Energetic, economic and environmental impacts of using nanorefrigerant in domestic refrigerators in Malaysia
2013
The electricity demand in the residential sector has increased rapidly in recent years in Malaysia. This is mainly due to lifestyle improvement; and is also associated with the increase in the number of domestic refrigerators in this tropical country. This paper investigates the effect of using nanorefrigerant on energy saving in domestic refrigerators and emission reduction of greenhouse gases as an environmental viewpoint. The combination of R-134a refrigerant with TiO₂ and Al₂O₃ nanoparticles with different mass fractions was scrutinized as a new refrigerant. It has been found that the energy saving using nanorefrigerant (0.1% TiO₂ nanoparticle/Mineral Oil) would be greater than normal refrigerant, with 10,863MWh reduction in energy consumption by the year 2030. In this regard, this technology will be environmentally friendly by decreasing greenhouse emission, especially in terms of carbon dioxide. Thus, nanorefrigerant can help to increase the performance of domestic refrigerators and reduce energy consumption. Favorable effect on emission reduction and economic justification were concluded.
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