transfer of heat

简明释义

传热

英英释义

例句

1.The transfer of heat in a metal rod occurs when one end is heated, causing the other end to become warm as well.

当金属棒的一端被加热时，导致另一端变暖，这就是热量传递的过程。

2.Insulation in buildings reduces the transfer of heat between the inside and outside environment.

建筑物中的绝缘材料减少了室内和室外环境之间的热量传递。

3.The transfer of heat from the sun warms the earth's surface.

太阳的热量传递使地球表面变暖。

4.The transfer of heat through conduction is why metal feels colder than wood at the same temperature.

在相同温度下，金属感觉比木材更冷是因为导热过程中发生了热量传递。

5.In cooking, the transfer of heat from the stove to the pot is essential for boiling water.

在烹饪中，炉子到锅的热量传递对于煮沸水是至关重要的。

作文

The concept of transfer of heat is fundamental to understanding the principles of thermodynamics and energy flow in our environment. Heat is a form of energy that can be transferred from one system to another, and this transfer occurs through various mechanisms such as conduction, convection, and radiation. Each of these mechanisms plays a crucial role in how we experience temperature changes in our daily lives. To begin with, let's explore conduction, which is the process of heat transfer through direct contact between materials. When you touch a hot stove, for instance, the heat from the stove is transferred to your hand via conduction. This is because the molecules in the hot stove are vibrating rapidly and collide with the slower-moving molecules in your skin, transferring energy in the process. The efficiency of conduction depends on the materials involved; metals, for example, are excellent conductors of heat, while wood and plastic are poor conductors. Understanding the transfer of heat through conduction is essential in fields like engineering, where materials must be chosen based on their thermal properties to ensure safety and efficiency.Next, we have convection, which is the transfer of heat through fluids (liquids and gases) caused by the movement of the fluid itself. When water is heated in a pot, the water at the bottom becomes warm and rises to the top, while the cooler water descends to the bottom to replace it. This continuous cycle creates a convection current. The transfer of heat in this manner is vital for many natural processes, including weather patterns and ocean currents. In homes, understanding convection helps us design better heating and cooling systems, ensuring that our living spaces remain comfortable throughout the year.Lastly, radiation is the transfer of heat in the form of electromagnetic waves. Unlike conduction and convection, radiation does not require a medium to transfer heat, which is why we can feel the warmth of the sun even when we are standing in the shade. The transfer of heat through radiation is significant in our daily lives, influencing everything from climate change to the design of energy-efficient buildings. Architects often consider how sunlight enters a building to maximize natural heating and minimize reliance on artificial heating systems.In conclusion, the transfer of heat is a critical concept that affects various aspects of our lives, from the way we cook our food to how we maintain comfortable living environments. By understanding the different methods of heat transfer—conduction, convection, and radiation—we can make informed decisions about energy use, material selection, and environmental conservation. As we continue to face challenges related to energy consumption and climate change, a deeper comprehension of the transfer of heat will be essential for developing sustainable solutions that benefit both society and the planet.

热量转移的概念对于理解热力学和我们环境中能量流动的原理至关重要。热量是一种能量形式，可以从一个系统转移到另一个系统，这种转移通过导热、对流和辐射等多种机制发生。这些机制在我们日常生活中体验温度变化的方式上发挥着关键作用。首先，让我们探讨导热，这是通过材料之间的直接接触进行的热量转移过程。例如，当你触摸热炉时，炉子的热量通过导热转移到你的手上。这是因为热炉中的分子振动迅速，与皮肤中运动较慢的分子碰撞，从而转移能量。导热的效率取决于所涉及的材料；例如，金属是良好的导热体，而木材和塑料则是较差的导热体。理解导热的热量转移在工程等领域至关重要，因为必须根据材料的热性能选择材料，以确保安全和效率。接下来是对流，这是通过流体（液体和气体）因流体自身的运动而发生的热量转移。当水在锅中加热时，底部的水变暖并上升到顶部，而较冷的水则下降到底部以取而代之。这一持续循环产生了对流电流。以这种方式的热量转移对许多自然过程至关重要，包括天气模式和海洋电流。在家庭中，理解对流有助于我们设计更好的供暖和制冷系统，确保我们的居住空间在一年四季保持舒适。最后，辐射是以电磁波的形式进行的热量转移。与导热和对流不同，辐射不需要介质来转移热量，这就是为什么我们即使站在阴凉处也能感受到阳光的温暖。通过辐射的热量转移在我们的日常生活中具有重要意义，影响着从气候变化到节能建筑设计的一切。建筑师通常考虑阳光如何进入建筑，以最大化自然采暖并最小化对人工供暖系统的依赖。总之，热量转移是一个关键概念，影响着我们生活的各个方面，从我们烹饪食物的方式到我们如何维持舒适的生活环境。通过理解热量转移的不同方法——导热、对流和辐射——我们可以就能源使用、材料选择和环境保护做出明智的决定。随着我们继续面临与能源消耗和气候变化相关的挑战，对热量转移的更深入理解将对开发可持续解决方案至关重要，这些解决方案将造福社会和地球。