heat-transfer coefficient

简明释义

传热系数

英英释义

例句

1.The researcher studied the effects of surface roughness on the heat-transfer coefficient 热传递系数 in pipes.

研究人员研究了表面粗糙度对管道中热传递系数的影响。

2.To improve the heat-transfer coefficient 热传递系数, various materials with high thermal conductivity were tested.

为了提高热传递系数，测试了多种具有高导热性的材料。

3.A higher heat-transfer coefficient 热传递系数 indicates better thermal performance in heat exchangers.

更高的热传递系数表示换热器的热性能更好。

4.In HVAC systems, the heat-transfer coefficient 热传递系数 is crucial for energy efficiency.

在暖通空调系统中，热传递系数对能源效率至关重要。

5.The engineer calculated the heat-transfer coefficient 热传递系数 to optimize the cooling system.

工程师计算了热传递系数以优化冷却系统。

作文

The concept of the heat-transfer coefficient is fundamental in the field of thermodynamics and heat transfer. It serves as a crucial parameter for engineers and scientists when designing systems that involve heat exchange, such as heat exchangers, radiators, and HVAC systems. Understanding the heat-transfer coefficient enables professionals to predict how efficiently heat will be transferred between two surfaces in contact, which is vital for ensuring optimal performance and energy efficiency in various applications.To grasp the significance of the heat-transfer coefficient, one must first understand what it represents. The heat-transfer coefficient quantifies the rate of heat transfer per unit area per unit temperature difference between two mediums. In simpler terms, it indicates how well heat can flow from one material to another under specific conditions. This coefficient is influenced by several factors, including the nature of the materials involved, the surface roughness, and the flow conditions of the fluid (whether it is laminar or turbulent).In practical applications, the heat-transfer coefficient plays a vital role in thermal management. For instance, in the design of a heat exchanger, engineers must calculate the heat-transfer coefficient to ensure that the device can effectively transfer heat between two fluids without excessive temperature loss. If the coefficient is too low, the heat exchanger may not perform efficiently, leading to increased energy consumption and operational costs.Moreover, the heat-transfer coefficient is also critical in the context of HVAC systems. These systems are designed to maintain comfortable indoor temperatures by regulating heat transfer between the inside and outside environments. By understanding the heat-transfer coefficient of various building materials, engineers can optimize insulation and heating/cooling strategies to minimize energy waste.Furthermore, the heat-transfer coefficient can vary depending on whether heat transfer occurs through conduction, convection, or radiation. For example, in conduction, the heat-transfer coefficient is determined by the thermal conductivity of the materials involved, while in convection, it is influenced by fluid velocity and properties. This variability makes it essential for engineers to consider the specific heat transfer mechanisms at play in their designs.In conclusion, the heat-transfer coefficient is an indispensable concept in the study of heat transfer and thermodynamics. Its ability to characterize the efficiency of heat transfer processes allows for better design and optimization of thermal systems. Whether in industrial applications or residential heating and cooling, understanding and calculating the heat-transfer coefficient is crucial for achieving energy efficiency and effective thermal management. As technology advances and the demand for energy-efficient solutions increases, the importance of mastering the heat-transfer coefficient will only grow, underscoring its relevance in modern engineering and environmental sustainability.

热传递系数的概念在热力学和热传递领域中是基础性的。它作为一个关键参数，对于工程师和科学家在设计涉及热交换的系统时（如热交换器、散热器和暖通空调系统）至关重要。理解热传递系数使专业人士能够预测两个接触表面之间热量的传递效率，这对于确保各种应用中的最佳性能和能源效率是至关重要的。要掌握热传递系数的重要性，首先必须理解它所代表的含义。热传递系数量化了单位面积每单位温度差下的热传递速率。简单来说，它表明在特定条件下，热量从一种材料流向另一种材料的能力。这个系数受到多种因素的影响，包括所涉及材料的性质、表面粗糙度和流体的流动条件（无论是层流还是湍流）。在实际应用中，热传递系数在热管理中发挥着至关重要的作用。例如，在热交换器的设计中，工程师必须计算热传递系数，以确保该设备能够有效地在两种流体之间传递热量，而不会导致过多的温度损失。如果系数过低，热交换器可能无法高效运行，从而导致能耗增加和运营成本上升。此外，热传递系数在暖通空调系统的背景下也至关重要。这些系统旨在通过调节室内和室外环境之间的热传递来保持舒适的室内温度。通过了解各种建筑材料的热传递系数，工程师可以优化绝缘和加热/冷却策略，以最大程度地减少能源浪费。此外，热传递系数也会因热传递通过导热、对流或辐射而有所不同。例如，在导热过程中，热传递系数由所涉及材料的导热率决定，而在对流中，则受流体速度和性质的影响。这种变化性使得工程师在设计时考虑具体的热传递机制变得至关重要。总之，热传递系数是热传递和热力学研究中不可或缺的概念。它能够表征热传递过程的效率，使热系统的设计和优化成为可能。无论是在工业应用还是住宅供暖和制冷中，理解和计算热传递系数对于实现能源效率和有效的热管理至关重要。随着技术的进步和对节能解决方案需求的增加，掌握热传递系数的重要性将只会增加，突显其在现代工程和环境可持续性中的相关性。