Abstract

The task of intensifying film evaporation and boiling is extremely relevant. It is of great interest for technologies of chemical, oil refining, food, cryogenic, and refrigeration industries. To date, a lot of experimental material has been accumulated in this area. However, correct physical models are still missing because of the complexity of describing the hydrodynamics and heat and mass transfer, which requires use of experimental data. It is often that experimental results of different works contradict each other, and it is difficult to distinguish the main factors and dimensionless criteria. There is a global trend of reduction in the mass and size of heat exchangers, which necessitates intensification of transfer processes. This review critically examines various approaches and offers effective criteria for analyzing and summarizing the existing experimental data on film heat exchangers. The review shows that finning stabilizes the film flow and allows intensifying the heat transfer manifold, both during evaporation and boiling.

中文翻译：

---

薄膜换热器：流体动力学和传热（综述）

摘要

增强薄膜蒸发和沸腾的任务极为重要。它对化学，炼油，食品，低温和制冷行业的技术非常感兴趣。迄今为止，该领域已经积累了许多实验材料。但是，由于描述流体力学以及传热和传质的复杂性，仍然缺少正确的物理模型，这需要使用实验数据。通常，不同作品的实验结果相互矛盾，很难区分主要因素和无量纲标准。在全球范围内，减小热交换器的质量和尺寸的趋势是必然的，这需要加强转移过程。这篇评论严格审查了各种方法，并提供了有效的标准来分析和总结薄膜热交换器上的现有实验数据。审查表明，翅片在蒸发和沸腾过程中都能稳定薄膜流动并增强传热歧管。