Design and Implementation of Peltier Based Mobile Solar Vaccine Refrigerator

Renewable energy is seen as a promising solution to the ever-increasing problem of environmental degradation and energy scarcity. Increasing level of carbon-dioxide emission and the corresponding depletion of ozone layer has become a primary concern for both the developed and the developing nations. This paper describes a design and implementation of Peltier based mobile solar vaccine refrigerator. The proposed system does not need any kind of refrigerant and it maintains temperature between 2 degrees Celsius to 8 degrees Celsius within the refrigerator which is required to store vaccines. Peltier devices are used to provide the cooling effect in the refrigerator. LM35 sensor is used to display the internal temperature of the refrigerator. The model can be used to transport vaccines to rural areas where availability of electrical power is limited.