dropwise condensation

简明释义

滴状凝结

英英释义

例句

1.The efficiency of heat exchangers can be improved by promoting dropwise condensation on their surfaces, leading to 滴状冷凝效果。

通过促进热交换器表面的滴状冷凝，可以提高其效率，从而产生滴状冷凝效果。

2.In the process of cooling, the steam was converted to liquid through dropwise condensation, which is known as 滴状冷凝.

在冷却过程中，蒸汽通过滴状冷凝转化为液体，这被称为滴状冷凝。

3.The phenomenon of dropwise condensation occurs when droplets form on a surface without spreading out, which is called 滴状冷凝.

当液滴在表面上形成而不扩散时，就会出现滴状冷凝现象，这称为滴状冷凝。

4.Researchers are studying the effects of surface texture on dropwise condensation to enhance water collection systems, which is referred to as 滴状冷凝.

研究人员正在研究表面纹理对滴状冷凝的影响，以增强水收集系统，这被称为滴状冷凝。

5.In HVAC systems, dropwise condensation can help reduce energy consumption by minimizing heat transfer resistance, known as 滴状冷凝.

在暖通空调系统中，滴状冷凝可以通过最小化热传递阻力来帮助降低能耗，这被称为滴状冷凝。

作文

In the study of thermodynamics and heat transfer, one fascinating phenomenon that often captures the attention of scientists and engineers is dropwise condensation. This process refers to the way in which vapor condenses into liquid droplets on a surface, as opposed to forming a continuous film of liquid. Understanding dropwise condensation is crucial in various industrial applications, including heat exchangers, condensers, and even in the design of energy-efficient buildings.When vapor comes into contact with a cooler surface, it can lose energy and transition into a liquid state. In the case of dropwise condensation, this transformation occurs in the form of discrete droplets. These droplets form due to the presence of nucleation sites on the surface, which can be microscopic imperfections or specially engineered patterns that enhance the condensation process. The formation of droplets is advantageous because it allows for a greater surface area to volume ratio, which facilitates more efficient heat transfer compared to filmwise condensation, where a continuous layer of liquid forms.The efficiency of dropwise condensation can be attributed to several factors. Firstly, the droplets are able to roll off the surface once they reach a certain size, preventing the buildup of a thick liquid layer that would otherwise insulate the surface and reduce heat transfer. Secondly, the movement of these droplets can create turbulence in the surrounding vapor, promoting further condensation and enhancing the overall efficiency of the process.Research has shown that dropwise condensation can be significantly influenced by the surface properties of the material involved. Hydrophobic surfaces, for instance, tend to promote dropwise condensation because they encourage droplet formation and minimize wetting. On such surfaces, the droplets can coalesce and grow larger before detaching, leading to improved heat transfer rates. Conversely, hydrophilic surfaces may lead to filmwise condensation, which is generally less efficient.The implications of mastering dropwise condensation extend beyond theoretical understanding; they have practical consequences in engineering and technology. For example, in the field of energy production, optimizing dropwise condensation can enhance the performance of steam turbines and improve the efficiency of power plants. Furthermore, advancements in materials science have led to the development of coatings and surface treatments that can manipulate wetting properties, thereby promoting dropwise condensation in desired applications.In conclusion, dropwise condensation is a vital concept in thermodynamics that plays a significant role in heat transfer processes. By fostering a deeper understanding of this phenomenon, scientists and engineers can develop innovative solutions that enhance efficiency in a wide range of applications, from energy production to climate control in buildings. As research continues, the potential for harnessing dropwise condensation for sustainable technologies becomes increasingly promising, paving the way for a future where energy efficiency is paramount. Thus, the study of dropwise condensation not only contributes to academic knowledge but also holds the key to practical advancements in our quest for sustainable living.

在热力学和热传递的研究中，一个引人入胜的现象常常吸引科学家和工程师的注意，那就是滴状冷凝。这个过程指的是蒸汽在表面上冷凝成液滴的方式，而不是形成连续的液体膜。理解滴状冷凝对于各种工业应用至关重要，包括热交换器、冷凝器，甚至是在节能建筑的设计中。当蒸汽与较冷的表面接触时，它会失去能量并转变为液态。在滴状冷凝的情况下，这一转变以离散的液滴形式发生。这些液滴的形成是由于表面上存在成核位点，这些位点可以是微观的不完美或专门设计的图案，增强了冷凝过程。液滴的形成是有利的，因为它允许更大的表面积与体积比，这促进了比膜状冷凝更有效的热传递，在膜状冷凝中，液体形成连续的层。滴状冷凝的效率可以归因于几个因素。首先，一旦液滴达到一定大小，就能够从表面滚落，防止液体层的厚积，这种厚层会绝缘表面并减少热传递。其次，这些液滴的运动可以在周围的蒸汽中产生湍流，促进进一步的冷凝并增强整体过程的效率。研究表明，滴状冷凝可能会受到所涉及材料的表面特性的显著影响。例如，疏水性表面往往促进滴状冷凝，因为它们鼓励液滴的形成并最小化湿润。在这样的表面上，液滴可以合并并长大，然后脱落，从而提高热传递速率。相反，亲水性表面可能导致膜状冷凝，通常效率较低。掌握滴状冷凝的意义超越了理论理解；它们在工程和技术中的实际后果。例如，在能源生产领域，优化滴状冷凝可以增强蒸汽涡轮机的性能，提高发电厂的效率。此外，材料科学的进步导致开发出可以操控润湿特性的涂层和表面处理，从而在所需的应用中促进滴状冷凝。总之，滴状冷凝是热力学中的一个重要概念，在热传递过程中发挥着重要作用。通过深入理解这一现象，科学家和工程师可以开发出创新的解决方案，提高各种应用的效率，从能源生产到建筑物的气候控制。随着研究的持续，利用滴状冷凝实现可持续技术的潜力变得越来越有希望，为我们追求可持续生活的未来铺平了道路。因此，研究滴状冷凝不仅有助于学术知识的积累，还为我们在可持续发展中的实际进步提供了关键。