This study investigates the performance of nanorefrigerants (R134a-ZrO2) in a domestic refrigerator at concentration 0.2 g/l without changing components. Nanoparticles ZrO2 g/L with particle size 1-10 nm and 140 g R134a have been charged, investigations were carried out. Energy consumption pull-down tests conducted to investigate refrigerator. The parameters like refrigeration capacity, compres...