thermal conductivity

简明释义

导热率

英英释义

例句

1.Metals typically have high thermal conductivity, making them ideal for heat sinks.

金属通常具有高热导率，使其成为散热器的理想材料。

2.The thermal conductivity of concrete can vary significantly depending on its composition.

混凝土的热导率可能因其组成而有显著变化。

3.When selecting a heating element, consider the thermal conductivity of the materials involved.

在选择加热元件时，考虑所涉及材料的热导率。

4.The material's thermal conductivity is crucial for determining its insulation properties.

材料的热导率对于确定其绝缘性能至关重要。

5.Insulating materials are designed to have low thermal conductivity to minimize heat loss.

绝缘材料的设计旨在具有低热导率以最小化热损失。

作文

Thermal conductivity is a fundamental property of materials that describes their ability to conduct heat. In simple terms, it indicates how well a material can transfer thermal energy from one part to another. The concept of thermal conductivity (热导率) is crucial in various fields, including engineering, physics, and environmental science. Understanding this property helps us design better insulation materials, improve energy efficiency, and develop advanced technologies.For instance, metals typically have high thermal conductivity (热导率), which means they can quickly transfer heat. This is why metals are often used in cooking utensils. When you heat a metal pan on the stove, the heat rapidly moves through the material, allowing food to cook evenly. On the other hand, materials like wood or plastic have low thermal conductivity (热导率), making them excellent insulators. They resist heat flow, which is why wooden handles are often found on pots and pans; they prevent burns by keeping the heat away from your hands.In construction, understanding thermal conductivity (热导率) is essential for creating energy-efficient buildings. Insulation materials, such as fiberglass or foam, are designed to have low thermal conductivity (热导率), which helps maintain a stable indoor temperature. By minimizing heat loss in winter and heat gain in summer, these materials contribute to lower energy bills and a reduced carbon footprint.Moreover, thermal conductivity (热导率) plays a significant role in electronics. As devices become more compact and powerful, managing heat becomes increasingly important. High-performance computer chips generate a lot of heat, and materials with high thermal conductivity (热导率) are used in heat sinks to dissipate this heat effectively. This prevents overheating, ensuring that devices operate efficiently and have a longer lifespan.In the realm of renewable energy, thermal conductivity (热导率) is vital for solar thermal collectors. These devices absorb sunlight and convert it into heat, which is then transferred to a fluid. Materials with high thermal conductivity (热导率) are preferred for the collector surfaces to maximize heat absorption and transfer, enhancing the overall efficiency of solar energy systems.The measurement of thermal conductivity (热导率) is typically expressed in watts per meter-kelvin (W/m·K). Different materials exhibit varying levels of thermal conductivity (热导率); for example, copper has a thermal conductivity (热导率) of about 400 W/m·K, while air has a thermal conductivity (热导率) of around 0.025 W/m·K. This vast difference highlights why certain materials are chosen for specific applications based on their heat transfer capabilities.In conclusion, thermal conductivity (热导率) is a critical property that influences many aspects of our daily lives, from cooking and construction to electronics and renewable energy. By understanding and utilizing materials with appropriate thermal conductivity (热导率), we can enhance energy efficiency, improve safety, and promote sustainability. As technology advances, the importance of thermal conductivity (热导率) will only continue to grow, driving innovation and development in numerous industries.

热导率是材料的一个基本性质，它描述了材料传导热量的能力。简单来说，它表明材料如何有效地将热能从一个部分转移到另一个部分。热导率（thermal conductivity）的概念在工程、物理和环境科学等多个领域中至关重要。理解这一性质有助于我们设计更好的绝缘材料，提高能源效率，并开发先进技术。例如，金属通常具有高热导率（thermal conductivity），这意味着它们能够快速传递热量。这就是为什么金属常被用在烹饪器具上的原因。当你在炉子上加热一个金属锅时，热量会迅速穿过材料，使食物均匀受热。另一方面，像木材或塑料这样的材料具有低热导率（thermal conductivity），使它们成为优秀的绝缘体。它们抵抗热流，这就是为什么锅和煎锅上常常有木制把手；它们通过将热量远离你的手来防止烫伤。在建筑中，理解热导率（thermal conductivity）对于创建节能建筑至关重要。绝缘材料，如玻璃纤维或泡沫，旨在具有低热导率（thermal conductivity），这有助于保持室内温度稳定。通过最小化冬季的热损失和夏季的热增益，这些材料有助于降低能源账单并减少碳足迹。此外，热导率（thermal conductivity）在电子产品中也发挥着重要作用。随着设备变得越来越紧凑和强大，管理热量变得愈发重要。高性能计算机芯片产生大量热量，具有高热导率（thermal conductivity）的材料被用于散热器，以有效散发这些热量。这防止了过热，确保设备高效运行并延长使用寿命。在可再生能源领域，热导率（thermal conductivity）对太阳能热收集器至关重要。这些设备吸收阳光并将其转化为热量，然后转移到液体中。优选具有高热导率（thermal conductivity）的材料用于收集器表面，以最大限度地提高热吸收和转移，从而增强太阳能系统的整体效率。热导率（thermal conductivity）的测量通常以瓦特每米开尔文（W/m·K）表示。不同材料表现出不同程度的热导率（thermal conductivity）；例如，铜的热导率（thermal conductivity）约为400 W/m·K，而空气的热导率（thermal conductivity）约为0.025 W/m·K。这种巨大的差异突显了为什么在特定应用中选择某些材料基于其热传导能力。总之，热导率（thermal conductivity）是影响我们日常生活许多方面的关键属性，从烹饪和建筑到电子产品和可再生能源。通过理解和利用适当的热导率（thermal conductivity）材料，我们可以提高能源效率，改善安全性，促进可持续发展。随着技术的进步，热导率（thermal conductivity）的重要性只会继续增长，推动众多行业的创新和发展。