A Review on the Effect of Metal Oxide Nanoparticles on the Performance of Refrigeration Systems
J. Environ. Nanotechnol., Volume 14, No 2 (June 2025) pp. 514-524
Abstract
The use of nanoparticles in refrigeration systems has gained attention for their potential to significantly improve energy efficiency and system performance across a range of applications. These nanoparticles are often referred to as nanorefrigerants. This paper explores recent research works that demonstrate how nanoparticles like titanium dioxide (TiO2), aluminum oxide (Al2O3), and copper oxide (CuO) can result in marked reductions in energy consumption and notable improvements in the coefficient of performance. Key breakthroughs include enhanced heat transfer efficiency, increased thermal conductivity, and reduced frictional losses, all of which contribute to more efficient refrigeration systems. These advancements are particularly valuable in industries such as food processing, where optimizing energy use and maintaining temperature control are essential. However, there are challenges, including the potential for higher pressure drops within the system. Nevertheless, the advantages of using nanotechnology in refrigeration systems emphasize the necessity for continued research to optimize nanoparticle formulations and address the challenges, ensuring that nanorefrigerants can be fully utilized to improve sustainability and performance in refrigeration applications.
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