Flowing Salt Solution Thin Film Vaporization and Heat Transfer Mechanisms: A Molecular Dynamics Study

Dayuan Yuan, Chao Li, Liuyang Zhang and Shengqiang Shen ()
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Dayuan Yuan: Key Laboratory of Liaoning Province for Desalination School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China
Chao Li: Key Laboratory of Liaoning Province for Desalination School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China
Liuyang Zhang: Key Laboratory of Liaoning Province for Desalination School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China
Shengqiang Shen: Key Laboratory of Liaoning Province for Desalination School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China

Energies, 2024, vol. 17, issue 24, 1-20

Abstract: Geothermal energy offers a sustainable way, through heating a salt solution, to generate electricity and extract salt, minimizing environmental impact while supporting clean energy needs. The thermal behavior and vaporization mechanisms of flowing salt solution thin films are investigated in this study using molecular dynamics (MD) simulations. The research focuses on the evaporation dynamics of NaCl solutions at various temperatures (450 K and 550 K) and under different flow conditions, providing insights into the microstructural evolution and the role of ionic interactions. The simulations reveal critical aspects of evaporation, such as the formation and behavior of ion clusters, the impact of temperature on evaporation rates, and the effects of flow on heat transfer efficiency. Key findings include the observation that higher temperatures accelerate the evaporation process and promote ion clustering, while flow conditions enhance heat and mass transfer, leading to more efficient vaporization. These results contribute to a deeper understanding of the thermal dynamics in saline solutions, with implications for industrial processes such as desalination, crystallization, and thermal management.

Keywords: flowing solution; film vaporization; molecular dynamics; Raoult’s Law (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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