filmwise condensation

简明释义

膜状凝结

英英释义

例句

1.In many industrial applications, filmwise condensation is preferred over dropwise condensation for its stability.

在许多工业应用中，膜式冷凝因其稳定性而优于滴状冷凝。

2.The researchers studied the effects of surface roughness on filmwise condensation rates.

研究人员研究了表面粗糙度对膜式冷凝速率的影响。

3.Understanding filmwise condensation can lead to better thermal management systems.

理解膜式冷凝可以导致更好的热管理系统。

4.The design of the condenser was optimized for filmwise condensation to enhance performance.

冷凝器的设计经过优化，以增强膜式冷凝的性能。

5.The efficiency of the heat exchanger improved significantly due to the presence of filmwise condensation.

由于存在膜式冷凝，热交换器的效率显著提高。

作文

In the study of thermodynamics and heat transfer, various phenomena are observed that play a crucial role in the efficiency of systems. One such phenomenon is filmwise condensation, which refers to the process where vapor condenses on a surface, forming a thin film of liquid. This process is significant in many industrial applications, including power generation, refrigeration, and chemical processes. Understanding filmwise condensation is essential for engineers and scientists as it impacts the thermal performance of heat exchangers and other equipment.The mechanism of filmwise condensation involves the formation of a continuous liquid layer on the surface of a condenser or heat exchanger. As vapor comes into contact with a cooler surface, it loses energy and transitions into a liquid state. Unlike dropwise condensation, where droplets form and fall off the surface, filmwise condensation creates a uniform film that can lead to a reduction in heat transfer efficiency due to the insulating properties of the liquid layer.In practical terms, filmwise condensation can be observed in various scenarios, such as in steam condensers used in power plants. Here, steam from turbines is cooled and condensed into water, which then flows back to the boiler. The presence of a continuous film can hinder the heat transfer rate, making it vital for engineers to design systems that minimize this effect. Enhancing the surface characteristics of condensers, such as using hydrophobic coatings, can promote dropwise condensation instead of filmwise condensation, thereby improving overall efficiency.Moreover, the understanding of filmwise condensation is not limited to just power generation. It also plays a role in HVAC systems, where the condensation of moisture from the air can lead to energy loss and potential damage to equipment. By designing systems that effectively manage filmwise condensation, engineers can improve energy efficiency and prolong the lifespan of HVAC components.Research into filmwise condensation continues to evolve, with scientists exploring new materials and surface treatments that could enhance heat transfer rates. For instance, nanostructured surfaces have shown promise in promoting more efficient condensation processes. These innovations could lead to more sustainable practices in industries reliant on thermal management.In conclusion, filmwise condensation is a critical concept in the field of heat transfer, affecting the performance of various thermal systems. Its implications stretch across multiple industries, necessitating a thorough understanding for engineers and researchers alike. By focusing on minimizing the negative impacts of filmwise condensation through innovative designs and materials, we can enhance energy efficiency and contribute to more sustainable engineering practices.

在热力学和传热学的研究中，观察到多种现象在系统效率中发挥着至关重要的作用。其中一种现象是膜状凝结，指的是蒸气在表面上凝结，形成一层薄薄的液体膜。这个过程在许多工业应用中具有重要意义，包括发电、制冷和化学过程。理解膜状凝结对工程师和科学家来说至关重要，因为它影响热交换器和其他设备的热性能。膜状凝结的机制涉及在冷凝器或热交换器的表面上形成连续的液体层。当蒸气接触到较冷的表面时，它失去能量并转变为液态。与滴状凝结不同，后者是液滴形成并从表面掉落，膜状凝结则会形成均匀的膜，这可能由于液体层的绝缘特性而导致热传递效率降低。在实际应用中，可以在各种场景中观察到膜状凝结，例如在发电厂使用的蒸汽冷凝器中。在这里，来自涡轮机的蒸汽被冷却并凝结成水，然后流回锅炉。连续膜的存在可能会阻碍热传递速率，因此工程师必须设计能够最小化这种影响的系统。增强冷凝器的表面特性，例如使用疏水涂层，可以促进滴状凝结，而不是膜状凝结，从而提高整体效率。此外，理解膜状凝结不仅限于发电。它还在HVAC系统中发挥作用，在这些系统中，空气中的水分凝结可能导致能量损失和设备潜在损坏。通过设计有效管理膜状凝结的系统，工程师可以提高能源效率并延长HVAC组件的使用寿命。对膜状凝结的研究仍在不断发展，科学家们正在探索新材料和表面处理，以增强热传递速率。例如，纳米结构表面在促进更高效的凝结过程中显示出了希望。这些创新可能会导致依赖热管理的行业采取更可持续的做法。总之，膜状凝结是在传热领域中的一个关键概念，影响着各种热系统的性能。它的影响跨越多个行业，要求工程师和研究人员深入理解。通过专注于通过创新设计和材料来最小化膜状凝结的负面影响，我们可以提高能源效率，并为更可持续的工程实践做出贡献。