Application Of Peltier Effect In Producing Eco-friendly smart refrigerator

Electronices and communition and Engineering

Abstract The objective of this project work is to develop a portable thermoelectric refrigeration system capable of maintaining vaccine temperatures within 13 °C. The main system consisted of the thermoelectric module as a cooling generator along with an insulated cabin, battery, and charging unit. Thermoelectric elements perform the same cooling function as Freon-based vapor compression or absorption refrigerators. To ensure the success of this project several criteria are to be satisfied such as portability, size, and cost of the system. The design of the preservation is based on the principles of the thermoelectric module (i.e. Peltier effect) to create a hot side and a cold side. The cold side of the thermoelectric module is used for refrigeration purposes; provides cooling to the vaccine chamber. On the other hand, the heat from the hot side of the module is rejected by the surroundings with the help of heat sinks and fans. After gathering experimental data and necessary guidelines from research papers on the thermoelectric refrigeration systems, the initial design of the model was made. Based on the heat load calculations, the thermoelectric module is selected. The system was fabricated and was experimentally tested for cooling purposes. The capability of the system to maintain the required temperature and the time for reaching the same were analyzed. The results showed that the system can maintain the vaccine storage temperature within 13 °C under ambient temperature up to 30 °C with a minimum power consumption of 64 Watt. The proposed thermoelectric module, to maintain the vaccine storage temperature, satisfied the design criteria.

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