The Combined Method Effect of Thermoelectric Cooling on Cooling Temperature-an Experimental Study

Abstract

Vaccine distribution to regions in Indonesia is very important and needs to be considered because vaccines have different resistance to temperature and safety in storage. Vaccine spoilage can occur if it is not stored under proper storage conditions. In storing vaccines, they usually use portable cooler boxes so that vaccines can be distributed to remote areas. The latest breakthrough was made. A cooler box using Peltier or thermoelectric elements was chosen as an alternative because it is simple and economical. This study aims to analyze the characteristics of the Peltier TECT1-12706 thermoelectric combined method on the cooling temperature in the cooler box. This study uses experimental methods on several variations of parallel, stacked, and pyramid combination installation methods with different thermoelectric quantities. The data analysis technique was carried out by making a diagram of the relationship between time and temperature received by the thermocouple during testing in the cooler box. From the experimental results, it was found that the best method of combining Peltier installations is to use 3 Peltiers with the 1-2 pyramid combination method where the temperature decrease in the cold sink is faster than the decrease in temperature in the cooler box when the coolbox is first operated with an average temperature of the lowest average is around 0.6°C. Suppose the cold sink can cool faster than the temperature in the cooler box. In that case, the cooling process in the box can be even faster, and the estimated waiting time before placing the vaccine can be faster to reach the lowest temperature. Therefore, the arrangement of 3 thermoelectrics with the pyramid method of 1-2 can be used to store certain vaccines to be brought to remote areas in Indonesia.