heat transfer by conduction

简明释义

热传导

英英释义

例句

1.A good example of heat transfer by conduction is when you place your hand on a warm radiator.

一个好的导热例子是当你把手放在温暖的散热器上。

2.The metal spoon feels warm when placed in a hot soup due to heat transfer by conduction.

金属勺子放在热汤中时会感到温暖，这是由于导热。

3.Insulating materials are designed to reduce heat transfer by conduction in buildings.

绝缘材料旨在减少建筑物中的导热。

4.When you touch a hot stove, you experience heat transfer by conduction, which is the process of thermal energy moving through direct contact.

当你触摸热炉子时，你体验到导热，这是通过直接接触传递热能的过程。

5.In cooking, heat transfer by conduction occurs when food is in direct contact with a heated pan.

在烹饪中，当食物与加热的锅直接接触时，会发生导热。

作文

Heat transfer is a fundamental concept in physics and engineering, and it plays a crucial role in many everyday applications. One of the primary methods of heat transfer is through conduction, which can be defined as the process of thermal energy moving from one material to another through direct contact. In this essay, we will explore the concept of heat transfer by conduction and its significance in various fields, including cooking, construction, and electronics.To begin with, heat transfer by conduction occurs when two objects at different temperatures come into contact with each other. The molecules in the hotter object vibrate more vigorously than those in the cooler object. As these molecules collide, they transfer some of their kinetic energy to the cooler molecules, resulting in a transfer of heat. This process continues until thermal equilibrium is reached, meaning both objects attain the same temperature.An everyday example of heat transfer by conduction can be observed while cooking. When a metal pan is placed on a stove, the heat from the burner is conducted through the metal to the food inside the pan. The metal conducts heat efficiently due to its high thermal conductivity, allowing the food to cook evenly. This principle is not only essential in cooking but also in designing cooking utensils that maximize heat transfer efficiency.In the field of construction, understanding heat transfer by conduction is vital for energy efficiency in buildings. Insulation materials are used to minimize heat loss during winter and heat gain during summer. For instance, walls and roofs are often insulated with materials that have low thermal conductivity, reducing the amount of heat that passes through them. By effectively managing heat transfer by conduction, builders can create comfortable living environments while also lowering energy costs.Moreover, heat transfer by conduction is a critical consideration in the design of electronic devices. As electronic components generate heat during operation, efficient heat dissipation is necessary to prevent overheating and ensure optimal performance. Heat sinks, made of materials with high thermal conductivity, are commonly used to absorb and dissipate heat away from sensitive components. This application of heat transfer by conduction is crucial in maintaining the longevity and reliability of electronic devices.In conclusion, heat transfer by conduction is an essential mechanism that affects many aspects of our daily lives. From cooking to building design and electronics, understanding how heat is transferred through direct contact allows us to improve efficiency and performance. As technology continues to advance, the principles of heat transfer by conduction will remain a fundamental aspect of science and engineering, highlighting the importance of thermal management in a wide range of applications.

热传递是物理和工程中的一个基本概念，在许多日常应用中发挥着至关重要的作用。热传递的主要方法之一是通过导热，这可以定义为热能通过直接接触从一种材料移动到另一种材料的过程。在本文中，我们将探讨导热的概念及其在烹饪、建筑和电子等多个领域的重要性。首先，当两个不同温度的物体接触时，就会发生导热。较热物体中的分子比较冷物体中的分子振动得更剧烈。当这些分子碰撞时，它们将一些动能转移给较冷的分子，从而导致热量的转移。这个过程会持续，直到达到热平衡，即两个物体达到相同的温度。在烹饪中，可以观察到导热的一个日常例子。当金属锅放在炉子上时，来自燃烧器的热量通过金属传导到锅内的食物。由于金属具有高导热性，能够有效地导热，使食物均匀加热。这一原理不仅在烹饪中至关重要，而且在设计最大化热传递效率的炊具时也很重要。在建筑领域，理解导热对于建筑的能源效率至关重要。绝缘材料用于减少冬季的热损失和夏季的热增益。例如，墙壁和屋顶通常用低导热性的材料进行绝缘，减少热量通过它们的传递。通过有效管理导热，建筑商可以创造舒适的居住环境，同时降低能源成本。此外，导热在电子设备设计中也是一个关键考虑因素。由于电子元件在工作过程中产生热量，因此有效的散热是防止过热并确保最佳性能所必需的。散热器通常由具有高导热性的材料制成，用于吸收和散发热量，从敏感组件中排出。这种导热的应用对于保持电子设备的耐用性和可靠性至关重要。总之，导热是一种影响我们日常生活多个方面的基本机制。从烹饪到建筑设计和电子产品，了解热量如何通过直接接触转移使我们能够提高效率和性能。随着科技的不断进步，导热的原理将继续成为科学和工程的基本方面，突显热管理在广泛应用中的重要性。