radiative heat transfer

简明释义

辐射传热

英英释义

例句

1.The design of solar panels relies heavily on radiative heat transfer 辐射热传递 principles to maximize energy absorption.

太阳能电池板的设计在很大程度上依赖于辐射热传递 radiative heat transfer 原理，以最大化能量吸收。

2.In space, the only way for objects to lose heat is through radiative heat transfer 辐射热传递, as there is no atmosphere.

在太空中，物体失去热量的唯一方式是通过辐射热传递 radiative heat transfer，因为没有大气层。

3.The efficiency of a furnace can be improved by optimizing radiative heat transfer 辐射热传递 between its components.

通过优化其组件之间的辐射热传递 radiative heat transfer，可以提高炉子的效率。

4.Engineers must consider radiative heat transfer 辐射热传递 when designing thermal insulation for buildings.

工程师在为建筑设计热绝缘时必须考虑辐射热传递 radiative heat transfer。

5.In cooking, understanding radiative heat transfer 辐射热传递 helps chefs achieve better results with broiling and grilling.

在烹饪中，理解辐射热传递 radiative heat transfer 有助于厨师在烤制和烧烤时获得更好的效果。

作文

In the realm of thermodynamics, one of the fundamental mechanisms of heat transfer is known as radiative heat transfer. This process involves the transfer of thermal energy through electromagnetic waves, primarily in the form of infrared radiation. Unlike conduction and convection, which require a medium such as solid or liquid for heat transfer, radiative heat transfer can occur even in a vacuum. This unique characteristic allows it to play a crucial role in various natural phenomena and technological applications.To better understand radiative heat transfer, let’s consider the sun as a primary example. The sun emits energy in the form of electromagnetic radiation, which travels through the vacuum of space and reaches the Earth. Upon arrival, this energy is absorbed by the Earth's surface, warming it and subsequently transferring heat to the surrounding air through convection. This process illustrates how radiative heat transfer is essential for maintaining life on our planet.In addition to natural processes, radiative heat transfer is also significant in engineering and design. For instance, in the construction of buildings, architects must consider the effects of solar radiation on heating and cooling. By utilizing materials with specific radiative properties, they can enhance energy efficiency. Reflective surfaces can minimize heat absorption, while darker materials can absorb more heat, thus influencing the overall temperature regulation within a structure.Moreover, radiative heat transfer plays a vital role in thermal insulation technologies. Insulating materials are often designed to reduce the amount of heat lost through radiation. For example, double-glazed windows utilize a layer of gas between two panes of glass to minimize radiative heat transfer. This is particularly important in colder climates, where retaining heat is essential for comfort and energy savings.Another interesting application of radiative heat transfer is found in the field of space exploration. In space, where there is no atmosphere, spacecraft rely solely on radiative heat transfer to regulate their temperature. Engineers must carefully design thermal control systems that manage the heat generated by onboard equipment and the heat absorbed from the sun. This ensures that sensitive instruments remain operational and that the spacecraft does not overheat or freeze.Furthermore, understanding radiative heat transfer is crucial in addressing climate change. The greenhouse effect, which is primarily caused by certain gases trapping infrared radiation emitted by the Earth, is a direct consequence of this phenomenon. By studying radiative heat transfer, scientists can better understand how human activities contribute to global warming and develop strategies to mitigate its impact.In conclusion, radiative heat transfer is a fundamental concept in both nature and technology. Its ability to transfer heat without a medium makes it unique and applicable in various fields, from architecture to aerospace engineering. As we continue to explore its implications, we gain valuable insights into energy efficiency, climate science, and sustainable design. Thus, a comprehensive understanding of radiative heat transfer is essential for both scientific advancement and practical applications in our daily lives.

在热力学领域，热传递的基本机制之一被称为辐射热传递。这个过程涉及通过电磁波（主要是红外辐射）的形式转移热能。与需要固体或液体介质进行热传递的导热和对流不同，辐射热传递甚至可以在真空中发生。这一独特特性使其在各种自然现象和技术应用中发挥着至关重要的作用。为了更好地理解辐射热传递，我们可以考虑太阳作为一个主要例子。太阳以电磁辐射的形式发出能量，这些能量穿过真空到达地球。到达后，这些能量被地球表面吸收，使其升温，并随后通过对流将热量转移到周围空气中。这个过程说明了辐射热传递对于维持我们星球生命的重要性。除了自然过程，辐射热传递在工程和设计中也具有重要意义。例如，在建筑施工中，建筑师必须考虑太阳辐射对加热和冷却的影响。通过利用具有特定辐射特性的材料，他们可以提高能源效率。反射表面可以最小化热吸收，而较暗的材料可以吸收更多热量，从而影响结构内的整体温度调节。此外，辐射热传递在热绝缘技术中也发挥着至关重要的作用。绝缘材料通常被设计用来减少通过辐射损失的热量。例如，双层玻璃窗利用两层玻璃之间的气体层来最小化辐射热传递。这在寒冷气候中尤为重要，因为保持热量对于舒适和节能至关重要。辐射热传递的另一个有趣应用可在航天探索领域找到。在太空中，由于没有大气，航天器完全依赖于辐射热传递来调节其温度。工程师必须精心设计热控制系统，以管理设备产生的热量和从太阳吸收的热量。这确保了敏感仪器保持正常工作，并且航天器不会过热或冻结。此外，理解辐射热传递对于应对气候变化至关重要。温室效应主要是由于某些气体捕获地球发出的红外辐射，这是这一现象的直接结果。通过研究辐射热传递，科学家可以更好地理解人类活动如何导致全球变暖，并制定减轻其影响的策略。总之，辐射热传递是自然和技术中的一个基本概念。它不需要介质就能传递热量，使其在各个领域（从建筑到航空航天工程）中具有独特性和适用性。随着我们继续探索其影响，我们获得了有关能源效率、气候科学和可持续设计的宝贵见解。因此，全面理解辐射热传递对于科学进步和我们日常生活中的实际应用至关重要。