Authors : Utkarsh Patila; Kartik Latawadea; Ragini Jagtapa; Pranav Shindea; Aditya Patila; Prathmesh Parita

Volume/Issue : Volume 10 - 2025, Issue 1 - January

Google Scholar : https://tinyurl.com/36jsakke

Scribd : https://tinyurl.com/3544a5e3

DOI : https://doi.org/10.5281/zenodo.14709724

Abstract : Enhancing the performance of vapor compression refrigeration systems is critical for achieving better energy efficiency and environmental sustainability. This study focuses on utilizing nanoparticles as performance-enhancing additives in refrigerants used in vapor compression cycles. Nanoparticles exhibit superior thermal properties, including high thermal conductivity and enhanced heat transfer capabilities, which can significantly boost the efficiency of both refrigerants and lubricants. Various nanoparticles such as aluminium oxide (Al2O3), copper oxide (CuO), and titanium dioxide (TiO2) are evaluated for their effectiveness when dispersed in conventional refrigerants. To ensure reliable operation, proper stabilization techniques are employed to mitigate issues like particle agglomeration and sedimentation. The experimental findings reveal that incorporating nanoparticles improves the coefficient of performance (COP) by enhancing heat transfer rates and refrigeration efficiency. Additionally, the system experiences reduced energy consumption, contributing to more sustainable and cost-effective cooling solutions. The influence of nanoparticle concentration, type, and size on parameters such as thermal conductivity, pressure drop, and compressor workload is thoroughly analysed. Furthermore, the study highlights challenges related to dispersion stability and mechanical wear while discussing potential mitigation strategies. The research concludes that nanofluids, when adequately formulated, represent a promising innovation for advancing vapor compression systems. Their application can lead to improved heat transfer performance and energy savings, supporting the growing need for eco-friendly cooling technologies. Future studies should explore optimal nanoparticle formulations, investigate advanced nanomaterials, and examine compatibility with environmentally benign refrigerants to further enhance performance and sustainability. This work contributes to the ongoing efforts to develop energy-efficient refrigeration and air conditioning systems, aligning with global energy conservation and climate change mitigation goals.

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