Eco-friendly and non-electric refrigerators for the cold North Europe
Sustainability is one of the prime concerns of eco-conscious tech designers and inventors. Most of the household gadgets consume high amounts of electricity and raise monthly electricity bills. Electricity is produced by burning non-renewable fuels like coal. The dependence on traditional forms of energy has made household appliances unsustainable. The dearth of non-renewable fuels has made it mandatory to design household appliances that can function without electricity.
The refrigerator is a necessary household gadgets used for keeping food items fresh for a longer period, making ice and storing food. This appliance is used in colder countries as well as in tropical and sub-tropical countries. In colder countries, a fridge can work without electricity. Based on this simplistic concept, a team from the Politecnico di Tornio has created an electricity free fridge. Professor Bistagnino led the team.
Despite of being an academic project, the electricity free refrigerator shows great promise and it is certainly a sustainable device. The design has been made for North European countries like Sweden, Norway, and Finland. The winters in these countries are very cold and there is no necessity of using an electricity driven freezer. The electricity free fridge is made of fir wood and underneath a sturdy layer of aluminum plate will be used. The team of designers has only used recycled aluminum to make the inner coating of this refrigerator. Locally produced materials will be used for keeping the cost and production related pollution levels low.
During the colder months, the interiors of the fridge will reach the necessary temperature through a tube and filter system that will keep it connected with the cold environment outside. As an actual freezing machine is not being used, the foods stored must be eaten while they are naturally fresh. The native knowledge and food storing traditions will be used for storing food instead of electricity.