film boiling

简明释义

膜层沸腾

英英释义

例句

1.During the experiment, we observed that the liquid reached a state of film boiling 薄膜沸腾 when the temperature exceeded 100 degrees Celsius.

在实验中，我们观察到液体在温度超过100摄氏度时达到了薄膜沸腾的状态。

2.The phenomenon of film boiling 薄膜沸腾 occurs when vapor forms a continuous layer on the surface.

当蒸汽在表面形成连续层时，会发生薄膜沸腾现象。

3.The efficiency of heat transfer can be significantly affected by the presence of film boiling 薄膜沸腾 in industrial applications.

在工业应用中，薄膜沸腾的存在可以显著影响热传递的效率。

4.In the cooling process, film boiling 薄膜沸腾 can lead to inadequate heat removal, causing potential overheating.

在冷却过程中，薄膜沸腾可能导致热量去除不足，从而引起潜在的过热。

5.Researchers are studying how to control film boiling 薄膜沸腾 to improve the safety of nuclear reactors.

研究人员正在研究如何控制薄膜沸腾以提高核反应堆的安全性。

作文

Film boiling is a fascinating phenomenon that occurs when a liquid is heated to a temperature above its boiling point. This process involves the formation of a vapor film that insulates the liquid from the heat source, leading to unique thermal behaviors. In this essay, we will explore the concept of film boiling and its implications in various fields such as engineering, cooking, and even in natural processes.To begin with, film boiling can be understood as a stage in the boiling process where the liquid forms a continuous layer of vapor on the surface of the heating element. This vapor layer acts as an insulator, preventing direct contact between the liquid and the heat source. As a result, the heat transfer rate decreases significantly, which can lead to an increase in the temperature of the liquid. This phenomenon is particularly interesting because it contrasts with nucleate boiling, where bubbles form and collapse on the surface, allowing for efficient heat transfer.In engineering applications, understanding film boiling is crucial for designing efficient heat exchangers and cooling systems. For instance, in nuclear reactors, maintaining optimal cooling is essential to prevent overheating. Engineers must account for the transition from nucleate boiling to film boiling, as this shift can dramatically affect the system's efficiency and safety. If a cooling system enters the film boiling regime, it may lead to inadequate cooling and potential overheating of reactor components.Moreover, film boiling also has practical implications in cooking. When frying food, for example, the oil reaches temperatures that can induce film boiling. The formation of a vapor film around the food can create a barrier that affects how quickly the food cooks. Chefs often need to manage the temperature carefully to avoid entering the film boiling regime, as it can lead to uneven cooking or a burnt exterior while leaving the inside undercooked.Additionally, film boiling is observed in nature, particularly in the context of volcanic eruptions. When magma comes into contact with water, it can create a rapid phase change, leading to the formation of steam and the potential for explosive eruptions. Understanding this process requires a grasp of film boiling dynamics, as the interaction between the hot magma and cooler water can lead to significant geological events.In conclusion, film boiling is a complex and intriguing phenomenon that plays a significant role in various scientific and practical contexts. From engineering challenges in heat transfer systems to culinary techniques in the kitchen, the understanding of film boiling can enhance our ability to manipulate heat and improve efficiency. As we continue to study this phenomenon, we can uncover new applications and insights that may lead to advancements across multiple disciplines. Therefore, recognizing the importance of film boiling not only enriches our knowledge but also opens the door to innovative solutions in technology and science.

膜沸腾是一个迷人的现象，发生在液体被加热到其沸点以上的温度时。这个过程涉及到一层蒸汽膜的形成，该膜将液体与热源隔离，从而导致独特的热行为。在这篇文章中，我们将探讨膜沸腾的概念及其在工程、烹饪甚至自然过程中的影响。首先，膜沸腾可以理解为沸腾过程中的一个阶段，在这一阶段，液体在加热元件的表面形成一层连续的蒸汽。这个蒸汽层充当绝缘体，防止液体与热源直接接触。因此，热传递速率显著降低，这可能导致液体温度的升高。这个现象特别有趣，因为它与成核沸腾形成对比，在成核沸腾中，气泡在表面形成并崩溃，从而允许高效的热传递。在工程应用中，理解膜沸腾对于设计高效的热交换器和冷却系统至关重要。例如，在核反应堆中，保持最佳冷却对于防止过热是必不可少的。工程师必须考虑从成核沸腾到膜沸腾的转变，因为这种转变会显著影响系统的效率和安全性。如果冷却系统进入膜沸腾状态，可能导致冷却不足，进而导致反应堆组件的过热。此外，膜沸腾在烹饪中也具有实际意义。例如，在油炸食物时，油达到可以引发膜沸腾的温度。围绕食物形成的蒸汽膜可以创建一个屏障，影响食物熟透的速度。厨师们常常需要仔细管理温度，以避免进入膜沸腾状态，因为这可能导致不均匀的烹饪或外部烧焦而内部未熟。此外，膜沸腾在自然界中也有所观察，特别是在火山喷发的背景下。当岩浆与水接触时，可能会造成快速的相变，导致蒸汽的形成以及潜在的爆炸性喷发。理解这一过程需要掌握膜沸腾的动态，因为热岩浆与冷水之间的相互作用可能导致重大的地质事件。总之，膜沸腾是一个复杂而引人入胜的现象，在各种科学和实际背景中发挥着重要作用。从热传递系统中的工程挑战到厨房中的烹饪技巧，对膜沸腾的理解可以增强我们操控热量和提高效率的能力。随着我们继续研究这一现象，我们可以发现新的应用和见解，可能会导致多个学科的进步。因此，认识到膜沸腾的重要性不仅丰富了我们的知识，也为技术和科学中的创新解决方案打开了大门。