convection heat transfer

简明释义

对寥传达

英英释义

例句

1.In cooking, convection heat transfer 对流热传递 helps to evenly distribute heat in an oven, ensuring that food is cooked thoroughly.

在烹饪中，convection heat transfer 对流热传递 有助于在烤箱中均匀分配热量，确保食物被彻底烹饪。

2.The design of HVAC systems often relies on convection heat transfer 对流热传递 to effectively circulate warm or cool air throughout a building.

HVAC系统的设计通常依赖于convection heat transfer 对流热传递 来有效地在建筑物内循环温暖或冷却的空气。

3.In weather patterns, convection heat transfer 对流热传递 plays a crucial role in the formation of clouds and storms.

在天气模式中，convection heat transfer 对流热传递 在云和暴风雨的形成中起着至关重要的作用。

4.Engine cooling systems utilize convection heat transfer 对流热传递 to maintain optimal operating temperatures.

发动机冷却系统利用convection heat transfer 对流热传递 来维持最佳工作温度。

5.In a swimming pool, convection heat transfer 对流热传递 can help distribute heat from heaters more evenly throughout the water.

在游泳池中，convection heat transfer 对流热传递 可以帮助更均匀地分配来自加热器的热量。

作文

Convection is a fundamental mechanism of heat transfer that occurs in fluids, including liquids and gases. It plays a crucial role in various natural and industrial processes. Understanding convection heat transfer (对流传热) is essential for engineers, scientists, and anyone interested in thermodynamics. This essay will explore the principles of convection heat transfer (对流传热), its applications, and its significance in everyday life.At its core, convection heat transfer (对流传热) involves the movement of heat through a fluid due to the motion of the fluid itself. When a fluid is heated, it becomes less dense and tends to rise, while cooler, denser fluid sinks. This creates a circulation pattern known as convection currents. These currents are responsible for transferring heat from one part of the fluid to another, and they can occur naturally or be induced mechanically.Natural convection occurs when fluid motion is caused by buoyancy forces that result from density differences due to temperature variations. For example, when a pot of water is heated on a stove, the water at the bottom warms up, becomes less dense, and rises to the surface, while the cooler water descends to the bottom. This continuous cycle effectively transfers heat throughout the water until it reaches a uniform temperature. On the other hand, forced convection involves the use of external means, such as fans or pumps, to circulate the fluid. In many heating systems, air is blown over heated surfaces, enhancing the convection heat transfer (对流传热) process and allowing for more efficient heating. This principle is widely applied in HVAC (heating, ventilation, and air conditioning) systems, where maintaining a comfortable indoor climate relies heavily on effective convection heat transfer (对流传热).The efficiency of convection heat transfer (对流传热) can be influenced by several factors, including the properties of the fluid, the temperature difference between the fluid and the surface, and the flow velocity. For instance, increasing the flow rate of a fluid can enhance its heat transfer capabilities, making forced convection a preferred method in many industrial applications, such as chemical processing and power generation.In addition to its practical applications, convection heat transfer (对流传热) is also significant in natural phenomena. Weather patterns, ocean currents, and the heating of the Earth's atmosphere are all influenced by convection processes. For example, warm air rising and cool air sinking contribute to wind formation, while ocean currents help regulate global climate by redistributing heat across the planet.In conclusion, understanding convection heat transfer (对流传热) is vital for both scientific inquiry and practical applications. From everyday cooking to complex industrial processes, the principles of convection play a significant role in our lives. By harnessing the power of convection heat transfer (对流传热), we can improve energy efficiency, enhance comfort in our living spaces, and gain insights into the natural world around us. As technology continues to advance, the study of convection heat transfer (对流传热) will undoubtedly remain an important area of research and application.

对流是热传递的一种基本机制，发生在液体和气体等流体中。它在各种自然和工业过程中发挥着至关重要的作用。理解对流传热（convection heat transfer）对工程师、科学家以及任何对热力学感兴趣的人来说都是必不可少的。本文将探讨对流传热（convection heat transfer）的原理、应用及其在日常生活中的重要性。在其核心，对流传热（convection heat transfer）涉及通过流体本身的运动来转移热量。当流体被加热时，它变得密度较小，倾向于上升，而较冷、密度较大的流体则下沉。这就形成了一种称为对流电流的循环模式。这些电流负责将热量从流体的一部分转移到另一部分，并且可以自然发生或机械诱导。自然对流发生在由于温度变化导致密度差异而引起的浮力作用下。当一锅水在炉子上加热时，底部的水变热，密度降低，上升到表面，而较冷的水则下降到底部。这一持续的循环有效地将热量转移到整个水体，直到达到均匀温度。另一方面，强制对流涉及使用外部手段，如风扇或泵，来循环流体。在许多加热系统中，空气被吹过加热表面，从而增强了对流传热（convection heat transfer）过程，使加热更加高效。这一原理广泛应用于HVAC（供暖、通风和空调）系统，其中维持舒适的室内气候在很大程度上依赖于有效的对流传热（convection heat transfer）。对流传热（convection heat transfer）的效率会受到多个因素的影响，包括流体的属性、流体与表面之间的温差以及流动速度。例如，增加流体的流速可以增强其热传递能力，这使得强制对流在许多工业应用中成为首选，例如化学处理和发电。除了实际应用，对流传热（convection heat transfer）在自然现象中也具有重要意义。天气模式、海洋环流和地球大气的加热都受到对流过程的影响。例如，温暖的空气上升和凉爽的空气下沉促进了风的形成，而海洋环流通过重新分配热量来帮助调节全球气候。总之，理解对流传热（convection heat transfer）对科学研究和实际应用至关重要。从日常烹饪到复杂的工业过程，对流的原理在我们的生活中发挥着重要作用。通过利用对流传热（convection heat transfer）的力量，我们可以提高能效，增强居住空间的舒适度，并深入了解我们周围的自然世界。随着科技的不断进步，对流传热（convection heat transfer）的研究无疑将继续成为一个重要的研究和应用领域。