Understanding energy transfer between working fluid and vapor is a critical issue in absorption refrigeration and thermophysics for the aim of intensifying heat conversion. However, it is difficult to achieve by experimental measurements due to the difficulty in catching the detailed and accurate modeling information, e.g., specific working fluid, and its underlying molecular mechanism. In order to study the evaporation and boiling behavior of refrigerant mixture from the microscopic point of view, the nanofilm consisting of different working fluids, with the evaporation model of R32/R1234ze (E) on metal wall, was established by utilizing molecular dynamics (MD) method. The effect of different mole ratios, i.e., pure R32, 3:1, 1:1, 1:3, pure R1234ze (E), on the evaporation and boiling behavior of mixtures was analyzed. The results show that the probability of explosive boiling decreases with the decrease of R32 molecular mole ratios. Thus, in turn, the performance of refrigerant mixture is observed to be better than that of pure refrigerant. Insights from this simulation research could provide an effective reference for the MD interactions and have potential benefit in developing efficient and sustainable processes for industries to minimize the chemical usage and environmental damage.

中文翻译：

---

金属壁上工作流体 R32/R1234ze(E) 的纳米膜沸腾和蒸发：分子动力学模拟的见解

了解工作流体和蒸汽之间的能量传递是吸收式制冷和热物理学中的一个关键问题，目的是加强热转换。然而，由于难以捕捉详细和准确的建模信息，例如特定的工作流体及其潜在的分子机制，因此很难通过实验测量来实现。为了从微观角度研究制冷剂混合物的蒸发和沸腾行为，利用分子动力学（MD ） 方法。分析了不同摩尔比（即纯R32、3:1、1:1、1:3、纯R1234ze (E)）对混合物蒸发和沸腾行为的影响。结果表明，爆炸沸腾的概率随着R32分子摩尔比的降低而降低。因此，反过来，观察到制冷剂混合物的性能优于纯制冷剂的性能。该模拟研究的见解可以为 MD 相互作用提供有效的参考，并在为工业开发高效和可持续的工艺以最大程度地减少化学品使用和环境破坏方面具有潜在的好处。