Design, Build, and Thermal Analysis of a Portable, Battery-Powered Picnic Cooler under Various Loading Situations

Abstract

The thermal behavior of a portable refrigerating box (picnic cooler) under no-load, half-load, and full-load conditions at the evaporating space is examined in this paper. Because it was made to be used both indoors and outdoors, the portable vapor compression refrigerating box (also known as a picnic cooler) was large enough to fit in the back of a car. In order to guarantee its usability in the event of a power outage, the device was built to operate on a 12 DCV battery-inverter system. Because it is safe to use and environmentally friendly, R-134a was chosen as the refrigerant. For two hours each, the assembly was operated at empty load, half load, and full load. Five terminals at the condenser and evaporator each provided the temperature readings, and their The thermal analysis of the picnic cooler showed reduction of evaporator temperature as the refrigerator load increased from no-load to full-load. The condenser temperature, on the other hands, increased with the refrigerating load.