nucleate boiling

简明释义

核状沸腾

英英释义

例句

1.In our experiments, the rate of nucleate boiling 成核沸腾 was measured to determine the heat transfer coefficient.

在我们的实验中，测量了成核沸腾的速率，以确定热传递系数。

2.Engineers often design systems to optimize nucleate boiling 成核沸腾 for better thermal performance.

工程师们通常设计系统以优化成核沸腾以获得更好的热性能。

3.During the heating process, we observed that nucleate boiling 成核沸腾 occurred at the surface of the heated plate.

在加热过程中，我们观察到加热板表面发生了成核沸腾。

4.The presence of nucleation sites is crucial for initiating nucleate boiling 成核沸腾 in a liquid.

成核点的存在对于在液体中启动成核沸腾至关重要。

5.The efficiency of heat exchangers can be significantly improved by enhancing nucleate boiling 成核沸腾 conditions.

通过改善成核沸腾条件，可以显著提高热交换器的效率。

作文

Nucleate boiling is a phenomenon that occurs when a liquid is heated and forms bubbles at discrete points on a surface. This process plays a crucial role in many industrial applications, such as power generation, chemical processing, and heat exchangers. To understand the significance of nucleate boiling (成核沸腾), it is essential to explore its mechanisms and benefits in various systems.When a liquid is heated, the temperature rises until it reaches the boiling point. At this stage, if the surface is sufficiently hot, small vapor bubbles begin to form at nucleation sites, which are typically imperfections or rough spots on the heating surface. These bubbles grow as more heat is transferred from the surface to the liquid, eventually detaching and rising to the surface. This process of bubble formation and growth is what we refer to as nucleate boiling (成核沸腾).One of the key advantages of nucleate boiling (成核沸腾) is its efficiency in heat transfer. The presence of bubbles enhances the mixing of the liquid, allowing for better thermal conductivity. As bubbles rise through the liquid, they carry away heat from the surface, which can significantly improve the overall heat transfer coefficient. This characteristic makes nucleate boiling (成核沸腾) an ideal mechanism for cooling systems, where maintaining a stable temperature is critical.In many engineering applications, understanding nucleate boiling (成核沸腾) is vital for optimizing performance. For example, in nuclear reactors, the cooling of fuel rods relies heavily on efficient heat transfer through nucleate boiling (成核沸腾). If the boiling process is disrupted, it can lead to overheating and potentially catastrophic failures. Therefore, engineers must carefully design systems to promote stable nucleate boiling (成核沸腾) under various operational conditions.Moreover, the study of nucleate boiling (成核沸腾) extends beyond just industrial applications. It also plays a significant role in everyday life, such as in cooking. When water is boiled in a pot, the nucleate boiling (成核沸腾) process allows for efficient heat transfer from the stove to the water, resulting in a quicker boil time. Understanding this phenomenon can help individuals optimize their cooking methods and energy usage.Despite its advantages, nucleate boiling (成核沸腾) can also pose challenges. For instance, if the boiling process becomes too vigorous, it can lead to a phenomenon known as 'dry-out,' where the surface becomes exposed and overheated, causing damage. Engineers must therefore monitor and control the conditions under which nucleate boiling (成核沸腾) occurs to prevent such issues.In conclusion, nucleate boiling (成核沸腾) is a fundamental process with significant implications in both industrial applications and daily life. Its efficiency in heat transfer makes it a valuable mechanism in various systems, while also presenting challenges that require careful management. By understanding the principles behind nucleate boiling (成核沸腾), we can harness its benefits and mitigate potential risks, leading to safer and more efficient operations in numerous fields.

成核沸腾是一种现象，当液体被加热并在表面形成气泡时就会发生。这一过程在许多工业应用中发挥着至关重要的作用，如发电、化学加工和热交换器。要理解nucleate boiling（成核沸腾）的重要性，必须探讨其机制及在各种系统中的好处。当液体被加热时，温度上升直到达到沸点。在这个阶段，如果表面足够热，小的蒸汽气泡开始在成核位点形成，这通常是加热表面上的缺陷或粗糙点。这些气泡随着更多热量从表面传递到液体而生长，最终脱离并上升到表面。气泡的形成和生长过程就是我们所称的nucleate boiling（成核沸腾）。nucleate boiling（成核沸腾）的一个主要优点是其在热传递中的效率。气泡的存在增强了液体的混合，从而允许更好的热导率。随着气泡在液体中上升，它们带走表面的热量，这可以显著改善整体热传递系数。这一特性使得nucleate boiling（成核沸腾）成为冷却系统的理想机制，在这些系统中，保持稳定的温度至关重要。在许多工程应用中，理解nucleate boiling（成核沸腾）对优化性能至关重要。例如，在核反应堆中，燃料棒的冷却在很大程度上依赖于通过nucleate boiling（成核沸腾）的高效热传递。如果沸腾过程受到干扰，可能导致过热和潜在的灾难性故障。因此，工程师必须仔细设计系统，以促进在各种操作条件下稳定的nucleate boiling（成核沸腾）。此外，对nucleate boiling（成核沸腾）的研究不仅限于工业应用。它在日常生活中也扮演着重要角色，例如在烹饪中。当水在锅中煮沸时，nucleate boiling（成核沸腾）过程允许从炉子到水的高效热传递，从而缩短煮沸时间。理解这一现象可以帮助个人优化其烹饪方法和能源使用。尽管有其优点，nucleate boiling（成核沸腾）也可能带来挑战。例如，如果沸腾过程过于剧烈，可能导致所谓的“干涸”现象，即表面暴露并过热，造成损坏。因此，工程师必须监控和控制发生nucleate boiling（成核沸腾）的条件，以防止此类问题。总之，nucleate boiling（成核沸腾）是一个基本过程，在工业应用和日常生活中具有重要意义。其在热传递中的效率使其在各种系统中成为一种有价值的机制，同时也带来了需要谨慎管理的挑战。通过理解nucleate boiling（成核沸腾）背后的原理，我们可以利用其优势并减轻潜在风险，从而在多个领域实现更安全、更高效的操作。