coefficient of heat transfer

简明释义

传热系数

英英释义

例句

1.The engineer calculated the coefficient of heat transfer 热传递系数 for the new insulation material to ensure energy efficiency.

工程师计算了新绝缘材料的热传递系数 coefficient of heat transfer，以确保能效。

2.The coefficient of heat transfer 热传递系数 can vary based on the surface roughness of materials.

材料的表面粗糙度会影响热传递系数 coefficient of heat transfer。

3.During the experiment, we measured the coefficient of heat transfer 热传递系数 between the fluid and the pipe wall.

在实验过程中，我们测量了流体与管壁之间的热传递系数 coefficient of heat transfer。

4.A higher coefficient of heat transfer 热传递系数 indicates better thermal performance in building materials.

更高的热传递系数 coefficient of heat transfer 表示建筑材料具有更好的热性能。

5.In HVAC systems, the coefficient of heat transfer 热传递系数 is crucial for determining how effectively heat is exchanged.

在暖通空调系统中，热传递系数 coefficient of heat transfer 对于确定热量交换的有效性至关重要。

作文

The concept of the coefficient of heat transfer plays a crucial role in understanding thermal dynamics in various engineering applications. At its core, the coefficient of heat transfer is a measure of how effectively heat energy is transferred between two mediums. This coefficient is influenced by several factors, including the nature of the materials involved, the surface area through which heat is being transferred, and the temperature difference between the two mediums. Engineers often utilize this coefficient to design systems that require efficient thermal management, such as heating, ventilation, and air conditioning (HVAC) systems, as well as in the development of thermal insulation materials.In practical terms, the coefficient of heat transfer can be expressed mathematically using Fourier's law of heat conduction, which states that the rate of heat transfer is proportional to the temperature gradient and the area through which heat is being conducted. This relationship highlights the importance of understanding material properties and environmental conditions when calculating heat transfer rates. For instance, metals typically have high coefficient of heat transfer values, making them excellent conductors of heat, while insulative materials like fiberglass or foam exhibit low coefficients, thus resisting heat flow.Furthermore, the coefficient of heat transfer is not static; it can change with varying conditions. For example, in a fluid medium, factors such as fluid velocity, viscosity, and temperature can significantly impact the coefficient. In forced convection scenarios, where a fluid is moved over a surface, the coefficient of heat transfer can be increased by enhancing the flow rate, which increases turbulence and improves heat exchange efficiency.Understanding the coefficient of heat transfer is also vital in the context of energy conservation and sustainability. By optimizing the heat transfer characteristics of building materials, architects and engineers can design structures that minimize energy consumption for heating and cooling. For instance, using materials with favorable coefficient of heat transfer properties can lead to reduced energy costs and a lower carbon footprint, aligning with global efforts to combat climate change.In conclusion, the coefficient of heat transfer is a fundamental parameter in thermal engineering that influences the design and efficiency of numerous systems. As technology advances, the ability to manipulate and optimize this coefficient will play an increasingly important role in developing sustainable solutions across various industries. Whether in creating more efficient HVAC systems, improving insulation materials, or enhancing industrial processes, a deep understanding of the coefficient of heat transfer is essential for engineers and scientists alike. Therefore, further research and education on this topic will continue to be critical as we strive for greater energy efficiency and sustainability in our modern world.

热传导系数的概念在理解各种工程应用中的热动力学方面起着至关重要的作用。 从本质上讲，热传导系数是衡量热能在两个介质之间传递效率的指标。 这个系数受到多个因素的影响，包括参与材料的性质、热量传递的表面积以及两个介质之间的温度差。 工程师通常利用该系数设计需要有效热管理的系统，例如供暖、通风和空调（HVAC）系统，以及开发热绝缘材料。在实际应用中，热传导系数可以使用傅里叶热传导定律进行数学表达，该定律指出，热传递速率与温度梯度和热量传递的面积成正比。 这种关系突显了在计算热传递速率时理解材料特性和环境条件的重要性。 例如，金属通常具有较高的热传导系数值，使其成为良好的热导体，而绝缘材料如玻璃纤维或泡沫则表现出较低的系数，从而抵抗热流。此外，热传导系数不是静态的；它可以随着条件的变化而改变。 例如，在流体介质中，流体速度、粘度和温度等因素会显著影响系数。 在强制对流场景中，当流体在表面上移动时，通过增强流速来增加热传导系数，这会增加湍流并提高热交换效率。理解热传导系数在节能和可持续性方面也至关重要。 通过优化建筑材料的热传递特性，建筑师和工程师可以设计出能最大限度减少供暖和制冷能耗的结构。 例如，使用具有良好热传导系数特性的材料可以降低能源成本和碳足迹，与全球应对气候变化的努力相一致。总之，热传导系数是热工程中的一个基本参数，影响着众多系统的设计和效率。 随着技术的进步，操控和优化这一系数的能力将在开发各个行业的可持续解决方案中发挥越来越重要的作用。 无论是在创建更高效的HVAC系统、改善绝缘材料，还是增强工业过程方面，对热传导系数的深刻理解对于工程师和科学家来说都是必不可少的。 因此，进一步研究和教育这一主题将继续对我们在现代世界中追求更高的能源效率和可持续性至关重要。