film coefficient of heat transfer

简明释义

薄膜传热系数

英英释义

例句

1.The film coefficient of heat transfer 热传递膜系数 is crucial in designing efficient heat exchangers.

热交换器的设计中，热传递膜系数 film coefficient of heat transfer 是至关重要的。

2.In fluid dynamics, the film coefficient of heat transfer 热传递膜系数 affects the cooling rates of various systems.

在流体动力学中，热传递膜系数 film coefficient of heat transfer 影响各种系统的冷却速率。

3.Engineers often calculate the film coefficient of heat transfer 热传递膜系数 to optimize thermal performance.

工程师通常计算 热传递膜系数 film coefficient of heat transfer 以优化热性能。

4.The film coefficient of heat transfer 热传递膜系数 can vary significantly with different fluid velocities.

不同流体速度下，热传递膜系数 film coefficient of heat transfer 可以有显著变化。

5.Understanding the film coefficient of heat transfer 热传递膜系数 helps in predicting heat loss in buildings.

了解 热传递膜系数 film coefficient of heat transfer 有助于预测建筑物的热损失。

作文

In the field of thermodynamics and heat transfer, understanding the concept of the film coefficient of heat transfer is crucial for engineers and scientists alike. This coefficient represents the efficiency with which heat is transferred between a solid surface and a fluid in motion over that surface. The film coefficient of heat transfer (热传递膜系数) is influenced by various factors, including the nature of the fluid, its velocity, temperature, and the properties of the surface it interacts with.When we consider a practical example, such as a heating element submerged in water, the film coefficient of heat transfer plays a significant role in determining how quickly the water reaches the desired temperature. If the heating element has a high film coefficient of heat transfer (热传递膜系数), it indicates that heat is being transferred efficiently from the element to the water, resulting in a faster heating process. Conversely, a low coefficient suggests poor heat transfer, leading to inefficient heating and longer wait times.The calculation of the film coefficient of heat transfer can be complex, as it often requires empirical data and correlations derived from experimental results. Engineers use these calculations to design systems that optimize heat transfer, ensuring energy efficiency and effectiveness in processes such as heating, cooling, and refrigeration.Moreover, the film coefficient of heat transfer is not constant; it varies under different conditions. For instance, during laminar flow, the coefficient is typically lower due to the smooth flow of fluid layers, while turbulent flow enhances mixing and increases the coefficient. This variation is vital when designing heat exchangers, where maximizing the film coefficient of heat transfer (热传递膜系数) can lead to significant improvements in performance.Understanding the film coefficient of heat transfer also aids in troubleshooting and optimizing existing systems. For example, if a cooling system is not performing as expected, engineers might analyze the film coefficient of heat transfer to identify potential issues such as fouling or changes in fluid properties that could hinder heat transfer.In conclusion, the film coefficient of heat transfer is a fundamental parameter in heat transfer analysis. Its significance cannot be overstated, as it directly impacts the efficiency of thermal systems. By mastering the principles surrounding the film coefficient of heat transfer (热传递膜系数), professionals can enhance their designs, improve energy efficiency, and ensure optimal performance in various applications. As technology advances and new materials are developed, the study of this coefficient will continue to evolve, providing even greater insights into the dynamics of heat transfer.

在热力学和热传递领域，理解热传递膜系数的概念对于工程师和科学家来说至关重要。该系数表示热量在固体表面与流体之间的传递效率。热传递膜系数受到多种因素的影响，包括流体的性质、速度、温度以及其与之相互作用的表面的特性。当我们考虑一个实际例子，比如浸入水中的加热元件时，热传递膜系数在决定水达到所需温度的速度方面发挥着重要作用。如果加热元件的热传递膜系数较高，这表明热量从元件有效地传递到水中，从而导致加热过程更快。相反，低系数则表示热传递不良，导致加热效率低下和更长的等待时间。计算热传递膜系数可能比较复杂，因为它通常需要经验数据和从实验结果得出的相关性。工程师使用这些计算来设计优化热传递的系统，确保能源效率和在加热、冷却和制冷等过程中效果显著。此外，热传递膜系数并不是一个常数；它在不同条件下会有所变化。例如，在层流情况下，由于流体层的平滑流动，系数通常较低，而湍流流动则增强了混合并提高了系数。这种变化在设计热交换器时至关重要，最大化热传递膜系数（热传递膜系数）可以显著改善性能。理解热传递膜系数还帮助故障排除和优化现有系统。例如，如果冷却系统的性能不如预期，工程师可能会分析热传递膜系数以识别可能的问题，例如污垢或流体特性变化，这可能会阻碍热传递。总之，热传递膜系数是热传递分析中的一个基本参数。它的重要性不容小觑，因为它直接影响热系统的效率。通过掌握围绕热传递膜系数（热传递膜系数）的原理，专业人员可以增强他们的设计，提高能源效率，并确保在各种应用中的最佳性能。随着技术的进步和新材料的开发，对该系数的研究将继续发展，为热传递动态提供更深入的见解。