Influence of fluid composition on heat transfer characteristics of nanobubbles: Experimental and simulation insights

SR Liu and YM Zhao and YW Yang and LT Zhang and QW Gao and M Lei and J Wang and QF Li, INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 217, 110068 (2025).

DOI: 10.1016/j.ijthermalsci.2025.110068

Research on nanobubbles has mainly centered on descaling and stability, with limited attention to their heat transfer performance and influencing factors. A comprehensive theoretical framework is still lacking. In this study, an experimental platform was developed to simulate the circulating cooling water process in a power plant. The heat transfer effects of nanobubbles were systematically examined across various water types and pH environments, combining experimental data with molecular dynamics simulations. The study found that nanobubbles achieved optimal heat transfer in river water at a pH of 7-8.

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