Nanofluid has become one of the interesting topics for engineers working for decades to
develop more efficient heat transfer in different applications. Nanorefrigerant, as a combination of
nanoparticles and refrigerant, is a new concept that has been recently investigated by number of
researchers. Electricity consumption usually varies from one sector to another. Generally, residential
sector is one of the biggest electricity consumers in Malaysia. Based on the literature, 26.3% of
electricity consumption in the residential sector in Malaysia is allocated to refrigerator–freezers.