through a message on the
phone number linked with the storage. It uses the water obtained from condensation on cooling ducts for humidity
control. To maintain the optimum level of CO2 inside the chamber, fresh air is circulated at regular intervals of
time. It consumes same power as a refrigerator would consume. It does not require continuous water supply or
ammonia as in regular cold storage systems. It can be easily customized for a particular user.