Abstract: The objective of this project work is to develop portable thermoelectric refrigeration system capable of maintaining vaccine temperatures between 8 °C and 13 °C. The main system consisted of thermoelectric module as cooling generator along with 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’s are to be satisfied such as portability, size and cost of the system. The design of the preservator is based on the principles of 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; provide cooling to the vaccine chamber. On the other hand, the heat from the hot side of the module is rejected to the surroundings with the help of heat sinks and fans. After gathering experimental data’s 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 the cooling purpose. 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 at 8°C and 13 °C under ambient temperature up to 30 °C with minimum power consumption of 34 Watt. The proposed thermoelectric module, to maintain the vaccine storage temperature, satisfied the design criteria. Coefficient of performance of the vaccine preservation (COPR) was calculated and found to be about 0.106.
Keywords: Thermoelectric module, Seebeck Effect, Peltier Effect.
Title: Experimental Analysis, Design and Fabrication of Portable Thermoelectric Vaccine Preservator
Author: SARATH RAJ
International Journal of Mechanical and Industrial Technology
ISSN 2348-7593 (Online)
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