coefficient of thermal conductivity

简明释义

导热系数

英英释义

例句

1.The coefficient of thermal conductivity of metals is generally higher than that of plastics.

金属的热导率通常高于塑料。

2.When selecting building materials, consider the coefficient of thermal conductivity for energy efficiency.

在选择建筑材料时，考虑热导率以提高能效。

3.The material's coefficient of thermal conductivity indicates how well it can conduct heat.

材料的热导率指示了它传导热量的能力。

4.Insulation materials typically have a low coefficient of thermal conductivity to minimize heat loss.

绝缘材料通常具有低的热导率以最小化热量损失。

5.A higher coefficient of thermal conductivity means better heat transfer properties.

更高的热导率意味着更好的热传导性能。

作文

Understanding the concept of thermal conductivity is essential in various fields such as engineering, physics, and material science. One of the key parameters that describe this property is the coefficient of thermal conductivity. The coefficient of thermal conductivity refers to the ability of a material to conduct heat. It is a measure of how quickly heat can be transferred through a substance when there is a temperature difference across it. This coefficient is vital for engineers and architects when designing buildings and selecting materials that will either retain heat or allow it to escape, depending on the desired outcome.The coefficient of thermal conductivity is usually denoted by the symbol 'k' and is measured in watts per meter-kelvin (W/m·K). Different materials have different values for this coefficient, which makes it crucial to understand when choosing materials for specific applications. For example, metals typically have high coefficients of thermal conductivity, making them excellent conductors of heat. In contrast, materials like wood and plastic have low values, indicating that they are poor conductors and are often used as insulators.In practical applications, knowing the coefficient of thermal conductivity allows engineers to calculate heat transfer rates in systems. For instance, in thermal insulation, materials with low coefficients of thermal conductivity are preferred to minimize heat loss in buildings. By using insulation materials effectively, energy consumption can be reduced, leading to lower heating costs and a smaller carbon footprint.Moreover, the coefficient of thermal conductivity can change with temperature and other environmental conditions. Therefore, it is important to consider the specific conditions under which a material will be used. For example, the thermal conductivity of some materials increases at higher temperatures, which can significantly affect their performance in high-heat applications.In addition to its practical applications, the coefficient of thermal conductivity also plays a significant role in scientific research. Understanding how different materials behave under varying thermal conditions can lead to the development of new materials with enhanced properties. Researchers are constantly looking for innovative ways to improve thermal management in electronic devices, where overheating can lead to failure. By manipulating the coefficient of thermal conductivity of materials, scientists aim to create better cooling systems that prolong the life of electronic components.In conclusion, the coefficient of thermal conductivity is a fundamental property that influences heat transfer in materials. Its importance spans across multiple disciplines, from construction and energy efficiency to advanced materials research. A thorough understanding of this coefficient enables professionals to make informed decisions about material selection, ultimately leading to more efficient and sustainable designs. As technology continues to advance, the significance of the coefficient of thermal conductivity will only grow, making it a crucial aspect of modern engineering and scientific exploration.

热导率的概念在工程、物理和材料科学等多个领域中都是至关重要的。其中一个描述这一特性的关键参数是热导率系数。热导率系数指的是材料导热的能力。它是衡量在物质中存在温差时，热量通过物质转移的速度的指标。这个系数对于工程师和建筑师在设计建筑和选择材料时至关重要，因为他们需要根据所需的结果选择能够保留热量或允许热量逃逸的材料。热导率系数通常用符号'k'表示，单位为瓦特每米开尔文（W/m·K）。不同材料的这个系数值各不相同，因此在选择特定应用的材料时理解这一点非常重要。例如，金属通常具有高热导率系数，使其成为良好的热导体。相比之下，木材和塑料的值较低，表明它们是导热性差的材料，通常用于绝缘材料。在实际应用中，了解热导率系数使工程师能够计算系统中的热传递速率。例如，在热绝缘中，优先选择低热导率系数的材料，以尽量减少建筑物中的热损失。通过有效使用绝缘材料，可以减少能源消耗，从而降低供暖成本，减少碳足迹。此外，热导率系数可能会随着温度和其他环境条件的变化而变化。因此，考虑材料将被使用的特定条件是非常重要的。例如，一些材料的热导率在高温下会增加，这可能会显著影响它们在高热应用中的性能。除了其实际应用外，热导率系数在科学研究中也发挥着重要作用。理解不同材料在不同热条件下的表现可以导致新材料的开发，具有更好的性能。研究人员不断寻找创新的方法来改善电子设备的热管理，因为过热可能导致故障。通过操控材料的热导率系数，科学家们旨在创造更好的冷却系统，从而延长电子组件的使用寿命。总之，热导率系数是影响材料热传递的基本属性。其重要性跨越多个学科，从建筑和能源效率到先进材料研究。对该系数的透彻理解使专业人士能够做出明智的材料选择，最终导致更高效和可持续的设计。随着技术的不断进步，热导率系数的重要性只会增加，使其成为现代工程和科学探索中的关键方面。